CN105137219A - Test method for detecting multi-turn coils by means of pulse - Google Patents

Abstract

The invention discloses a test method for detecting multi-turn coils by means of pulse. Testing is performed by using a standard sample, and the test result is stored to act as a standard test result; then a tested product is connected on a test machine so that a test result is obtained; and finally the test result is compared with the standard test result. The test method is simple and high in visibility and can be directly applied to inductor production manufacturers. Besides, independent operation of the test method can be performed without additional purchasing of other auxiliary equipment so that product yield rate is effectively enhanced and test cost is saved.

Description

A kind of apply pulse detects the method for testing of multiturn number coil

Technical field

The present invention relates to the method that high-frequency transformer is detected, be specifically related to the method for testing that a kind of apply pulse detects multiturn number coil.

Background technology

In the prior art, high-frequency transformer can produce following problem in process of production: the yield 1, caused because quality of enamelled wire is bad is too low.2, technique is immature in process of production, and insulation distance is little but can not be found, and produces the problem of short circuit.3, due to product open circuit, line bag temperature rise after upper machine, causes potential danger to production.4, produce the phenomenon of burning line bag, add production cost, cost is too high.

Summary of the invention

In order to solve the problems of the prior art, being badly in need of a kind of method that produced product is detected, the invention discloses the method for testing that a kind of pointed apply pulse detects multiturn number coil.

Technical scheme of the present invention is as follows:

Apply pulse detects a method of testing for multiturn number coil, comprises the steps:

(1), application standard sample is tested, and is used as standard testing result under its test result being stored;

(2), by test product be connected on test machine, obtain test result;

(3), by test result and standard testing result contrast, if the function curve of test result is consistent with the function curve of standard testing result, then product is by test; If the function curve of the function curve of test result and standard testing result is inconsistent, then product is not by test.

Advantageous Effects of the present invention is:

Method of testing of the present invention is simple, and intuitive is strong, and for production, inductor producer can directly apply, and can oneself independent operation, does not need additionally to buy other utility appliance, effectively improves product yield, and save testing cost.

Accompanying drawing explanation

Fig. 1 is circuit diagram used in the present invention.

Fig. 2 is the function curve diagram of standard testing result.

Embodiment

Apply pulse of the present invention detects the method for testing of multiturn number coil, comprises the steps:

(1), application standard sample is tested, and is used as standard testing result under its test result being stored;

(2), by test product be connected on test machine, obtain test result;

(3), by test result and standard testing result contrast, if the function curve of test result is consistent with the function curve of standard testing result, then product is by test; If the function curve of the function curve of test result and standard testing result is inconsistent, then product is not by test.

Fig. 1 is circuit diagram used in the present invention.In Fig. 1, Ci is tester internal capacitance, and Cc is survey line capacity, and Cw is coils from parallel connection of coils capacity, is connected on herein by institute's test products.R is energy ezpenditure equivalent parallel resistance.At SW1 place to a square wave, the exportable test result of its output terminal.

Fig. 2 is the function curve diagram of standard testing result.In the comparison process of curve, note the several key points in figure: the natural resonance cycle 3 of pulsation output 1, decay para-curve 2, coil and survey line and the end point 4 exported of pulsing, after the end point 4 that pulsation exports, the natural resonance of coil and survey line starts.

When carrying out test result and standard testing result contrasts, there will be two kinds of situations, and in its a period of time, the function curve of test result and standard testing result is different, it two is that test result is identical with the function curve of standard testing result, but the cycle is variant.Both of these case all represents test failed sample.

Above-described is only the preferred embodiment of the present invention, the invention is not restricted to above embodiment.Be appreciated that the oher improvements and changes that those skilled in the art directly derive without departing from the spirit and concept in the present invention or associate, all should think and be included within protection scope of the present invention.

Claims (1)

1. apply pulse detects a method of testing for multiturn number coil, it is characterized in that, comprises the steps:

(1), application standard sample is tested, and is used as standard testing result under its test result being stored;

(2), by test product be connected on test machine, obtain test result;

(3), by test result and standard testing result contrast, if the function curve of test result is consistent with the function curve of standard testing result, then product is by test; If the function curve of the function curve of test result and standard testing result is inconsistent, then product is not by test.