Questions tagged [transducer]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
0
votes
1answer
227 views

Inserting transducer model into a circuit

I'm not looking for complex explanations on transducer modeling, rather lets assume we have a very simplified transducer model of basically an R and C in series: simulate this circuit – ...
1
vote
1answer
263 views

Acoustic Emission Sensor [closed]

I wanted to use Acoustic Emission for the detection of termites. I was going through some research paper and they suggested that it can be done using an acoustic emission transducer of 60khz frequency....
0
votes
2answers
72 views

Are ultrasonic Tx/Rx pairs really just the same sensor?

I want to retool the classic HC SR04 rangefinder to be able to do ToF gas flow sensing. I need to be able to do ToF on a column of air in both directions, so it benefits me to be able to use the ...
0
votes
0answers
33 views

Understanding the workings of an ultrasonic sensor

I am trying to simulate an ultrasonic sensor using a ray-based approach. For that, my current process can roughly be described as such: approximate wavefront using rays that mimic the shape of the ...
0
votes
1answer
40 views

Battery powered 4-20mA sensing application

I have a base system that runs on 3-AA batteries which it regulates to a system voltage of 3.3V. I want to interface that system to measure a 4-20mA sensor. For the sake of argument, lets say that ...
-2
votes
1answer
53 views

How to simulate Magnetic Transducer Buzzer (SMT8585-03H03LF) in LTspice- any model available?

I am adding a Magnetic buzzer into the design. Buzzer part number is SMT8585-03H03LF from Bestar electronics. Below are the specifications for quick glance. Is it possible to get a LTspice model ...
1
vote
1answer
145 views

Transient Response Suppression

In my project i am using an ultrasonic transducer. The transducer has a high Q-factor so that it's zero input transient responses decay rate is quite low and i am suffering from that because the ...
0
votes
1answer
43 views

How to read the following datasheet of a sensor?

I wanted to write about static and dynamic characteristics of the Honeywell pressure 19mm transducer. I found my sensors datasheet but could not find the following characteristics mentioned in the ...
0
votes
2answers
42 views

Questions about a wiring diagram of a transducer

I have an old current output wind-meter with the following diagram: Unfortunately there is no online documentation about the device so I had to take the above photo. I'm curious what could be the ...
1
vote
1answer
360 views

Voltage spikes in h-bridge inverter square wave output

I apologise if this is a repost but I couldn't find the problem anywhere else. I am trying to power an ultrasonic transducer using an h-bridge inverter design to convert arduino signal into a higher ...
0
votes
1answer
175 views

Pressure transducer being read using Labview

I understand this is not a typical question for this forum, and that NI Labview forum would be better (I posted there too), but I am hoping that someone who is proficient in Labview will see this. I ...
0
votes
0answers
15 views

Ultrasonic transducer

Can a small ultrasonic transducer be retro fitted to the fuel bowl of a motorcycle carburetor. For the purpose of using sound waves to maintain clean jets. And possibly lengthen the longevity of the ...
1
vote
1answer
113 views

How can I electronically generate a signal similar to the one produced by striking a piezo?

I feel like this is a bit of an unusual request so I'm having a hard time figuring out how to research it. My question is: is there some way that I can use an Arduino to programmatically generate a ...
2
votes
1answer
348 views

Creep on a load cell

I am working with a 50kg load cell. In the datasheet(https://www.sparkfun.com/datasheets/Sensors/loadsensor.pdf), the creep is defined by (3min)%FS. What does it mean?
0
votes
1answer
67 views

Ultrasonic transducer circuit

Can someone explain how these work ? I want to make my own ultrasonic bath, but I can't find any useful specs. Do I need some specific circuit to run them or it's just 'plug and play' ?
-2
votes
2answers
76 views

What are the components of this sensor? [closed]

Attached is a schematic that looks like an accelerator or a combo sensor with plenty of inputs/output. Can you please assist in helping point out the pull up resistors, voltage regulator, and any ...
0
votes
1answer
42 views

How to determine LVDT sensitivity?

