Simple test device and method for conducted disturbance voltage of hand-held electric tools
A technology of electric tools and conduction disturbance, which is applied in the field of simple test devices for conduction disturbance voltage of hand-held electric tools, can solve the problems of long test period and high cost, and achieve the effects of good consistency, low cost and reduced impact
Active Publication Date: 2017-02-08
ZHEJIANG INST OF QUALITY INSPECTION SCI
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Problems solved by technology
The test of this project requires the use of expensive equipment such as receivers, artificial power networks, simulated hands, and shielding rooms, which are expensive and have a long test cycle
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0020] Such as figure 1 As shown, the present invention is a simple test device for conduction disturbance voltage of a hand-held electric tool, including: a box body 1, a spectrum analyzer 2, a voltage probe 3, a switch 4, a socket 5, an analog hand 6, an alligator clip 7, and a test line 8 and matching load 9; the voltage probe 3, the analog hand 6 and the matching load 9 are placed in the box body 1, the spectrum analyzer 2, the switch 4 and the socket 5 are embedded in the box body 1, and the spectrum analyzer 2 is connected to the voltage probe 3 , the other end of the voltage probe 3 is connected to the switch 4, and the three switching ends of the switch 4 can be respectively connected to the neutral line socket and the live wire socket of the matching load 9, the socket 5; 510Ω±10% resistors are connected in series; there are two power ports, a groun...
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The invention discloses a simple device and a method for testing the conduction disturbance voltage of a handheld electric tool. The device comprises a box body, a frequency spectrometer, a voltage probe, a switch, a socket, a stimulant hand, an alligator clip, a test line and matched load, wherein the frequency spectrometer is connected with the voltage probe, the other end of the voltage probe is connected with the switch, and the three switching ends of the switch can be respectively connected with the matched load, as well as a zero line jack and a live line jack of the socket; the stimulant hand consists of a capacitor and a resistor which are connected in series with each other; both the socket and the frequency spectrometer are connected with commercial power, and the other end of the resistor in the stimulant hand and the grounding end of the frequency spectrometer are grounded; one end of the test line is connected with the capacitor, and the other end of the test line is connected with the alligator clip. The simple device and the method have the advantages of low cost, no needed shielding room, high speed and higher accuracy. The method has better consistence with the method regulated in the national standard, is applicable to enterprises' online rapid detection, diagnostic test and law-enforcing departments' on-site detection and law enforcement.
Description
technical field [0001] The invention relates to the field of electric tool testing, in particular to a simple testing device and method for the conduction disturbance voltage of a hand-held electric tool. Background technique [0002] The electromagnetic compatibility performance of power tool products is tested by the national standard GB4343.1, and the 150kHz-30MHz disturbance voltage item is often unqualified. The test of this project requires the use of expensive equipment such as receivers, artificial power networks, simulated hands, and shielding rooms, which are expensive and have a long test cycle. Contents of the invention [0003] The object of the present invention is to provide a simple test device and method for the conduction disturbance voltage of a hand-held electric tool in view of the deficiencies in the prior art. [0004] The purpose of the present invention is achieved through the following technical solutions: a simple test device for the conduction ...
Claims
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IPC IPC(8): G01R31/00G01R19/165
Inventor 金勇
Owner ZHEJIANG INST OF QUALITY INSPECTION SCI