Tuesday, August 23, 2011

Avionics Bending: %RPM N1 Tachometer Frequency Test


Below is a short video of sending five different tachometer frequencies to the the %RPM N1 Indicator. This is work in progress but should give you a rough idea of what the actual indicator performance will look like:


In the example above the instrument runs of a 115V 400Hz Inverter and draws about 600mA. The frequency is a 5V differential square wave.

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