Compact Peripheral Interconnect Bus Board

Abstract

The invention provides a CPCI bus board, which includes an MCU and a first measurement unit. The first measurement unit includes a high-voltage recovery module, a leakage current recovery module, a high-voltage generator module, and a leakage current balance bridge module; the high-voltage generator module is used to generate a set value voltage and apply it to the coil of the solenoid valve under test; the high-voltage recovery module The module is used to collect the voltage of the casing of the solenoid valve under test, and sends the collected first data to the MCU; the leakage current balance bridge module is used to collect the leakage current of the casing of the solenoid valve under test, and convert the leakage current into The voltage obtains the second data, and sends the second data to the leakage current recovery module; the leakage current recovery module is used to send the second data to the MCU; the MCU is used to determine the insulation of the solenoid valve under test according to the first data and the second data Features; the above modules adopt independent floating design. The CPCI bus board provided by the embodiment of the present invention improves the measurement accuracy, reliability and anti-interference ability of the board.

Description

technical field [0001] The invention belongs to the technical field of communication, and in particular relates to a compact peripheral interconnection bus board. Background technique [0002] With the advancement of science and technology, test equipment began to develop in the direction of miniaturization and specialization. Compact Peripheral Component Interconnect (CPCI for short) bus products have the advantages of fast speed, small size, high test accuracy, modularization, etc., and are recognized as one of the most promising buses. CPCI bus is widely used in aerospace testing and industrial automation testing and other fields. Solenoid valves are the basic components in aerospace equipment, and the ground test equipment should be able to quickly, accurately and highly reliably test and measure the basic characteristics of the solenoid valves of the single machine under test. The existing compact peripheral interconnection bus boards used for testing the basic charac...

AI Technical Summary

Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a compact peripheral interconnection bus board to solve the problems of low accuracy and poor real-time performance when the compact peripheral interconnection bus board is used for solenoid valve characteristic testing in the prior art

Images