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Description: The Minisense 100 from Measurement Specialties is a low-cost cantilever-type vibration sensor loaded by a mass to offer high sensitivity at low frequencies. Useful for detecting vibration and 'tap' inputs from a user. A small AC and large voltage (up to +/-90V) is created when the film moves back an forth. A simple resistor should get the voltage down to ADC levels. Can also be used for impact sensing or a flexible switch.

Comes with machine pins that allows for horizontal mounting.

We've seen this used as great musical inputs.

Features:

  • Flexible PVDF Piezo Polymer Film
  • Wide dynamic range
  • Laminated for higher voltage output
  • Breadboard friendly leads

Documents:

Comments 12 comments

  • Hmmm, after looking at my car again today and noticing all the new paint chips on the doors and tyre marks on the bumpers got me to thinking about how I might be able to use these vibration sensors to at least scare the heck out of the people responsible. An idea maybe?

    • I have the same idea with a cool siren I bought from RadioShack, but is this sensitive enough to feel someone rocking my truck?

      • Depending on how you trigger your siren, I doubt it should be a problem. I mounted it inside a wind turbine model in my office and it is picking up me walking around in the room.

  • For all of you who want to know how to connect this vibration sensor to an arduino, here’s a good link. The arduino can be interfaced with this vibration sensor to do an action such as turn on an LED when the sensor detects vibration. Here is the link to the Vibration Detector Circuit

  • I bought this and hooked it up to a LED but I can’t seem to make it light up. Tried it w/the very tiny lilypad LEDs, too. I’ve tried the same thing w/the round piezo sensor with success, so I know it’s not the bulbs. What am I doing wrong? I’ve tapped, bent, and hummed into the sensor.

    • My guess is that you are getting either much too high of a voltage to properly run the LEDs, or the current in your circuit isn’t high enough to actually turn the LEDs on. Test the readings you are getting out of this with a multimeter- that will likely help you narrow down the problem.

  • I’m a big n00b, but what resistor values should i use for this with an arduino or attiny chip?

  • What’s the difference between the horizontal and vertical? Does it really make a difference?

  • I am doing an arduino based project that measures bow vibration to determine a correct brace height (distance from string to where you hold the bow). Would this be too sensitive and break? I guess it is cheap enough to just try it out. Any thoughts?

  • Any examples on how to use these?

    • There’s a couple of notes in the comments for the related Piezo vibration sensor products. Check ’m out :)

  • Hook one of these up to an amp, Have the amp power a ridiculously loud tweeter :P. I personally have read you can use these and a sheet of glass to turn a monitor into a touchscreen and look forward to trying that out.


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