| Electronics > Beginners |
| Are there non-contact vibration sensors for Arduino or PC? |
| (1/4) > >> |
| engineheat:
I need to sense vibration of an object, but I can't use accelerometers or piezo sensor because those requires touching the object, which is impractical in my application. I hope to use an optic based approach, or any other method that can sense the degree of vibration without contact. I need to be able to feed the data into an Arduino or a PC. I don't want to have to buy a big/expensive industrial type device. Size and price matters. However, I can place the sensor very close (millimeters) to the object. Any ideas? thanks |
| MavMitchell:
Any idea of the frequency and amplitude of the vibration. Is the body metal.. |
| jazper:
Frequency and amplitude matter.. accelerometers on a membrane could work (think a speaker cone) A microphone could work depending on frequency.. or ultrasonics if the amplitude is high.. |
| jazper:
http://www.warsash.com.au/products/vibration-measurement/LASER-DOPPLER-VIBROMETRY.php https://en.wikipedia.org/wiki/Laser_Doppler_vibrometer https://www.sciencedirect.com/science/article/pii/S0041624X97001029 |
| David Hess:
Optical interferometry can be used to remotely measure vibration. Capacitance sensing could also work which means reluctance sensing is a possibility also. |
| Navigation |
| Message Index |
| Next page |