WIDE-RANGE VERNIER RECIRCULATING CONVERTER OF TIME INTERVALS TO DIGITAL CODE

摘要

FIELD: measurement equipment.;SUBSTANCE: converter consists of a start pulse recirculator, a stop pulse recirculator, the first and the second pulse counters, as well as an RS-trigger. With that, the start pulse recirculator includes an OR circuit, the first input of which is connected to a Start Pulse bus of the converter and to S-input of RS-trigger, the direct output of which is connected to the first input of the first AND circuit, and the inverse output of which is connected to the first input of the second AND circuit, the output of which is connected to the third input of the OR circuit and through an additional delay line to the second input of the OR circuit, the fourth input of which is connected to the output of the first AND circuit and to the counting input of the first pulse counter, and the output is connected to the first input of the third AND circuit, the output of which is connected to C-input of D-trigger and through the delay line of start pulse to the second inputs of the first and the second AND circuits. The stop pulse recirculator includes an OR circuit, the first input of which is connected to Stop Pulse bus of the converter and R-input of RS-trigger, and the output is connected to the first input of the AND circuit, the output of which is connected to the counting input of the second pulse counter, to D-input of D-trigger and through the delay line of stop pulse to the second input of the OR circuit, and the second input of the AND circuit is connected to the second input of the third AND circuit and to the inverse output of D-trigger, the R-input of which is connected to control inputs of the first and the second pulse counters and to Control bus of the converter.;EFFECT: improving conversion quick action.;2 dwg