Method for detecting contact pressure of magnetic latching relay
A technology of a magnetic latching relay and a detection method, applied in the detection field, can solve the problems of unfavorable product quality control, poor consistency, and low accuracy, and achieve the effects of improving the inspection level, ensuring the quality, and improving the detection accuracy.
Inactive Publication Date: 2013-01-23
CHINA JILIANG UNIV
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Problems solved by technology
Since this pressure detection method relies on artificial feeling and experience, the accuracy is low and the consistency is poor, which is not conducive to the control of product quality.
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[0012] like figure 1 and figure 2 As shown, the present invention provides a magnetic latching relay contact pressure detection method, which is characterized in that it includes the following steps: connecting the moving reed terminal a2 and the static reed terminal a1 of the magnetic latching relay 2 to the on-off detection module Connect the corresponding a2 and a1 interfaces of the circuit; push the magnetic latching relay 2 in the direction of the probe 1 to make the moving reed gradually separate from the static reed; transmit the thrust value on the current moving reed to the force-measuring module through the probe 1; the force-measuring module will The thrust value is converted into an electrical signal; the electrical signal is sent to the core control module connected to the force measuring module for analog-to-digital conversion; once the moving reed and the static reed of the magnetic latching relay 2 are disconnected, the core control module passes the on-off T...
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The invention discloses a method for detecting the contact pressure of a magnetic latching relay, which is characterized by comprising the following steps of: respectively connecting a dynamic spring plate terminal and a static spring plate terminal of the magnetic latching relay with corresponding interfaces of an on-off detection module circuit; pushing the magnetic latching relay along the direction of a probe to enable a dynamic spring plate to gradually break away from a static spring plate; transferring a thrust value on the current dynamic spring plate to a force measurement module through the probe; converting the thrust value into an electric signal through the force measurement module; transmitting the electric signal to a core control module connected with the force measurement module to carry out analog to digital conversion; once the dynamic spring plate and the static spring plate of the magnetic latching relay are disconnected, immediately acquiring an off signal and recording the thrust value at the off moment by the core control module through an on-off signal acquiring module, wherein the thrust value is the pressure value of a contact of the magnetic latching relay; and displaying the pressure value through a display module connected with the core control module. The method for detecting the contact pressure of the magnetic latching relay can be used for improving the detection precision and is beneficial to the control of the quality of the magnetic latching relay of an enterprise.
Description
technical field [0001] The invention relates to detection technology, in particular to a method for detecting contact pressure of a magnetic latching relay used in an electric energy meter. Background technique [0002] The contact pressure of the magnetic latching relay is a key quality parameter of the magnetic latching relay. At present, there is no method to accurately detect the contact pressure of the magnetic latching relay in the manufacturing process of the electric energy meter. The general method is to move the reed by hand, feel the pressure, and then determine whether it meets the requirements for use. Since this pressure detection method is carried out by artificial feeling and experience, the accuracy is low and the consistency is poor, which is not conducive to the control of product quality. Contents of the invention [0003] Purpose of the present invention: [0004] A magnetic latching relay contact pressure detection method that can solve the above pr...
Claims
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IPC IPC(8): G01L1/22
Inventor 洪涛卢玉凤刘钢海郑路宋明飞
Owner CHINA JILIANG UNIV