a signal output by the signal generator is taken as an analog signal for driving an electronic tachometer; the other way of output is sequentially connected with a counter and a digital display device; meanwhile, the counter is connected with a time sequence generator which is used for providing...
tachometer(11) with temperature measurement(10) high-precision(9) pocket(7) dual-channel(6) laser(6) four-channel(4) non-contact(4) multichannel(3) optical(3) for hazardous locations(3) with sound analyzer(2) explosion-proof(1) interferometer(1) ...
performance of both engines is monitored automatically by the tachometer control 108 in order to ensure that if one engine shuts down for some reason, the other engine is immediately shut down to prevent damage or injury, again as discussed above. When it is desired to cease operation, the on...