Distance measuring method of magnetic induction switch

Abstract

The invention relates to the technical field of electronic testing, in particular to a distance measuring method for a magnetic induction switch. The method comprises the following steps: setting thelifting speed V of a test fixture, setting comparison judgment conditions in a parameter processing device, taking the magnetic induction switch by a mechanical arm, and fixing the magnetic inductionswitch on the test fixture; electrifying to start the test fixture, driving the magnetic induction switch to ascend and descend, recording the response time S of the magnetic induction switch, and calculating through a distance formula to obtain a response distance L; comparing and judging the parameters by the parameter processing device, if the test distance is greater than the minimum distanceof the magnetic induction reaction, determining the parameters to be qualified, otherwise, determining the parameters to be unqualified, and storing a judgment result and then feeding back the resultto the mechanical arm; and placing the magnetic induction switch in a classified way by the mechanical arm. According to the invention, through conversion between the response time and the lifting speed of the clamp, the effective reaction distance of the switch of each switch plate is effectively collected, and the purpose of detecting the induction distance while detecting whether the function of the magnetic induction switch is normal or not is achieved.

Description

Technical field [0001] The invention relates to the technical field of electronic testing, in particular to a distance measurement method of a magnetic induction switch. Background technique [0002] The magnetic induction switch includes a magnet and an induction coil arranged opposite to the magnet. The output end of the induction coil is connected with the input end of the switch circuit, and the output end of the switch circuit is connected in series with the input end of the power supply. [0003] See figure 1 When the magnetic field parallel to the sensitive direction of the magnetic induction switch sensor exceeds the operating point threshold BOP, the switch sensor outputs low level. When the magnetic field parallel to the sensitive direction of the magnetic induction switch sensor is lower than the release point BRP, the switch sensor outputs high level, the magnetic field The difference between the operating point and the release point is the return difference BH of the ...

AI Technical Summary

Problems solved by technology

[0005] However, this test method can only test whether the switching function of the magnetic induction switch is normal, and cannot measure the sensing distance of the magnetic induction switch. As a result, the products that have completed the test are sold to the market, and there are problems such as the sensing distance is too short or the sensing distance is not up to standard.

Images