Portable multiplication period signal generating device

Abstract

The invention discloses a portable multiplication period signal generating device. The portable multiplication period signal generating device comprises a signal generating device, the signal generating device comprises a signal generating body and a signal control board, and a multiplication period signal generating module is arranged in the signal generating body. The multiplication period signal generation module comprises a period gear control circuit, an exponential voltage generation circuit, a pulse period generation circuit and a current period generation circuit, the current period generation circuit is electrically connected between the exponential voltage generation circuit and the pulse period generation circuit, and the exponential voltage generation circuit is used for generating exponential voltage; the exponential voltage outputs a pulse period signal through the pulse period generating circuit, and the exponential voltage outputs the exponential current through the current period generating circuit. According to the portable multiplication period signal generation device, generation of pulse period signals can be achieved only through a pure hardware circuit, and the test reliability of the signal generation device is improved.

Description

technical field [0001] The invention relates to the technical field of nuclear measurement, in particular to a device for carrying out the portable test of the nuclear measurement instrument system outside the nuclear power plant and realizing the performance detection of the periodic signal of the nuclear measurement instrument system outside the nuclear power plant. Background technique [0002] The extra-reactor nuclear measuring instrument system is one of the important systems directly related to the safety of the reactor. An important function of the extra-reactor nuclear measuring instrument system is to calculate the doubling period of the nuclear power of the reactor. The calculation result of the doubling period can represent the The rising or falling speed of nuclear power, if the rising speed is too fast, it will affect the safe operation of the reactor. [0003] At present, in the design of the external nuclear measuring instrument system, the pulse signal colle...

AI Technical Summary

Problems solved by technology

[0005] (1) Microprocessor, single-chip microcomputer or FPGA design is required, the peripheral circuit construction is relatively complicated, the device cost is high, the software development cycle is long, and the maintenance cost is high

[0006] (2) The human-computer interaction method uses a display screen, which has high device cost, large device size, and low portability

[0007] (3) The pulse period signal after V / F conversion lacks processing, and the actual output signal of the detector is not further simulated

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