I performed an experiment using an LVDT where I used a generator voltage of 4.84V. I determined the secondary voltage at the beginning position, obtaining 2.48V and at the end (displacement os 22.5 cm)...
2
votes
1answer
144 views

Operating ultrasonic transducers [closed]

I have constructed my circuit as shown in the picture. I am using raspberry pi to generate PWM to the transistor base and an MCP3008 to convert the anolog signals from the receiver. However, both the ...
0
votes
1answer
35 views

wiring Tamura 4 pin hall effect current transducer to differential daq

How do i wire a 4 pin hall sensor: 200A model below https://www.mouser.com/datasheet/2/397/L03SXXXD15-469349.pdf I don't understand the wiring schematic below I currently have +15 to pin 1, -15 to ...
0
votes
1answer
44 views

Signal lines from transducer made common by op-amp

I am trying to amplify the difference between signal lines off of a Wheatstone bridge based force transducer. I've wired up an LM358N Op-Amp as shown below in a differential amplifier. With R1=R2=...
3
votes
1answer
81 views

What type of ultrasonic transducers are used in medical ultrasound devices?

When I search on DigiKey for ultrasonic transducers, all I get back is the circular transducers that are sold for the various DIY projects. i.e. the picture below: However, the "medical" ultrasound ...
0
votes
1answer
89 views

What happens to current transducer if the line it is attached to short circuits?

I am using a SCT013-30 current transducer to measure current to an AC line. I hook it up to an ADS1115 16bit Analog Digital Converter. I would like to know what happens to the signal when the AC line ...
2
votes
0answers
53 views

Magnetic sensor preamplifier using op07

I am using this circuit to amplify a sensor signal (220mV p-p) to about 5Vp-p and measuring by microcontroller ADC: When I connect the input signal, the input voltage level goes up (changes from ...
0
votes
1answer
26 views

How to properly place AC current transducer sensor in the circuit

Hello i am going to setup current sensor like this (datasheet) in my home, and would like to know where is it proper to put these sensors in the circuit. Consider the two setup below: rent ...
0
votes
1answer
42 views

ensuring transducer (transmitter) and receiver polarity

I am trying to implement a simple phased array of 7 transmitters rated 40 kHz. I have a few receivers to measure the acoustic field generated to validate if it works. What is a simple way to measure ...
1
vote
1answer
43 views

Vibrating mesh transducer not nebulizing

Currently, I am trying to use a vibrating mesh transducer that's regulated using a high-voltage driver (100±5kHz, 65±5V), that's Grove Water Atomizer board. Two problems have been arising, which I've ...
0
votes
1answer
53 views

Reduce Power of High frequency output signal (40khz)

I want to try and make the output power of the following driver board adjustable. At full power it runs at 100watt I. The board itself does not have an option to reduce the power output. The output ...
0
votes
2answers
93 views

What is the type of this transducer?

I am working on how to use ultrasonic devices to inspect some products. I am completly new to this. After searching around the Internet and reading the specifications of this transducer, I only ...
3
votes
1answer
93 views

What to do with ground wire? [closed]

I have a few I/p transducers(which work on 4-20mA loop current) and I have made a single cable for all of them, they each have posititive, negative and Ground wires. The controller I have for these I/...
1
vote
0answers
118 views

What type of sensor connection would be the most suitable?

I have a pressure transducer with a 6 pin bayonet MIL-C-26482 male connector. I need to wire this connector with a 9 pin female D sub analog input connector and I am not sure how to do so. Schematic ...
1
vote
1answer
72 views

How to use a pressure sensor (transducer)? [closed]

I have this pair of pressure sensors that are addressable transducers. I want to use them for a project but I don´t really get how to get them to work. I´m used to the type of sensor that has 3 cables(...
0
votes
1answer
58 views

When using mA on analog devices, does the other wire go to 0V or Earth?

On the Schneider analog input module (link) we have IC, IV, IS, 0V and Earth terminals for a single channel. I've seen people connecting the signal wire from a transducer to the IC terminal and the ...
0
votes
1answer
49 views

Dummy Ultrasonic Transducer

I have several HC-SR04 modules which I wish to modify. There are two modifications in particular I want to ask about First, I am going to use two modules in parallel to determine location as opposed ...
1
vote
2answers
155 views

Filter Design for Charge Output Transducer (accelerometer)

I am designing a low-pass filter for a charge output transducer. The filter must be passive and provide a 2nd order Butterworth response, no more than 0.01dB of ripple in the passband is acceptable. ...
0
votes
3answers
134 views

Why is there a negative value on the scada when the analog input wire is disconnected from a field instrument?

