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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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Matching circuit for piezo transducer

I am at the stage of designing a system that match impedance of the power output (half-bridge) to a piezo transducer operating at 1MHz (Max 60W of power). I calculated the piezo parameters from the ...
piotr's user avatar
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Coupling of mechanical and electrical resonances in piezoceramics

What is the relationship between electrical and mechanical resonance of piezoceramics. I have a piezoceramic disk made of PZT-5A material. Feeding a sinusoidal waveform to it from a signal generator, ...
Denis's user avatar
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How to drive a piezoelectric air pump with DC

I have a small 2 watt piezoelectric aquarium air pump, which uses a piezo device instead of an electromagnet, to move a diaphragm. There is a bit of circuitry which seems to convert 220v to 110v, but ...
Alan's user avatar
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Is this a good circuit for connecting a piezo disc sensor to a microcontroller?

I'm making a musical instrument, where you pluck "teeth" which have piezo disc sensors attached to them, and I want to get the output of the piezo into a microcontroller so I can interpret ...
Jeff Kaufman's user avatar
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1 answer
127 views

How to solder wire on Piezo Disc?

I am working on a project that has this piezo sensor. How I can connect wire to it?
Monesh Rathod's user avatar
2 votes
0 answers
57 views

Power stage for driving a 100W piezo in resonance [closed]

I'm trying to design a power stage for driving a piezo transducer. It has resonance at about 1 MHz. My system has a DC voltage of 24V. The circuit will be locking frequency based on phase of voltage ...
piotr's user avatar
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1 answer
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Choosing a strong/flexible wire for Piezo bender

I am using AB4113B The issue: Due to vibrations wire soldered on the Piezo is breaking. The setup: Piezo (metal end) soldered on a PCB directly, and wire is soldered on ceramic part to a PCB pad close ...
Anurag Kumar's user avatar
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1 answer
59 views

Signal conditioning of a piezoelectric sensor

I am currently working on a project that involves the use of a piezoelectric sensor which is of the ceramic type and produces charge when a force is applied. I want to convert this charge to a voltage ...
Hannan Ayub's user avatar
2 votes
1 answer
102 views

Piezo buzzer testing for defects using electrical parameters

I am looking for methods to verify whether a Piezo is damaged/defective or good. Are there ways to verify that using just electrical parameters like resistance, capacitance etc. My issue is that it's ...
Anurag Kumar's user avatar
1 vote
0 answers
86 views

Reduce gain of charge amplifier

I have a circuit for measuring piezo signals, roughly based on Analog Devices CN0350. It contains a charge amplifier that converts the piezos' charge to a voltage signal. When measuring signals of ...
Johannes's user avatar
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2 answers
121 views

Do piezoelectric or piezoceramic sensors have a fixed resonating frequency?

I am working with a sensor which has piezos in it. I want to know what piezo resonating frequency really means. The piezo I'm using has a resonating frequency of 570kHz as mentioned on the website. ...
Monesh Rathod's user avatar
1 vote
2 answers
100 views

How can I find the resonating frequency of a piezo crystal?

The crystal looks like in the given image I want to find the resonating frequency, whether is it variable or fixed. I find its manufacturer has not given much detail about it. Does a piezo resonate ...
Monesh Rathod's user avatar
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1 answer
110 views

Piezoelectric driver circuit

This circuit is used to drive the piezo actuator used in external cavity diode lasers to tune the frequency of the laser. I don't understand the purpose of Op-amp U9 and the other transistors used. ...
Shubham Chowdhury's user avatar
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50 views

Piezoelectric driver capable of ~2500hz and 160-200 Vpp capable of driving a 30-50nF disk?

I've been lucky enough to inherit a project where I need to be able to drive 35mm piezoelectric disk at a frequency of 2450 hz and an amplitude of 160 volts peak to peak. The last person on the team ...
Eisotopius20's user avatar
1 vote
1 answer
161 views

LTC-3588: how to do vibration energy harvesting?

I am trying to collect energy by using an LTC3588 and some piezo elements. The voltage meter shows from -200mV to 200mV depending on how much / how strong I touch the piezo. I have set the LTC to 3.6V ...
Døner M.'s user avatar
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3 votes
3 answers
897 views

Noise increases suddenly in op-amp circuit

The circuit is a charge amplifier that connects to a piezoelectric sensor. A buffered voltage divider provides a VDD/2 virtual ground, so the output is in range 0.0V - VDD and oscillates around VDD/2. ...
Johannes's user avatar
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1 answer
160 views

Battery charging by vibration energy harvesting (LTC-3588) - how to wire?

