Questions tagged [piezo]
Piezoelectricity is the electric charge that accumulates in certain solid materials (such as crystals, certain ceramics, and biological matter such as bone, DNA and various proteins) in response to applied mechanical stress.
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What is the simplest way to boost the output of a waveform generator to drive a piezo mesh?
I am trying to generate a ~40vpp sine waveform with a Rigol DG1022Z. Its maximum is 20Vpp.
I want to test the device at frequency ranges of a piezo device from 40kHz to up to 200kHz. This is to drive ...
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What piezo do I need to create electricity by walking?
What piezo do I need to create electricity by walking? Would any piezo work? Please help me, I need this for a school science project. I could buy a single piezo just to test, but I want to buy them ...
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Getting only DC from TC442A after inputing a sinewave [closed]
I am trying to increase the current to be able to drive a piezoelement that has an input current of 273.78 mA. Because the output sinewave is 20mA i connected the output of the LM358P to a TC4427A to ...
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I need to create a mechanical vibration of 40 kHz. What would you suggest?
For research purposes, I need to make a vibration of 40 kHz modulated at 200 Hz. I have a DDS signal generator that can output this specific signal.
I tried to amplify this signal, but I'm nowhere ...
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How to amplify signal enough to make a Langevin transducer vibrate?
I'm a little out of my zone of mechanical engineering here, so I'll need your help.
Up to date, I got the right frequency (40 kHz modulated for a 200 Hz low frequency) coming out of my function ...
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Are electrical clocks influenced by vibration?
There are many different electrical clocks for generating pulses with constant frequency (e.g. RC oscillators, crystals, OCXOs, MEMS oscillators, chip-scale atomic clocks).
If they are mounted on a ...
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How synchronous can a number of electrical clocks in separate devices remain? [closed]
Imagine we have 5 circuits/devices and in each we have an electrical clock that generates a pulse (for example with a constant frequency of 100 Hz or 1 kHz).
In the beginning we have wired all the ...
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How to make parallel piezoelectric/PVDF transducers for force measurement?
I am having difficulty in understanding a concept since I am not in the electrical field. I am working on a project to measure the dynamic force on a surface using embedded PVDF transducers. Based on ...
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Ceramic resonator as piezo "leg"-style actuators
I'm toying with the idea of tiny "caterpillar robots", essentially PCBs with rows of piezo "legs" that can be powered to provide a tiny travelling wave along those rows, which ...
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ADC input protection with a series resistor
I am trying to protect an ATSAML22J18 ADC input from sporadic piezoelectric sensor voltage spikes.
The piezo's typical output range is matched to the sensing application. The application makes it ...
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Limiting piezo input voltage without limiting resolution
I realise I am asking what might seem to be a fairly common question here, at least I have found this question online several times, but really never / rarely an answer with some sort of follow-up ...
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Breadboard to perfboard
Update:
Thanks all! Problem solved. I tried to connect all the resistors to the ground and it did work!
I'm having a problem regarding a circuit on a perfboard. I try to use five piezo sensors which ...
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Measure up to 50um linear displacement with ~100nm accuracy [closed]
I am using some open loop, mechanically amplified piezoelectric (PZT) devices to make linear movements of up to 100um. PZT are well known for hysteresis characteristics thus its repeatability is not ...
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How to drive 400 nF load with DAC
I need to drive a some kind of pzt transducer with a triangular 6 Vpp voltage. The transducer is modeled as a 400 nF capacitor. I want to drive it with 10 kHz 3-9 V triangular voltage however my DAC ...
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How can I create a mist maker with a 9 V DC power supply?
Context
Note: I am a beginner with electronics so please provide detailed explanations and add descriptions that are more beginner friendly. I really do want to learn how this all works.
I am trying ...
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Sensitivity too low in piezoelectric vibration sensor circuit
I run a parking facility that has recently suffered a rash of thefts, accomplished by cutting through our chain link fence.
I am trying to design a simple circuit using a piezoelectric vibration ...
