Detection device for dynamical contacting impedance of magnetic reed pipe and detection method thereof

Abstract

The invention discloses a detection device for dynamical contacting impedance of magnetic reed pipe and a detection method thereof. The device comprises a power supply, a computer, software, a digitalstorage oscilloscope card, a microprocessor, an electromagnetic valve controller, a signal generator, a tool and an air cylinder, wherein the microprocessor controls test actions of the whole detection device through communication between the microprocessor and the computer, and the electromagnetic valve controller converts electronic control signals to control signals suitable for the air cylinder after receiving the electronic control signals emitted by the microprocessor to enable the air cylinder to do relative motion; after the signal generator connected with the microprocessor generatesa consecutive special waveform to a test coil in the tool, the digital storage oscilloscope card collects waveform signals of the magnetic reed pipe matching with the computer, and the software of the computer records and analyzes the collected waveform signals of the magnetic reed pipe. The device can detect a defective product of the magnetic reed pipe with abnormal waveform and an attached extraneous matter, and has the advantages of simple structure, convenient use, and the like.

Description

Technical field [0001] The invention relates to a magnetic reed tube detection device and a detection method, in particular to a magnetic reed tube dynamic contact impedance detection device and a detection method. Background technique [0002] The reed switch is an airtight sealed magnetic control mechanical switch, which can be used as a magnetic proximity switch or relay. It is smaller in size, higher in speed, and longer in working life than ordinary mechanical switches. Compared with electronic switches, it has It has the characteristics of strong resistance to load impact and high working reliability. It has been widely used in mobile phones, satellite antennas, water dispensers, coffee machines, humidifiers, program-controlled switches, photocopiers, washing machines, etc. The magnetic reed switch is a magnetic field-driven switch. It consists of a pair of elastic magnetic reeds made of magnetic materials. The pressure-processed magnetic reeds overlap each other with a cer...

AI Technical Summary

Problems solved by technology

Among them, foreign matter in the contact directly affects the quality level of the product, so that the reed switch cannot work normally.

These defects occur during the encapsulation process, and will remain in the glass tube after encapsulation and cannot be removed. The most serious problem is that there is no suitable method to detect defective reed switch products, which will cause them to fail during the application process.

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