I'm an apprentice electrician at an fmcg company. I've been seeing a trend recently, at the plant, where the scada actually reads a negative value instead of zero when a field device such as a ...
3
votes
1answer
76 views

What's the circuit diagram symbol for a variable reluctance sensor transducer?

I know I've seen the symbol before, it's something like a circle with an open triangle facing in the direction of current flow with a line through the middle. I'm specifically thinking of the ...
0
votes
1answer
46 views

Confusion with mapping a transducer range to a different output voltage range

A pressure transducer with a range +/-200Pa has both serial and analog outputs. I'm only interested in positive pressure besides sometimes the negative pressure needed to be measured when there is ...
1
vote
2answers
63 views

Is it possible to suppress oscillation at reactive load (non inverting amp)

I am using a non inverting amp with B class voltage follower to drive a piezoelectric transducer (used as sonar for fish scanning in boats). I am using trains of 20 sinewave pulses (85KHz), like the ...
0
votes
0answers
220 views

Help identify a water level sensor in humidifier

I have this ultrasonic humidifier that looks like this: It has a piezoelectric transducer that produces the vapor. It also has a sensor that turns it off when the water runs out. The unit now just ...
0
votes
1answer
43 views

Current Transducer Usage

I'm just a bit confused about this current transducer/sensor https://uk.rs-online.com/web/p/current-transducers/1383472/ Datasheet: https://docs-emea.rs-online.com/webdocs/15c5/0900766b815c5532.pdf ...
0
votes
1answer
95 views

How to conclude the necessity for unbalanced to balanced signal conversion for this scenario?

This is a bit specific system related question about simultaneous data-acquisition for several transducers. Therefore hope you don’t mind for the long intro and the question. It would be too implicit ...
0
votes
1answer
841 views

Any cheap and easy ways to isolate analog signals?

I want to isolate some transducer signals. Everything I've looked up is pretty expense/requires a lot of supporting circuitry which, because of volume, is not ideal. What is the easiest/cheapest way ...
0
votes
1answer
161 views

Ultrasonic transducer actual bandwidth for filtering

I have a pair of ultrasonic transducers with a "Thick Resonant frequency" of 975 kHz ±30kHz according to the data sheet. I did a frequency sweep test where I could see that they performed best at a ...
0
votes
1answer
48 views

Confusion understanding a transducer manual for wiring

In the Setra Model 270 transducer manual the following instructions are given: Do they mean that the excitation negative terminal should be separate with the output signal's ground? And the shield is ...
1
vote
1answer
53 views

Why is the damping RC used in these accelerometers?

What is the damping capacitor resistor couple used for at force balance accelerometers?: Can you explain what happens as a malfunction if it doesn't exist?
0
votes
1answer
165 views

Ultrasonic transducer for NDT short circuit

i have bought several transducer for NDT test from some manufacturers, but before i tried them, i checked that the impedance between the positive and negative transducer just around 2 Ohm, and it didn'...
3
votes
2answers
647 views

How to amplify a low Amplitude, High frequency signal from Ultrasonic Transducer?

I am working with some ultrasonic transducers, the receiver gets a signal of around 10 mVp-p at 125 kHz and for its purpose needs a gain of around 10. So far have a simple inverting OP-Amp setup, ...
0
votes
0answers
61 views

Transducer impedance decreased when Amplifier is connected

I am trying to measure beam pattern and impedance curve of a transducer from 70 to 120 khz. To get a nice plot, i have to use an amplifier(op-amp +-14Vs and Gain=14db) between a Signal Generator(Whose ...
0
votes
1answer
167 views

Purpose of PNP transistor in ultrasonic driver circuit

This question is related to my other question What is the purpose of Q2, R2, C1 and C6 in the circuit in the original question? When I remove these components from the simulation nothing appears to ...
1
vote
1answer
527 views

SPICE modelling output/input coupling in ultrasonic transducer driver

The real device is this. The LT SPICE model is here. The schematic of the driver part of the circuitry (omitting power supply circuitry and relay circuitry that basically switches the driver between ...