Tachometer Frequently Asked Questions
Question number FAQ-0921
I am using an LG-9200/TM-3130. I am measuring by attaching 25 small pieces of reflective stickers to a φ60 rotating body. I would like to know the suspected cause and solution for the following issue: I am monitoring the analog output (0-10 V) waveform from the TM on a memory recorder. While the pulse count waveform is output at regular intervals, the entire analog output waveform fluctuates up and down. (The fluctuation (up and down) varies in magnitude.)
Because the reflective stickers are not placed at equal intervals, the period is not constant, which may cause the entire analog output waveform to fluctuate up and down.
Reattach the reflective stickers precisely at equal intervals and check the analog output waveform.
Last updated: 2018-07-19