Teknologi Sensor: 1- Karakteristik Sensor

Hi Okay we go into the

first material first with more sensors,

namely the basic principles of sensors and

their characteristics

will not discuss the introduction first 11

Armin characteristics

so

these sensors and transducers exist Explain

accordingly yes

this is an important component in

electronics

and is widely used

Das continues to experience development in

every material that is better

smaller there is only the field of

nanomaterials yes for this sensor so its

form its specifications its function and

technology well the more advanced a

country is then the higher the

technology to make this sensor

developed countries invest a lot

in the field of

nanomaterials that make something

new

Hi there is SK node Smart sensor yes There is

lemoncy for example one LED in one

chip we put our blood in then

everything can be detected with the

chip the shape is also like that

yes the shape of the sensor used to be stiff very big

now small and flexible

Touchscreen Touchscreen sensor we

press it first right

Takuya hard because it is considered

dead various

specifications are also increasingly sophisticated sensors

now

then the solutions and technology are also

increasingly sophisticated yes

so indeed research in the field of sensors

is one that is expensive yes it requires expensive tools

Therefore indeed

in our country has not made too much progress

in the field of sensors we are still

in the consumer stage

this includes technology that

strategically, the sensor

in its development is

very important to ensure

the functioning of a machine, gadget,

vehicle, and industrial process, the

role of sensors is getting bigger,

especially with the booming out,

yes, we are topping that sensor, all

sensors are connected to the internet, so

in the past, if we had a

generator, for example, a generator, a

turbine,

we monitored

the vibrations, maybe how this moved

our ears, but now,

just one small machine has many

temperature sensors, the figure of Ibra, the sensor signal of

his notebook, so later, hey,

hey, the current condition of the machine

can be monitored easily,

like that's why TVM is

predictive and preventive maintenance,

so a month before the machine is damaged, it

is predicted, finally,

repairs or temporary stops are made

so that it can be more optimal. All

machines are now trending to be monitored

using structures attached to the

machine parts and

connected to the internet,

then

sensors that are used in the world of

large industries, yes, lustre, medical,

aviation, yes, robotics,

so now, almost nothing

in our world is without sensors, which is

caused by magic because it enters the

house, there is a

sound sensor, Adek can detect

our voice, for example, we have a PIR detection sensor,

yes, almost certainly an infrared sensor

so that given to the thief, yes, it

has entered the household, the

triangle is like that So if

we master the sensors and how to

process the data, then we will

be the

main players in the world because

we still don't need

industrial seats in our own bodies Allah

has created sensors, yes, this

Hi, wait, actually,

humans are magical objects created by Allah, they are

indeed

very magical,

very difficult to imitate, until

now people can't imitate the eyes, we are

still learning to tell

our eyes to have 55 types of sensors in our bodies

Hi, the first

spy sensor, this

changes

visible light, visible light,

the scene has optics, what is it called, there is

visible light, yes, there is

below red, infrared

Hi, the country is smaller, there is I,

there is a higher king, visible

energy, namely

Hi, UltraViolet, yes, we will believe that it

looks like mejikuhibiniu

from red to violet, purple below red,

there is infrared, above full, there is

UltraViolet, we can only want

our eyes can only capture

Hi, I can only see from red to Purple,

after Purple with a

smaller wavelength, it can no

longer detect because it has entered the work of

UltraViolet or below red, yes, the

longer, larger than the

wave, infrared, we can no

longer see, our eyes are limited,

well This sensor is converted into an electrical signal

by the sensor in our eyes

and then welcomed in

propagation using the

sensory neuron system sensory nerves

to our brain So if

it should be problematic or broken

then it will be opened we say maybe that's why it's

still okay but it should be broken

yes that means we can see

million yes this is grateful for the people

who

KMA asked is still good and also the nerves are

still connected

xenserver is still working then

this ear converts mechanical vibrations into

energy Hi electrical signals yes can use

a box but it has this ability it

seems like actually like

piezoelectric so in the form of

our eardrum yes so it

has the ability between 20-20000 khz

vibration detection less than that force

can't be like that like an elephant

yes if an elephant can still do

infrasonic yes below Sonic

infrasonic can still be one still

can if we can't Can't

or more than 20 or silk

Sonic

can't

we

and if Sara the decision can't

because it can't convey to the

brain Have we ever felt

with or Sule if

[Music]

