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Hi, I am trying to study on using a vibration sensor like this one.[Snip]Sorry, I couldn't link the PDF. So, I just posted it seperately.
My goal is to use this sensor to break a circuit of a motor when it gets to receive a certain vibration threshold so that the whole system of a machine can be safely stopped, therefore, preventing any phisical damage of a machine when it goes wrong, by sensing the vibration of a machine.
I've been thinking about how to use this vibration sensor to break AC motor power supply.This is what I came up with.http://www.flickr.com/photos/34955071@N02/3895893820/#sizes/o/
The relay shown in the drawing is this.http://pdf1.alldatasheet.com/datasheet-pdf/view/95519/ETC/JZX-18FF/ADC4Z3QD.htmlSo basically, I need to break the AC power connection when the vibration sensor triggers the N-Channel MOSFET, as a result, converting the normal close to normal open.Is this method workable?Will this breaking method stop the motor only for a moment when the vibration sensor gets the maximum threshold?
It seems that the table 1(LDT0 as vibration sensor) shown in the specification of LDT0, shows the example thresholds(please correct me if I am wrong) and I want to try out those all 4 criteria so that I can get the idea on how much vibration does it require to trigger the stoppage of the motor. But, please please advise me if such idea is not the right way to determe the certain allowable vibration amount.
[...] could you tell me what VR1, ZPD12 is, and how R1, VR1, C3 should be adopted for the 4 criteria shown in the table 1 of the LDT0 specification?