Electroprobe and test circuit thereof
A technology of test pen and detection circuit, which is applied in the direction of measuring current/voltage, indicating the existence of current/voltage, measuring electricity, etc. It can solve the problems of low anti-interference, inconvenient operation, large volume, etc., and achieve fast judgment and convenient use , easy to use effect
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[0052] In order to solve the technical defect in the prior art that shifting operation is required when performing various tests, which makes the operation inconvenient for users, the present invention provides a tester with easy operation and a test circuit inside the tester. The following will be introduced through specific embodiments.
[0053] The invention provides an electric test pen, which includes a pen body 1 , a test needle 2 , a light emitting tube 3 , an electric wire 4 and an alligator clip 5 . The test needle 2 is set at one end of the pen body 1, and the light emitting tube 3 is set at the other end of the pen body. The alligator clip 5 is connected with the pen body 1 through the wire 4 . A detection circuit is arranged inside the pen body 1 . The test pen in the present invention has a simple structure, and the load can be detected through the test pin. When detecting the load, it is mainly realized through the internal detection circuit. The principle of...
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