Hi

what is this ear we can't control

yes we always hear and arrive

if we ask

If someone talks, we can't

force our ears to not

listen, we always hear

that even if we close our ears,

loud sounds will still enter, yes,

but sometimes we

can decide that when we

sleep, yes, when we sleep, it's

like the nerves

between the ear threads and the brain are broken,

so whatever we hear,

we don't catch our brain, so when we

sleep, we never get angry, right? It's the

same with our eyes even though

there are many people, yes, many people

sleep with their eyes open,

maybe you've seen or even

experienced sleeping with their eyes

open, even though their eyes are

clearly open, it's what's open, but it

doesn't reach the

brain, it's when you wake up,

you were asked, did you see it? I was shaking my head,

seeing it

intermittently, this is indeed an extraordinary

creation of Allah Ta'ala, yes,

also detection at the tip of the tongue,

sweet detection, behind it, bitter,

left-right, sour, salty, yes, this is extraordinary

Hi, if it can be overcome by

our body, then also the nose and also the skin,

pressure and temperature detection,

this is also the same if we are paralyzed,

Regita lumpur sensor, yes, like a

broken cable, we burn it,

stab it in anything, it will feel if

the remains are broken. Well, that's what's done

by anesthetics, local anesthetics

or general anesthetics, yes, if possible, local

area only That's the level of the

pin level or the sick ticket is

raised so we need Titus to

be operated on that we can't have

coffee according to Isya Islamic Society

of America sensor can be defined

as a tool that provides

useful output yes as a response from

this friendly-friendly there is one that is measured

it doesn't want what it's called to provide

useful output in the form of numbers in the form of

voltage or yes from something that is

measured

Usually in our context the output

means in the form of email quantity or

electrical quantity What is the trick quantity

that we know there is current voltage

resistance inductance capacitance

apartment Grand setting rectum it is

physical quantities

it can be physical quantities can be chemical quantities

light temperature assumed as

Hi again the sensor is simply a

tool that

Hi Can be like that yes

not a version or what does he have

will be more so will

or convert yes

Hi big physics actually the proverb

Sunshine

sensing yes

Hi from physical or chemical quantities

to electrical centers forgot

earlier that

must capacitor voltage

is the term transfer

Sara Arabic convert or

change want even convert energy

into energy again in a

different form so energy into energy

that

grandmother often confuses between sensors and

transducers 1112 actually

even we sometimes have difficulty

distinguishing them you

don't need to worry about the definition

Hi so if

we look at this sensor part of the middle of

this semester like this the sensor is transferred

is a sensor plus-plus

energy

Well for example what for

example thermocouple thermocontrol

converts

temperature into voltage

so that the voltage is

confirmed its energy

so the temperature energy is converted

into energy in the form of

voltage that is different if the gas sensor

for example is the operation process press

like our tongue will be above not the

tongue unlike our nose nose and

capture CO2 gas particles

for example

then

CO2 which smells what substance molecules that

smell are

used that much that carries it right

particle enters our nose

more sensing that

then signal

so if the one that is assisted by energy

then the user is not

only until

now indeed

Hi Stable GTA means currently 12 Similar

yes we sometimes have difficulty

distinguishing between the

energy that converts energy from one

form to another

for example

solar cell yes

usually we can also make a sensor

so the greater the capture of

sunlight the greater the current

produced so energy actually energy

from visible light waves

sunlight waves

into current

then it enters the

sensor transducer there are indeed many

reasons Hi Can subscribe cement or

shift yes that or position or

proximity can use a

positive storage potentiometer and so on

for

speed sensors or museums can use

especially qadar.com parking

sensor generators for Force or TTG style

for

example, cramps episodes can be again sensors are

very many mentioned here

only a small part of this is very much

for temperature there is a bimetal ecosystem

Mister photo Daihatsu exactly hit the

transistor

say

if there is a question just go straight

that does not need to wait for the end

Then

from the many

sensors we can pacify to

33 this is actually

not too precise yes this is just I

took from one of the reference sources

this reference in the field of faults is

very much and died during the exam or

