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A tooling system for AC analog measurement

A technology for testing tooling and analog quantities, applied in measuring devices, measuring electricity, measuring electrical variables, etc., can solve problems such as reducing production efficiency, unable to fully reflect various problems of analog quantity boards, etc. effect of overhead

Active Publication Date: 2018-09-11
NANJING INTELLIGENT APP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the test of the whole machine cannot fully reflect various problems in the production process of the analog quantity board, and since the device has been assembled during the whole machine test, if the quality problem of the analog quantity board is found during the test, the device must be dismantled again to solve the problem problem, which will greatly reduce production efficiency

Method used

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  • A tooling system for AC analog measurement
  • A tooling system for AC analog measurement
  • A tooling system for AC analog measurement

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Such as figure 1 As shown, the AC analog quantity test tooling system includes a lower computer device, a voltage power amplifier, a current power amplifier, and upper computer software.

[0045] Such as figure 2 As shown, the main modules of the lower computer device in the tooling system of this embodiment are the microprocessor, DA output and AD collection. The microprocessor is the main control module in the lower computer device, which is used to communicate with the upper computer, control the DA output and read the value collected by the AD.

[0046] During the test, the processing process in the lower computer device is described in detail as follows:

[0047] After receiving the two voltage output commands from the upper computer, the lower computer device controls the two DA modules to output the specified AC voltage values ​​respectively.

[0048] The DA output voltage is input to the voltage power amplifier and current power amplifier on the one hand, and input to ...

Embodiment 2

[0081] A device for AC analog quantity testing, comprising a lower computer device, a voltage power amplifier, a current power amplifier, a fixture and an upper computer software; the lower computer device, voltage power amplifier and current power amplifier are installed in the fixture, The connecting lines between the above devices and modules are also in the fixture.

[0082] The lower computer device has 2 voltage output channels and 1-20 voltage input channels, can output 2 voltages, and can measure 1-20 voltage inputs. The lower computer device also has 1 Ethernet port and 1 serial port, which can communicate with the upper computer using Ethernet and serial port.

[0083] The voltage power amplifier has a small voltage input terminal and a large voltage output terminal. It converts the input small voltage into a large voltage for output. The current power amplifier has a voltage input terminal and a current output terminal, which converts the input voltage into current for ...

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Abstract

The invention discloses a tooling system for test of alternating-current analog quantity. The tooling system comprises a lower computer device, a voltage power amplifier, a current power amplifier and upper computer software. The upper computer software serves as a control center of the tooling system; during test of alternating-current analog quantity, the lower computer device receives orders of the upper computer software to control two DA (digital / analog) circuits to output corresponding alternating-current voltage to the voltage power amplifier and the current power amplifier, high voltage outputted by the voltage power amplifier and current outputted by the current power amplifier are inputted into a voltage input channel and a current input channel of a to-be-tested board respectively, an output end of the to-be-tested board is connected into an AD (analog / digital) channel of the lower computer device, the lower computer device uploads a tested voltage magnitude value and a tested phase angle of each circuit of the AD channel to the upper computer software, and the upper computer software analyzes test results. By the aid of the tooling system for test of alternating-current analog quantity, whether the to-be-tested board has a problem of pseudo soldering or not, whether component soldering directions or parameters are correct or not and whether wiring of a mutual inductor is correct or not can be detected.

Description

Technical field [0001] The invention belongs to the field of AC analog quantity board detection in relay protection, and specifically relates to a tooling system used for AC analog quantity testing. Background technique [0002] The AC analog quantity board is commonly used in relay protection devices. It is an important board for measuring the amplitude and phase of AC voltage and current. In the production of AC analog volume board products, production testing is an important link, and the product can only be shipped after the test is qualified. In the traditional production test method, the test of the analog quantity board is included in the whole machine test, which is an overall function test performed after the entire device is assembled. However, the test of the whole machine cannot fully reflect the various problems that occur in the production process of the analog board, and because the device has been assembled during the test of the whole machine, if the quality pro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00G01R31/02
Inventor 张杭项茜茜
Owner NANJING INTELLIGENT APP