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Connector pin resistance automatic test equipment

An automatic test equipment and connector technology, applied in the field of aviation equipment, can solve problems such as easy test errors, small pin labels, human errors, etc., and achieve the effects of reducing maintenance costs, reliable and stable operation, and improving measurement speed

Pending Publication Date: 2020-04-17
大连长丰实业总公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the 38 branches to be tested are unevenly distributed in 7 groups of plugs (237 pins in total), each test needs to select 76 pins to be tested from the 237 pins for testing. The pin number is small, the distribution is irregular, and identification is difficult. It takes about 40 minutes to complete the detection of 38 branches. During the test, it is very easy to make test errors, and the workload of repeated measurement is heavy. Unnecessary human errors are likely to occur, which seriously affects the product. repair quality

Method used

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  • Connector pin resistance automatic test equipment

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Embodiment Construction

[0033] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0034] This embodiment provides a connector pin resistance automatic test equipment, see the attached figure 1 , including: microcontroller, power module, voltage amplifier, signal source, relay, LCD display module and key module;

[0035] See attached Figure 5 , the connection relationship of the wires to be tested is as follows: 38 wires are divided into five groups, the first group includes 14 wires, and the 14 wires are connected end to end to form 2 endpoints and 13 intermediate points, so that the 2 endpoints are respectively A1 and A15, the order of 13 intermediate points is A2, A3, A4, A5, A6, A7, A8, A9, A10, A11, A12, A13, A14; the second group, the third group, and the fourth group are the same, all Including 3 wires, 3 connected end to end, forming 2 endpoints and 2 intermediate points in total, so that the 2 endpoints are respectively B1 a...

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Abstract

The invention discloses connector pin resistance automatic test equipment which comprises a microcontroller, a power supply module, a voltage amplifier, a signal source, relays and an LCD display module. Middle points or end points, distributed at intervals, of i or more wires are connected with COM ends of the front-end relays in a one-to-one correspondence mode. The other middle points or end points are respectively connected with COM ends of the rear-end relays in a one-to-one correspondence manner. The signal source is used for inputting a constant current to a wire of a current to-be-measured resistor. The voltage amplifier is used for measuring the analog voltage at the two ends of the wire of the current to-be-measured resistor, amplifying the analog voltage and transmitting the amplified analog voltage to the microcontroller. The microcontroller calculates the resistance value of the wire of the current to-be-measured resistor, sends the resistance value to the LCD display module, and controls the relays at the two ends of the wire of a next to-be-measured resistor to be closed at the same time, thereby realizing resistance measurement of the wire of the next to-be-measuredresistor. The equipment can improve the measurement precision, improve the measurement speed, and improve the work efficiency.

Description

technical field [0001] The invention belongs to the technical field of aviation equipment, and in particular relates to an automatic testing device for connector pin resistance. Background technique [0002] The avionics products assembled on the aircraft are almost all cross-linked through the mounting frame to complete specific functions. The conductivity of the cables inside the mounting frame directly affects the performance of the product. Bad repair inspection is a very important part of aircraft overhaul. [0003] During the overhaul of military aircraft in aviation repair enterprises, most of the detection of the resistance value of a product mounting frame is performed manually. The staff use the two probes of the digital micro-ohmmeter to click the two ends of the wires to be tested each time. After testing the resistance value of one line, they manually Switch to the next branch for testing. A total of 38 branch resistances need to be tested (each branch should n...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02G01R31/54
CPCG01R27/02
Inventor 林德强张璐刘洪海齐广志
Owner 大连长丰实业总公司
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