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Why is PVDF used for ultrasonic receivers and not transmitters?
PVDF is one of the best piezoelectric polymers, and has a good acoustic impedance match with water. It is often used in ultrasonic receivers, but it seems like people don't use it for transmitters. ...
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Possible causes of ceramic capacitor damage on high-voltage op-amp supply pin
I am working on a waveform generation board.
The board contains +-200 V supplies and +-24 V supplies. The board takes a low voltage (+-15 V) waveform from a DAC on separate board and outputs +-200 V ...
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Is there any way to increase the impedance of a piezo element?
I'm trying to make a similar earpiece as the old crystal earpieces, that were made of a piezo element. I think they had about 20 kΩ impedance. I bought some piezo elements but I never found any with ...
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What's the simplest way to produce 150VDC for activating my piezo stack?
I recently bought a piezo stack for research purposes. To activate the piezo stack and get the maximum stroke I have to supply 150VDC.
I want to use the piezo stack in two states only: 0V and 150VDC.
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High output impedance piezo guitar pickup is better attenuated by a shunt capacitor than an inverting opamp attenuation circuit
The circuit below is meant to attenuate a high output and high output impedance piezo electric guitar bridge pickup -7 dbV. The circuit models both the pickup output impedance and load of the cable ...
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How to drive atomizer? [closed]
I'm trying to build my own diffuser with a piezo atomizer. I'm new to electrical engineering and don't really know what I'm doing. Reading the specs for the atomizer from the description it says:
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Crystals - Works on the principle of piezoelectricity or inverse piezoelectricity
I've done google search on the working principle of crystals and piezoelectricity.
Nothing explains the actual principle. Is it piezoelectricity or inverse piezoelectricity?
From what I've understood, ...
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How to figure out the current drawn by a 40kHz ultrasonic transducer?
I have some 40kHz ultrasonic transducers (the same type as which you find in the common Arduino ultrasonic distance sensors.) All information comparable to a datasheet I got was:
I don't get how to ...
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Piezoelectric Harvester Circuitry
Can anyone tell me what type of circuit is used in this piezoelectric harvester? And if possible, could you also provide a diagram of it when connected to battery?
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What Does This JFET Do If Vgs is Always 0V
I'm trying to understand this reference circuit that I found in the datasheet for a piezo accelerometer.
I don't understand what the purpose is if the gate and source are common. My best guess after ...
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Emissions issue with H-Bridge driving piezo transducers
I have the following block in a PCB design:
This drives a ~ 5W piezo transducer at 113KHz. The functionality of the system is great, nothing heats up at all. The issue is when I did a quick pre-...
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How to determine LS, CS, RS, and CO of a piezo transducer for simulation?
I have a 24mm piezo transducer with the marking SSE2425TAL from overseas. There are no detailed specs nor graphs to get LS, CS, RS, and CO at various frequencies (but just 25 kHz is fine).
I'd like to ...
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Best way to reduce HF noise in OMA2134 op-amp preamp circuit
I have built the following electric guitar preamp which is mounted inside the instrument. The primary reason for doing is that there is a piezo pick up in the bridge with a very high output impedance ...
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Increase voltage of a 1.6MHz frequency
I have a digital signal with voltage of 3V and frequency of 1.6MHz. How can I increase voltage of this signal to 36V? The signal is generated by PWM feature of esp32.
EDIT:
I'm trying to use this ...
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Mist maker using a piezoelectric disk. How does this circuit make oscillations?
This video of Great Scott has been referenced many times here. The schematic he uses is this:
The piezoelectric disk requires high oscillating voltage to work. This combination of L, C, MOSFET and ...
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How does direct piezoelectric effect convert mechanical energy into electrical energy?
I am studying direct piezoelectric effect and if I understand it well the idea of direct is that if we apply force in an hexagonal cell unit for example, we create a polarisation, but how do we ...
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How can we model the piezoelectric behavior of a capacitor to mechanical and thermal transients?
I would like to model the behavior of ceramic capacitor to thermal and mechanical stress.