guys or whatever usually no will not

blame the

varied answers yes still submit

varied answers so there is no single

and share there is no single answer

as long as it is correct the answer makes sense

then it really

becomes sometimes in the exam

how much until the calculation exam is

not

freefilemp3.biz the medicine is single yes for example for

example

about the antenna exam only the length of the antenna

measuring the length of the antenna

some want to do what to calculate normally

yes some include the

material variable used for the antenna so

there are many answers there are not

many this I convey three types

yes

based on their use according to thermal

it detects temperature changes both solid

liquid and gas

Hi the meaning of thermistor is actually a lot

there are other

jersey mechanical changes such as

displacement or shift either in

the form of straight motion by the government yes

pressure flow level and so on for

example in many load cells for

hands

for shift

or

change of light

Hi that is light reflection or usually

this light can use LDR or Deda or

others

nahdiati do not get confused between

optical and thermal for example api

serap what we detect

heat or light

if thermal batik use

thermal sensor yes So if we detect

is the light then use optical sensor

that until wrong yes

now classification based on the

basic nature of the output

based on

its use yes pick it up again that's

seconds Who is he that output

now the

output is

electrical that was yes

Hi

voltage and current Okay there are five The

first we basuno resistance is

one of changing the quantity from physical or

chemical to

resistance

so the meaning in

thermistor too yes

[Music]

Then the second capacitance so the

physical quantity was

changed into changes in the capacitance of the

capacitor

SMK Class 3 lesson

Kak

electricity then this depends on the

type of material yes which is

different Well if This

permittivity is then multiplied by the

cross-sectional area in M2

divided by D the distance between the two Hi so

this cotton capacitor consists of two

cross-sections in the middle of which there is

this dielectric material if the electrolytic capacitor is

ceramic but here there are two productive ones

here

well if this is

pressed it will change this distance here

maybe reduce the little one

so that the

capacity will change this

example of pressure

is changed to

Hi

a-true capacitance material so

there are two plates yes

practice and platinum diaphragm

namely for capacitance

because for example for yes when

the amount received by the sensor is changed

to change inductance

this house renovation yes remember yes five

Kyuhyun OLX alien Labor Intensive for l n

this is the number of turns of Intan yes then

finally this is the cross-sectional area of ​​the

circle here yes

and l this is the length here this is the

length of the turns from the first

and last turns

here there is an example of a proximity sensor

so it detects objects passing in

front of it Nisa this box actually this is the

point this magnetic field is

generated

so there is AC voltage entering this oil

so that it creates a magnetic field

instead of being transmitted yes then

when there is an object passing here

in the area it eats changing

inductance

so that the inductance change is read

Hi

but be careful here what is tested that

changes this exposes the magnet is

metal yes

don't let

objects other than metal we use

proximity based on inductance like that

So we understand

Hi the characteristics of the sensor The goal

is for us Don't make the wrong

purchase, right,

later we will embarrass you, yes, we in the

company will be

asked to develop

hi oh product yes or production tools

with if it is still Polytechnic

often asked to make it so that it is more

PT yes

make one another production like that yes

besides

designing the theory then the sensors

the sensors read must think about using

pills Who uses what sensors and

designers How Don't make the

wrong purchase of sensors the object that passes

is

the cardboard but uses proximity detection

the sensor uses inductance that detects

metal eating bread is not connected

something like that

the fourth is still electricity

for example

changing

eh sunlight

must of course have a

wavelength of the that yes what is

different is with the material

if the silicon material has a

wavelength of so much or there is something that

makes the mess that makes it from red ginger

so the material is red ginger

Hi I can do sensors, yes but at the same time

transfer

this arrival will also become a trend

including renewable energy

although until now it is still

homework, especially in terms of the battery, a

solution like this is still very expensive,

especially in charging the battery, so there are still

many households that have not

used this solar cell.

