CN212433368U - Device for testing on-off performance of multi-strand cable - Google Patents

Abstract

The utility model provides a stranded cable break-make performance test device which characterized in that: the system comprises a single chip microcomputer controlled by a key, an indicating LED and a program-controlled constant current source which are arranged at the signal output end of the single chip microcomputer, an analog-digital converter arranged at the signal input end of the single chip microcomputer, and an I/O matrix which is arranged at the electrical output end of the program-controlled constant current source and the signal input end of the analog-digital converter. The defects that the welding position of the cable cannot be rapidly and accurately judged to be good in the existing detection process, and multiple cables cannot be detected simultaneously are overcome.

Description

Device for testing on-off performance of multi-strand cable

Technical Field

The utility model relates to a device of strand cable break-make capability test can detect simultaneously many as required whether weld with the cable welding point on, whether have continuous welding, other circumstances that influence normal use such as rosin joint.

Background

At present, a company can only adopt a multimeter to test when measuring the welding goodness of a multi-core cable. The mode can not test the welding quality, and can not quickly and accurately judge whether the wire joint and the plug welding part have the problems of insufficient welding, continuous welding and the like. And more cables cannot be simultaneously detected, so that the working efficiency is very low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a strand cable break-make capability test has overcome the unable good nature of accurately judging the cable welding department rapidly among the current testing process, and can not detect simultaneously many not enough with the cable, and it can not only accurately judge the break-make and the good nature of cable welding point fast to can detect simultaneously many with the cable as required.

In order to achieve the above purpose, the utility model provides a following technical scheme: this stranded cable break-make capability test device, its technical essential is: the system comprises a single chip microcomputer controlled by a key, an indicating LED and a program-controlled constant current source which are arranged at the signal output end of the single chip microcomputer, an analog-digital converter arranged at the signal input end of the single chip microcomputer, and an I/O matrix which is arranged at the electrical output end of the program-controlled constant current source and the signal input end of the analog-digital converter.

The utility model has the advantages that: except that the on-off of the cable welding of examination, can also detect out whether the splice has other problems such as continuous welding, rosin joint, and can carry out the detection of many with the cable simultaneously. The keys are adopted to control the opening and closing of the whole system, the single chip microcomputer controls the work of the whole system, the keys are closed, after the system works, the single chip microcomputer firstly starts the program-controlled constant current source to supply power to the IO matrix, after the detection is finished, the collected node voltage passes through the ADC and then is transmitted back to the single chip microcomputer, and the single chip microcomputer controls the indication LED to display the measurement result after processing. The utility model discloses convenient to use is swift, when giving more accurate testing result, promotion work efficiency that can be very big.

Drawings

Fig. 1 is a block diagram of the present invention.

Detailed Description

The present invention will be described in detail with reference to fig. 1 by way of specific examples. The testing device for the on-off performance of the stranded cable comprises a single chip microcomputer controlled by a key, an indicating LED and a program-controlled constant current source which are arranged at the signal output end of the single chip microcomputer, an analog-digital converter arranged at the signal input end of the single chip microcomputer, and an I/O matrix which is arranged at the electrical output end of the program-controlled constant current source and the signal input end of the analog-digital converter.

When the welding wire is used, the button controls the starting of a single chip microcomputer (STM 32F103VET 6), the single chip microcomputer controls a program-controlled current source to supply power to an I/O matrix, the node voltage = constant current R, and R is determined by the cable welding condition. Therefore, the node voltage can reflect the conducting contact state of the cable, namely the welding goodness of the cable. The node voltage is transmitted to a single chip microcomputer through an analog-digital converter (ADC), after budget processing, the single chip microcomputer controls each indication LED to display the detection result of the multi-cable, and the purpose of simultaneously completing the measurement of the multi-cable can be achieved.

Claims (1)

1. The utility model provides a stranded cable break-make performance test device which characterized in that: the system comprises a single chip microcomputer controlled by a key, an indicating LED and a program-controlled constant current source which are arranged at the signal output end of the single chip microcomputer, an analog-digital converter arranged at the signal input end of the single chip microcomputer, and an I/O matrix which is arranged at the electrical output end of the program-controlled constant current source and the signal input end of the analog-digital converter.

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