I would like to harvest energy to keep a LFP battery charged (for a BLE device which has VERY little consumption). The battery already lasts several months, but since the device will be closed/sealed ...
Døner M.'s user avatar
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2 votes
1 answer
247 views

Would this crystal radio circuit work?

Would this crystal radio circuit, that I came across, work? If it would not work, I would like to know which part of the circuit could be the likely cause and why. The speaker shown is actually a ...
Mr.Ananas's user avatar
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29 views

Thorlabs PC4QM With TI DRV2700EVM

I am working with a 650nF Thorlabs PC4QM piezo load, whose information I leave attached. And to carry out the operation I'm considering a Texas Instruments DRV2700EVM, has anyone had experience ...
Luis 's user avatar
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57 views

Piezo Transducer RX/RX switch with a charge amplifier

I'm trying to design a circuit that can both transmit a 40kHz square wave and receive a 40kHz sine wave using the same ultrasonic piezo transducer. Switching between them doesn't have to be very fast (...
Michal's user avatar
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2 votes
1 answer
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Determine the Impedance of piezo using NanoVNA

What is the right tool to verify the resonant frequency of 1 Mhz (per spec) piezo? Consider that I need something low cost, does it make sense to use NanoVNA or does it require an impedance analyzer?
user1135541's user avatar
1 vote
1 answer
142 views

Piezo sensor at resonance - equivalent model

piezo materials are commonly modelled with the BVD model When the piezo is used as a sensor, they are commonly modelled as a current source in parallel with a capacitor because à external force ...
nohu42's user avatar
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40 views

Will DAC81404 work as as piezo transducer driver?

I am in the process of designing a PCB that will drive a piezo transducer that is split into 4 quadrants with a DAC81404. The piezo transducer will move an atomically sharp tip to probe the surface of ...
Calvin Gloster's user avatar
1 vote
1 answer
134 views

Self Drive Piezo Element/Self Excited Piezo Element Circuit

I have a self drive piezo element/self excited piezo element that I want to resonate at about 1-2kHz. As of my understanding, by using a circuit like in the figure below, the element will resonate at ...
eidetech's user avatar
1 vote
0 answers
259 views

Why use a DRV2700 high-voltage piezo driver in this application?

The DRV2700 from Texas Instruments is an integrated circuit for driving piezoelectric/capacitive loads at relatively high voltages (max. +/-100 V) while the supply voltage can be as low as 3.3 V. This ...
Charly's user avatar
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0 votes
1 answer
417 views

How can I connect two piezoelectric sensors in Proteus?

I'm having a problem on my project. I connected two piezoelectric sensors together in parallel, but when I run the simulation on virtual terminal, the reading shows that it only using one ...
Kcjcj xjxjx's user avatar
0 votes
1 answer
125 views

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 ...
nk13's user avatar
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1 answer
89 views

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 ...
FroZen Mitko's user avatar
0 votes
1 answer
48 views

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 ...
Hakim Marley's user avatar
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167 views

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 ...
qc_engineering's user avatar
1 vote
1 answer
120 views

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 ...
qc_engineering's user avatar
5 votes
2 answers
315 views

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 ...
Alejandro's user avatar
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1 vote
3 answers
191 views

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 ...
Alejandro's user avatar
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0 answers
69 views

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 ...
Ali's user avatar
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1 vote
0 answers
152 views

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 ...
Christian Chapman's user avatar
1 vote
1 answer
365 views

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 ...
Matthieu Kints van's user avatar
2 votes
2 answers
144 views

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 ...
ber201's user avatar
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1 vote
1 answer
66 views

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 ...
Jason M's user avatar
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1 vote
2 answers
123 views

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 ...
Mustafa Turhan's user avatar
8 votes
3 answers
1k views

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 ...
Alex Thomas's user avatar
0 votes
0 answers
138 views

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 ...
Ryan's user avatar
  • 101
2 votes
1 answer
95 views

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. ...
Colin Marcus's user avatar
5 votes
2 answers
386 views

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 ...
Nirmala's user avatar
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0 answers
93 views

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 ...
mathias's user avatar
1 vote
1 answer
208 views

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. ...
nithu's user avatar
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3 votes
2 answers
1k views

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 ...
p-we's user avatar
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1 vote
2 answers
379 views

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: ...
Sean's user avatar
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0 votes
1 answer
187 views

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, ...
user avatar
0 votes
1 answer
953 views

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 ...
TeD van Loon's user avatar
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0 answers
53 views

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?
Jabity's user avatar
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