Hi, the child is cheaper, PLN is still

Hi, the fifth, the

electric voltage, yes, to hold

this, there are many, this is easy, yes, because if the ADC

is usually

digital voltages,

if we still have to have voltage as well

or finally in the form of current, our

tension is the detection of voltage, the

voltage measurement is the best, it

can actually be read directly

by the ADC,

he said, tobacco or

turbine generators, for example, but it's bad for pipes in

which the contents are gas or liquid,

explosions can be liquid, can

change the rotation speed into

electric voltage Hi, this is it, but

shared generators,

hi,

okay, that's

eh, category, yes, so the input sensor can,

the product is

there, want to ask until here,

hi, eh,

if there isn't one, we continue one

more reason about the

most important chapter, namely the

characteristics of sensors and

transducers,

so there are static and dynamic,

using sensors, choosing sensors,

buying sensors, then we must know

their characteristics. Therefore,

the terms here, we

must be familiar with,

coastal operations, resolution, sensitivity,

suffering from stress, sispen ability, Steven

Boss,

we will discuss one by one

quickly, yes,

Hi Flag, this is not

Hi, source of everything, there are still many

sources others on YouTube Ibu

texbook is very much yes please

enrich with these sources

first accuracy he clean this

if Wikipedia says

is

Cluster Optimizer Man Sule specific

value

Hi so how close is the plasmaster

how close is the pop measurement result

to the specific value that we measure the

actual value so

how close

if precision is how close is the

SMK size and

between AC other narration

so how close is the measurement result

of one to another measurement

with the second third fourth fifth and

how many times we measure but indeed the

same object with the same condition

if we describe in this arrow yes

target this arrow

Hi this we take the bottom left first bottom left

he the value is

spread between one with warm

spread

then he is not precise the

first measurement here second here when

here fourth here only clean but

overall

his value is

around the actual value then it

is said to be accurate yes accurate but not

precise

Well if this is the opposite here

between snyi here close distance close distance

so between one

measurement-measurement measuring

other close distance

Hi but overall overall the

order is far from the actual value

Therefore here it is called precision

but not urat

if the bottom right here the value is

spread yes then it is not precise and also

no letters do not

explode converge towards one

specific value that is right that is

not accurate not accurate and also not

ideal like the top left here

the value is

close to the specific value accurate and the

measurement distance and the

others are not far

from what we expect

from a sensor If we want to have a

sensor Yes

we have to know the accuracy account how much is right

Bro

Okay No problem the receipt The side is

square it is not a problem for the

book application we are with you

Usually if precision and accuracy are

expensive because of that we will have

considerations one the price of the successor

or the company is expensive as the sensor

Indeed another we say like this Mbak this is

our stomach clean so much

we need this sensor there is no

other then This is what we pay

Hi instruments like that we

understand

siperson will

provide the service

Okay Marine Jupiter

resolutions

on

that the smallest increase in the input or

input was in the form of physical

or chemical quantities earlier

cm how many kg How many G candela

candela if the light that gets Celsius the

smallest increase that results in an

increase is bigger so it can be done

on the sensor output

Hi viewers we buy in stores the

resolution is one

Mm yes That means we cannot measure

other than folds Keti mm this we can

measure cm 2 mm 3 mm

4.3

cm yes or 43 mm like that 44 mm we

can't measure

44.5 0.5 that can't I 4.5 KM that ca

n't

hi why because the smallest value that

it can

accommodate or it can Size more

Hi The

later it gets the more expensive the sensor is the

better the resolution of the sensor the more expensive it

can be

high-low the higher

the resolution the more expensive the sensor is

that afternoon solution

Well for example, in this video it can

measure shifts up to 20 mm

we buy es kediti sensor with a

certain brand, yes, he said that it can

measure a maximum of 20 mm, maybe

a shift

Well, if

Hi, what is measured is 20 m, it will

output the number 100, so

if 00, if

