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Motor winding resistance measuring device and instrument

A technology of winding resistance and measuring device is applied in the field of wall washer, which can solve the problems of high unit price of the bridge, complicated operation, and inability to measure the resistance of large motor windings, etc., and achieves the effect of simple use and reduction of recycling pollution.

Inactive Publication Date: 2020-02-11
MCC BAOSTEEL TECH SERVICE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Existing ordinary multimeters are usually unable to measure the resistance of large motor windings, while the unit price of traditional electric bridges is relatively expensive, the operation is complicated, and a large number of training courses are required before use, which cannot meet the current situation of on-site construction at all.

Method used

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  • Motor winding resistance measuring device and instrument
  • Motor winding resistance measuring device and instrument
  • Motor winding resistance measuring device and instrument

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Embodiment Construction

[0019] Embodiments of the present application are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in this specification. The present application can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present application. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0020] The embodiments of the present application will be described in detail below with reference to the accompanying drawings, so that those skilled in the art of the present application can easily implement them. The present application can be embodied in variou...

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PUM

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Abstract

The invention provides a motor winding resistance measuring device and instrument. The motor winding resistance measuring device comprises a constant-current control circuit, a low-pass filter circuit, a control chip, a display and drive circuit and a test clamp input circuit; the constant-current control circuit provides a high-stability current source for measurement; the test clamp input circuit is connected in series with a to-be-tested motor to obtain a measurement signal; and the analog measurement signal is converted into a digital signal by the low-pass filter circuit and the control chip, and the resistance of the to-be-tested motor is displayed by a nixie tube of the display and drive circuit. According to the measuring device and instrument, use is simple, users do not need complex training of bridge detection, measurement is completed automatically, a result is displayed in the form of numbers and can be read directly and convenient, any user can read the numbers accurately, and a drift error due to influence of environment and temperature is avoided. A built-in rechargeable lithium battery can be charged repeatedly, and is light and environment-friendly, and pollutioncaused by battery recovery is reduced.

Description

technical field [0001] The application relates to the technical field of wall washer lamps, in particular to a motor winding resistance measuring device and a motor winding resistance measuring instrument. Background technique [0002] Existing ordinary multimeters are usually unable to measure the resistance of large motor windings, while the unit price of traditional electric bridges is relatively expensive, the operation is complicated, and a large number of training courses are required before use, which cannot meet the current situation of on-site construction. Therefore, there is an urgent need for a comparative measuring instrument with a high precision and high stability constant current source that has a wide range of applications and can be used for on-site construction. Contents of the invention [0003] In view of the shortcomings of the prior art described above, the technical problem to be solved in the present application is to provide a motor winding resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/14
CPCG01R27/14
Inventor 夏成骏秦川孙金祥王希坤
Owner MCC BAOSTEEL TECH SERVICE
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