Method and FPGA (Field Programmable Gate Array) device for performing multi-channel digital frequency measurement

Abstract

The embodiment of the invention provides a method and an FPGA (Field Programmable Gate Array) device for performing multi-channel digital frequency measurement. The method for performing the multi-channel digital frequency measurement comprises the following steps of: acquiring a measuring signal of a multi-channel tested instrument through an FPGA; performing counting measurement on the measuring signal by using a frequency counting module in the FPGA to acquire a measuring result; and reporting the measuring result to an upper computer. The FPGA device for performing the multi-channel digital frequency measurement comprises a frequency counting module and a serial port communication module, wherein the frequency counting module is used for acquiring the measuring signal of the multi-channel tested instrument through the FPGA and performing the counting measurement on the measuring signal to acquire the measuring result; and the serial port communication module is used for reporting the measuring result to the upper computer. The embodiment of the invention can provide a technical implementation scheme for realizing a multi-channel digital frequency meter with low cost. The method and the FPGA method have the characteristics of high operability, flexible system structure logic unit, high integration and the like and can fill the blank of multi-channel frequency detection of petroleum apparatus in China.

Description

technical field [0001] The invention relates to the technical field of instrument digital detection, in particular to a method for multi-channel digital frequency measurement and an FPGA device. Background technique [0002] Multi-channel digital frequency meters are used in many fields such as astronomy, physics, and biomedicine. As a detection device for petroleum instruments, it also has a large application space in the petroleum and petrochemical industry. With the in-depth development of independent research and development of petroleum instruments and equipment, sensor products such as pressure gauges and thermometers suitable for underground working environments in China have developed rapidly, and the demand for corresponding petroleum instrument testing equipment has also increased significantly. Due to the lack of supporting testing equipment in the market, domestic petroleum instruments Finished product inspection is inefficient. [0003] The multi-channel digita...

AI Technical Summary

Problems solved by technology

In the past, high-precision instruments and equipment in my country's petroleum and petrochemical fields mainly relied on imported products from foreign petroleum instrument manufacturers, which were often expensive and greatly increased production costs.

In recent years, with the promulgation of the country's encouraging policy on research and development of my country's independent intellectual property rights, increasing investment in independent research and development of petroleum instruments and equipment has driven the rapid development of domestic downhole instrument research and development such as high temperature and high pressure resistance, high precision pressure, and thermometers....

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