20106 acres, the solution is to

divide 20 mm by 100, bro, everything is 100, so it

eats 0.2 mm, which means Sir Philip,

this sensor can measure multiples of 0.2 mm,

0.2 jumps

0608 when there is a face of 0.7, we

cannot measure

what he reads Yes, if not

0.86, the

lower values

are closer to where, yes, it's the same as

this ruler, we measure

ER65 mm, the condition is not yet Well,

if we measure 64.5 mm, it will be

rounded up to 65 or

down to 64 mm, the resolution

if we have a digital multimeter,

that's the last number, that's the one that

reflects the resolution, right, if there are two

numbers behind the decimal point, the

resolution is 0.01, the resolution is the

smallest increase,

it's finished, if the

expensive multimeter reaches a

high power, the better,

even though the resolution is actually The multimeter is

not exactly that much as if

glaucoma 3001 actually the resolution

Hi but it could be less than that only

the reading is 0.01

resolution resolution

then in PT sensitivity

Nicole who asked directly

it is the output change that is

detected because of the

input changes the input yes

so here is the

change here who is there for example example

yes example output voltage

for example

our sensor that I tension

changes

Well if the input changes small the

voltage is

small or large like that if with a

small change input there will be a

big change in the output voltage Hi

then it is said to be very sensitive video

as well as high specifications but if

the opposite is the case then it becomes low use if

we Draw this yes this is the input

heal yes this is the output the

bigger the input is released the bigger Puput right like

that yes Well

actually the bigger the bigger the bigger

or

the bigger not the biggest this is

depicted in this graph

sensitivity if in junior high school

class 1 this is called gradient gradient

linear line gradient is the

bigger

Hi this face the pawn results so text

then the higher the sensitivity

the bigger the sensitivity

this occurs error Yes error yes we

want how much in reality how much there is something

strange over sensitive yes we change it

a little bit

the output changes very much so we need to consider

this in purchasing sensors that

our designs

then linearity

is the ability to produce

input and output characteristics look for

smash smash Chandelier

Karlin airport straight line yes

visible

Hi this so that it doesn't

happen if we have a load Cell

scales yes

blessing of human beings most Gan

maximum 200 kg then

between 0-200 it is still Dini Harja

our weight is 60 the kekakan 60 here

still we 80 still read 80 here

But if it is more than

285 kg so force kg it is no

longer read 500

but maybe read only

300k the graph is empty here

because

when he wants Ki our factory makes

local then he has linearity

this watch look in his bag only up to

200 kg for example here after 2 kg

he does not guarantee

this load Cell is still linear

we force it higher than 2 kg

later the result

Hi not the same like that 6 directly here

the graph or definitely 2 tone yes Between two

tons of money 500 kg is getting the same value the

output value in Lhokseumawe is between

two tons = kg because of what Because the

linearity limit is 200 kg, it

's already overloaded,

this is another thing, don't let us be like this,

we want to weigh 100 kg, but we

buy a scale for

cooking at home, this is making cakes,

yes, if our mother makes cakes, the scale is

only up to five kilograms, yes, the

local one is that we use to

weigh our weight, it's

not accurate,

this grandmother, if it exceeds the limit due to saturation,

Well, if this is the case,

Hi, you, it's actually at the

zero limit, around zero, he

band,

for example, ultrasonic, yes,

ultrasonic to measure the distance

that is suitable for photos, the distance he must not be

less than a certain number of cm,

how many cm, so if we have an

ultrasonic sensor, he can't detect objects

that are too close to him, if

not, it goes into John, he

Well, if you buy Onyx, check the

datasheet, how many buildings, how

much is the DP, because if it's the same

as Sunardi, warships, yes,

seas, including submarines, if

they are very close to friends,

Hi, transmitters from there, the system

can no longer be detected,

then the next is the hysteresis, it

doesn't accept at least hysteresis,

so the deviation from the

sensor output at a certain point from the

input signal when approached from the

opposite direction, this is if we are like This is the one

that was just one line, this is good,

one input value has one

output value, right?