We are seeing power supply fluctuations during reliability test and suspecting the ceramic capacitors' role in ...
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How do you generate an impulse signal in a mechatronic system? [closed]
Background:
I have a piezoelectric force transducer that I am using to measure the force produced by a combustion reaction in a tube. The issue is that there is a lot of ringing that occurs during the ...
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Is it possible to create a piezo power generator? [closed]
Piezoelectric effect can be reversed. Hence suppose a crystal and a steel frame with a screw built in it. When putting pressure on the crystal via screwing, a tension should appear between both sides ...
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Simulating IEPE powered sensor and current source
I am trying to create a simulation of an IEPE sensor circuit and get it to match measured behavior of something like a PCB 378B02 microphone connected to such a supply.
IEPE sensor-side amplifier ...
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How to measure output of a piezoelectric?
I have a (perhaps trivial) question that is buzzing me a bit these days. A brief explanation of the project: I have metallic plate with two piezoelectric sensors attached on each side. One is used as ...
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How to measure the waveform of a piezo igniter?
Is there a (cheap) way to measure the pulse of commercially available piezoelectric igniters like those used in lighters or BBQ grills?
I use them as a cheap (and very crude, for sure) method for ESD ...
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Impedance matching transformer for piezo acoustic guitar pickup
I am trying to determine the specifics (windings, wire gauge, core material) for an impedance-matching transformer for a piezo pickup on an acoustic guitar. If I can arrive at a 2 megohm input, 20 ...
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Can I increase the inductive component stored-energy of a Piezo Buzzer?
In this example of a model for a piezo element, there is an inductive component (I think this is a quartz crystal model -- it should not matter for the question. This graphic was also used here and ...
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Buzzer differences and configurations
I want to understand the right way to wire a buzzer. I know there are passive and active as well piezo buzzers and magnetic buzzers. Also, a passive buzzer needs an external source while the active ...
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step-up transformer design - basics
I want to step up Li-ion battery voltage to ~100-125V at ~145kHz and ~0.5Arms.
(The circuit is to drive a small piezo at its ultrasonic resonant frequency.)
I have limited space.
Are there any rules ...
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How large is a piezo buzzer's deformation?
For a standard run-of-the mill piezo buzzer (as in the image below), what order of magnitude would the deformation be (compared to 0V) that occurs when driving it within its normal operating ...
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Piezo connected to ESP32 - Why doesn't it kill the input?
I have a ESP32, and a piezo disk connected as a sensor:
Piezo - to GND
Piezo + to Analog In
50K Resistor in parallel to piezo
My understandin is that the piezo generates a voltage when it is ...
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Could you please tell me resistor parallel with piezo PKLCS1212E4001-R1
Please could you tell me the reason why you add a resistor in parallel with a piezo?
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Generate vibration and sense with the same piezo
I would like to build a sensor that generates some vibration on a material and then sense the vibration of the material. The simplest approach seems like using a piezo transducer. Ideally in ...
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Mimicking the output of a piezo sensor with a membrane potentiometer
High level
I'm trying to use an electronic drum pedal as an electronic drum trigger. My specific e-drum unit has only one pedal input, so I need to repurpose a drum trigger input in order to use more ...
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Can I use Op-Amps to drive a ultrasonic piezo transducer at 200kHz
I’ll admit I’m not the most knowledgeable guy when it comes to electronic circuits, so I thought I’d ask before breaking anything.
I’m looking to drive a piezo transducer using a 200kHz sine wave. The ...
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Do almost all modern smartphones use piezoelectric speakers?
Do almost all modern smartphones use piezoelectric speakers for both the ear speaker and the speakerphone speaker?
The reason I ask is because I rinsed off my waterproof smartphone (which I've done ...
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How to surpress coupling between two circuits
I have the following setup:
2 piezo transducers are placed 0.7 meter apart from eachother in water facing eachother. 1 piezo (PA) acts as the sender, the other piezo (PB) acts as the receiver.
PA ...
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