EMI disturbance power detection device and method based on laser guidance

Abstract

The invention discloses EMI disturbance power detection equipment and method based on laser guidance, and the equipment comprises an absorption clamp guide rail (60) which is laid on a test bench (10), an absorption clamp (20) which is disposed on the absorption clamp guide rail (60), a measurement wire guide rail (70), a measurement receiver (30) which is connected with the absorption clamp (20) through a measurement wire (40), and a laser transmitter (80) which is disposed on the absorption clamp (20). The laser is perpendicular to the absorption clamp guide rail (60); the laser guidance equipment (90) is arranged on the measuring electric wire guide rail (70) opposite to the laser transmitter (80), and is used for receiving a laser signal transmitted by the laser transmitter (80) and driving a mechanism with a measuring electric wire to synchronously move with the absorption clamp (20); wherein a measuring wire section between the absorption clamp (20) and the laser guidance equipment (90) is kept vertical to the absorption clamp guide rail (60).

Description

technical field [0001] The invention relates to the technical field of EMI (Electro Magnetic interference, electromagnetic interference) detection, in particular to a laser-guided disturbance power detection device and method. Background technique [0002] Household appliances, electric tools and similar appliances have antenna radiation effects from power lines or connecting lines. The quality inspection center conducts an EMI disturbance power test on the product before the product leaves the factory in accordance with the quality inspection test standard to check whether the product meets the quality inspection standard. [0003] The existing test system composed of commonly used disturbance power detection equipment is as follows: figure 1 As shown, it includes a 0.8m high non-metallic test bench 10, absorbing clamp 20, measuring receiver 30, measuring wire 40 connecting absorbing clamp and measuring receiver, ferrite ring assembly 50 for hanging the measuring wire, Th...

AI Technical Summary

Problems solved by technology

The test equipment uses the absorbing pliers 20 to drive the ferrite ring 50 to move. Due to the asynchrony between the two parts of the absorbing pliers 20 and the ferrite ring assembly 50, the measurement wires between the absorbing pliers 20 and the ferrite ring assembly 50 The segment and the absorbing clamp guide rail 60 are inclined, and the angle of inclination changes, which limits the accuracy of the test results

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