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ANALOG INDICATING TYPE DIGITAL TACHOMETERTAKATANI MASAYOSHI
TACH(tachometer) 转速计,转速表 TP(temperature probe) 温度传感器 TRIAC(triodes AC switch) 三极管交流开关 TTL(transistor-transistor logic) 晶体管一晶体管逻辑 TV(television) 电视 UART(universal asynchronous receiver transmitter) 通用异 步收发器 VCO(voltage controlled oscillator) 压控振荡器 ...
previously opened by a further null-crossing detector, the latter, the gate and the transformer being fed directly or indirectly from a single clock pulse generator, and said first null-crossing detector also receiving a signal proportional to the velocity of the analogue input, from a tachometer...
2.5.4Tachometer A DC Tachometer can be used on some drives for velocity control. The tachometer provides an analog DC voltage feedback signal that is related to the actual motor speed and direction. The drive subsequently adjusts the output current based on the error between the tachometer feed...
Figure 6.1 shows that there are two analog-to-digital converters (ADC) in the closed loop system that we will be implementing. One is used to read a variable reference that sets the motor speed. A second is used to read the motor speed tachometer. When working with time varying signals ...
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EDN - EDN -- 11.10.94 Digital tachometer avoids analog vices | EDNEDN Staff
Circuits which regulate fan speed can overcome these difficulties. The availability of motors with tachometer outputs facilitates the design of these circuits. The Basic Fan-Control Amplifier For some time now there have been integrated circuits (ICs) available that include a DAC (digital-to-analog ...
Over the years we’ve seen several projects that repurposed analog gauges of various types, often for showing computer performance, but they generally involved having to drive the galvanometers directly. That these tachometers can simply be fed a simple digital signal should make implementing them...