SU462284A1 - Quantum current to frequency converter - Google Patents

Description

When a signal is sent from the control device to the connection of a quantum converter to the input current source, the output of amplifier 2 is a signal of a variable voltage, whose frequency is determined by the value of the converted current and the magnetic constant input circuit of the quantum frequency sensor.

The value of this frequency is determined by counting the number of | HM-pulses of the reference frequency over one or several periods of the signal of the measured frequency. After encoding and decoding the measurement results occurs (the change in the magnetic constant of the input circuit of the quantum frequency sensor so that the output frequency lies within the set interval (in the tolerance field). The coding of the measured frequency is performed by the counter 8, which is controlled by the circuit 7. Information from the counter 8 goes to the decoder 9, making the required change of the magnetic constant. A time interval equal to one or several half-periods of the measured frequency is Which counts the number of emulsions of the reference frequency, is formed by means of counter 5, circuit 4 and circuit 6. In counter 5, the required number of pulses of the measured frequency is counted and an overflow signal is generated, which is the signal for the end of the counting time signal. It reads the information code from counter 8, its output and the required switching of the magnetic constant of the input circuit of the quantum frequency sensor 1. Simultaneously with this overflow signal ithout circuit 6 opens the controllable switch 11 connects the frequency processing device to the output of the amplifier 2, and is formed to decoder

of these devices, the signal of a ShKal number or magnet1 constant value.

Upon completion of the process of converting this electrical signal in the control device, a command is generated to disconnect it from the quantum frequency sensor 1 and to reset both imiums counters to the Initial state.

Prevention Invention

A quantum current-to-frequency converter containing a quantum frequency sensor, an amplifier and a spectral lamp excitation generator, characterized in that, in order to increase the accuracy of conversion and increase the 1-1 range of convertible currents, it additionally contains a square pulse former controlled by

0 key, pulse generator of the reference frequency, pulse counters, negative circuit, decoder and control device, with the amplifier output connected to the first input of the controlled key and through the driver

5 square pulses - with the first input of the first matching circuit, the output of which is connected to the input of the first pulse counter, the output of which is connected via negative cxeiMy to the second input of the first matching circuit and to the second input of the controlled key, the first input of the second matching circuit is connected to the output the control unit, the second input with the output of the reference frequency emulsion generator, the third input with the input of the first pulse O | B, and the output of the second coincidence circuit is connected to the first input of the second pulse counter, the second the input of which is connected to the output of the first pulse counter, the output of the second counter of the imiuls is connected to the input of the deschiprator, the output of which is connected to the input of the quantum frequency sensor.