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3 votes
1 answer
226 views

Some questions about power supply noise and transducer wiring

A 24V SMPS power supply is used to create a +/-12V bipolar supply. This bipolar supply then powers this accelerometer transducer which converts small mechanical vibrations to amplified voltages. The ...
user1999's user avatar
  • 1,515
3 votes
1 answer
464 views

Unwanted noise in oscilloscope display

Hi I'm a beginner on using an oscilloscope and I'm sorry if my question may be repeated in other posts. I was working on a circuit with the following materials: (1) an Al plate (5mm thick) (2) a ...
J.Doe's user avatar
  • 31
3 votes
2 answers
2k 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, ...
Piers's user avatar
  • 31
2 votes
1 answer
365 views

Sonar single transducer element SNR vs array SNR

Background: I'm taking a flexible learning unit on radar and sonar systems in a vocational college for an assoc. degree level course. The teacher has given us a reading assignment: "Chapter 15 ...
My Other Head's user avatar
1 vote
1 answer
382 views

VCO generating a lot of electrical noise, picked up by ultrasonic transducer

In my setup, I have a VCO CD4046 Phase Locked Loop IC generating a square wave, and an ultrasonic transducer set that transmits and receives that setup. You can imagine it looking something like this. ...
HFOrangefish's user avatar
1 vote
1 answer
61 views

Will this electric guitar wiring scheme be noisy?

I want to wire my guitar using two SPDT switches for my pickup selector. This is so I can have four sounds: lower, upper, both in parallel, both in series. I'm concerned that when it's set to use ...
neenscrame's user avatar
0 votes
1 answer
733 views

DC-LVDT Output noise filtering

I am working with the DC-LVDT Omega 620-25 http://www.omega.com/pptst/LD620.html Manual: http://www.omega.com/Manuals/manualpdf/M4345.pdf Specs: http://www.omega.com/pressure/pdf/LD620.pdf I am ...
chaosmind's user avatar
  • 145