But if there are two of these

Hi, I'll take a case example, for example,

this is fast hysteresis, here there are

these types, e-type, which is a

valve or Fals, also closes. This phase is

regulated by the electric current injected

into this phase, yes, the greater

the current, the greater the

valve opens, then the fluid flow flows

here or Flow Flow flows here

flows Okay, we are here, yes, when zero

amperes, God, there is no current, then

there is no slogan, yes, it can be closed, it is

raised, it must rise, rise, rise until

0.05 amperes, it will be 50000000000, he still

has no flow flowing, it

continues to rise, down, up, up until 0.1, there is

still no flow flowing

when

0.12, the racing men have just subsided, the paint is

open, the

flow starts to exist and until 0.15, it

will finally reach one more

one more until the

number zero point two, the flow reaches four

less

A4 a little less

then continues to rise

Hi, after reaching this number, it is already full

HD, for that, it is completely open,

then it will close, we close it, yes, we close it,

then we use not the

green line but the green girl

above this

we keep typing we pour

water little by little

we are more sensitive here yes

point 0.2

when we increase it must be the

electric current then

Solo what will happen at 0.25

amperes is less than four

flow from

Hi but when we decrease

it is around four and a half the flow is there

even though both must be

injected kVA is the same 0.2

amperes

Hi but the results will be different between

when we increase

and we decrease

well this difference is called hysteresis

wife comb so between going and coming home

it uses a different graph

this is like storyshift so be careful

using using sensors we

have to know the lines from one that is

serious next are the fans

variable range

on the planned instrument

we can remember here

this is the speaker means between this point

and this point yes here

about linear it is called spend so

if we buy our scales

how many hamsters so how

many will use the scales

in the stainless ring he work suit

one more

Yes already in the

criticism shop or repeat edition Ability

ability to repeat is the difference

between two

prayer readings one measurement repeated

so we measure the same object once

twice three times four times

especially it is approximately far or not the

difference

but of course the measurement conditions are the same

yes right with the temperature the same

all environmental conditions

different understanding well this

influence what is called related to

precision What we have discussed earlier yes

Hi Tec

then

next we discuss crazy is assessed

so sometimes the sensor before

it responds it needs time or

delay for example our skin sensor

Yes we have this skin

maybe some of us have been

touched by soldering iron or holding a

hot object or the determination of the allport

of the motor

between

touching and feeling it is

like we touch now

we don't feel it but when

a few seconds

or a few milliseconds we feel it

while our hands already have a mark

Hi because Soldier

earlier Indah happened with the sensor so

if we

define it quantitatively yes

there is one reference he uses

the number 10 and

so this defines between

when the input occurs for example we

touch the solder here Lukita

Lukita feels slowly yes we haven't

felt it or already from

so when it reaches 10% it is called the

[Music] value

so using a 10% limit between the

time required between the

input Trigger yes with

Hi si The sensor detects 10% of the

trick from the input, the same as

our hand, actually, when it

has touched the

soldering iron, it is thick,

we have actually responded to it, but

maybe it is not big yet, we have not had time to feel it, it has

reached our brain after 10%,

or we feel it. If we continue, then

stick it on, the head still hurts

a lot, yes, like that,

this is assessed by Tibet between input and

output. Well, if restime

is the time needed by the response

to rise from ten percent to

90% of the final value

from 10

to 90,

it presses

the times called freestyle, actually, the

slash from before,

then Mirzani ring, ideally, it is a

perpendicular force,

immediately given input, immediately the

output blog responds like that, yes,

when we

want to insert a thermometer into a

hot liquid in boiling water,

we insert a digital thermometer, yes, what

we want is

right when we insert it, exactly,

the number 100 comes out, yes, there is no, there is no

Ray style takia, what happens is the filament

in the

thermometer sensor slowly

increases the response slowly, which he

slowly slowly slowly until it reaches

100, called

restime, but if we drain is

formed from the number ten percent of the

light seriously update

the video retain

Mbok now the last one is

in the smallest processor character frequency response

Hi menstruation not all sensors have

all the characteristics no yes example

suppose this frequency only

There are how many types of sensors that have

frequency response characteristics

for example big is piezoelectric

it changes mechanics into

voltage

vibration into voltage for example can be

Ultrasonic

Hi then microphone speaker also

Same episode back and forth yes vibration

into voltage DC voltage vibration

more

Well if we buy piezoelectric

Hi what are the different thicknesses even

far away our ears will

Video Recorder change

Hi sound vibration into

Matrix

Nadia has this frequency response

like this

if our ears mean the left limit

is 20 HZ right calf there is 20 kHz

this is the region of the

work concentration of our ear thread

Hi Well if we take the example of

ultrasonic which is yellow there is

Sonic which is for mothers

to check pregnancy yes maybe we are

allowed in the stomach Yes we have been

shot electronically yes in

our mother's stomach

Hi this uses the internet with

a frequency of so many megaflops feel at home

here ah Hi if it is stained second there yes

Can't be read Director of this

or less than that then it can't be done

either, for example, outside the

frequency that should be,

well, this can cause it to

require resonance, so if we

shoot

eh with a certain frequency, yes,

Hi Japan TV is

one Heart,

who is in the middle, for example, 13 works,

then he has a name,

Hi, like the harmonic Village khz,

multiples of two khz, 3 kg, and so on,

and if we

shoot with the harmonic frequency

outside the region, then there will

be

Hi, resonance, this resonance

can cause danger,

uncontrolled telephones, as an

illustration, try if we stand

on a bridge, Nikita is a scene of

tens of people standing on a

bridge,

then we keep stomping our feet

simultaneously with the same frequency

as the natural frequency of the bridge or

its harmonic,

let's move our feet, we

step on the bridge

simultaneously with the same frequency

as the natural frequency of the position

or its harmonic frequency, then the

bridge house is

so small, why? Because

our energy is accumulated,

our frequency is the same as the

harmonic frequency from the side of the bridge,

then the national

becomes dangerous, or control,

something like that

So, pay attention, if we use

piezoelectric,

it operates at what frequency,

between what and what verb tense

Inya, don't be more, don't be less, if

possible, right on the centralia or

FC frequency, right? Fancy central here in the middle,

that's the most, in

the end, that's how we usually buy the

working frequency that we want

I

Max, that's all we can say,

if there's anything you want to ask

regarding this, we invite you to.

Thank you for your attention.

Assalamualaikum warahmatullahi

wabarakatuh