SU620937A1 - Single time interval meter - Google Patents

Description

The invention relates to electrical measuring equipment and can be used to measure the duration of a single time interval.

Single time interval meters are known, including pulse counters, an oscillator frequency generator, a delay line, coincidence circuits, triggers, and a decoder p. j.

A digital single time interval meter is known that contains a pulse counter, whose input is connected via a coincidence circuit to the generator output of an exemplary frequency, and an interpolator consisting of a partitioned delay line, whose outputs are connected to triggers through the first inputs of group matching circuits. the delay and the first group of the matching circuit is turned on at the output of the J2j matching circuit.

However, to obtain measurable values in the position code, it is necessary to use a decoder.

The aim of the invention is to obtain the values of the younger bits of the result in the positional code and to simplify the reference scheme of the measurement result.

To do this, a collection circuit and an interpolator trigger are inserted into the digital single-slot meter, the first input of the interpolator trigger is connected to the input Stop terminal, the second input with the second input of the control trigger and the output of the collection circuit, the output with the second inputs of the group matching circuit , the outputs of which are connected to the corresponding inputs of the collection circuit.

The drawing is a structural diagram of a digital meter for single time intervals.

Claims (1)

The digital single time slot meter contains an exemplary frequency generator 1 with an auto-tuning system 2, a matching circuit 3, a pulse counter 4, a control trigger 5, an interpolator 6 consisting of a multi-channel delay line 762, a co-channel co-operation 8-12 and a trigger 13 --17 registrar, collector circuit 18 and trigger 19 interpolator insertion. The first input of the generator of exemplary frequency 1 is connected to the auto-tuning 2 system, the second to the first input of the control trigger 5, the Output to the first input of the matching circuit 3. The first input of the circuit 3 is connected to the output of the trigger 5, the output of the pulse counter 4 and the delay lines 7 of the interpolator 6. The line input; L. Delay is connected to the first input of the first group matching circuit, and the outputs to the first inputs of the remaining group matching schemes 9-12. The second inputs of group matching schemes 8-12 are interconnected and connected to the output of trigger 19, and to the inputs of the collection circuit 18 and the first input trigger 13-17. The output of circuit 18 is connected to the second inputs of trigger 5 and 19. The first inputs of trigger 5 and 19 are connected respectively to the input terminals of the beginning and end of the intended time interval. Before starting the measurement, all element of the device is set to the zero state. With the arrival of the beginning of the measured time interval, the Start trigger 5 is set to one, thereby opening the coincidence circuit 3, and generator 1 is started. Counter 4: starts counting the pulses of the reference frequency. With the arrival of a pulse at the end of the measured time interval Stop, the trigger 19 is set to one state and opens a grunt match circuit 8-12. The closest pulse of the exemplary frequency through one of the circuits 8-12 sets the corresponding trigger 13-17 of the interpolator register I to the zero state of the trigger points 5 and 19. The pulse counter contains the high-order bits, and the trigger register 7 is the lowest-order bits measurement result. Claims of Inventions A digital single-time meter: lf intervals, containing an impedance counter, the input of which is connected through the coincidence circuit to the generator output of the reference frequency with auto-tuning, a control trigger, the output of which is connected to the second input of the coBnai day circuit, the first input is with the Start input terminal and an input of the generator of the reference frequency, and an interpolator, consisting of a partitioned delay line, the outputs of which are connected to the triggers through the first inputs of the group matching circuits, and the input is partitioned but the delay lines and the first group coincidence circuit are included at the output of the coincidence circuit, characterized in that, in order to obtain values of the lower bits of the result in the positional code and simplify the measurement result reference circuit, the collection and trigger circuit of the interpolator is introduced into it, the first input of the interpolator trigger is connected to the Stop input terminal, the second input is connected to the second input of the control trigger and the output of the collection circuit, the output is connected to the second inputs of the group matching circuits, the outputs of which enes to the corresponding input and collecting circuit. Sources of information {прин), taken into account during the examination: 1, and Il kdnn VM Digital measuring transducers and devices. M, Higher School, 1973, p. 17O, rice, 3.20. 2, Copyright certificate № 264229, cl. Q 04 T 1O / O4, 1968. i " % ek : . 9 ABOUT ", J 12 CD ..iT n I f I 11..Г m