What is a RoHS Tester? A RoHS tester is a specialized device used to ensure compliance with the European Union’s RoHS (Restriction of Hazardous Substances) directive. This directive aims to limit the use of specific hazardous substances in electrical and electronic products. The primary function of a RoHS tester is to measure the levels of the following six hazardous substances in products: ...
Impedance analyzers are crucial testing devices used to assess the impedance characteristics of electronic components, circuits, and materials. With the rapid advancement of electronic technology, impedance analyzers are increasingly vital in fields such as circuit design, material science, and biomedical engineering. Working Principle of Impedance Analyzers: The principle of impedance analyzers i...
Principle of Battery Internal Resistance Tester: The battery internal resistance tester is designed to measure the internal impedance and voltage of batteries. Its principle involves applying a 1 kHz alternating current (AC) signal to the test object and measuring the AC voltage drop to obtain the internal resistance value. In comparison to the principle of resistance measurement using a multimete...
Working Principle of Withstand Voltage Tester: Withstand Voltage Testing is a crucial process for assessing the ability of various electrical devices, insulation materials, and structures to withstand voltage. During the test, high voltage is applied to the insulation material without compromising its performance. The basic principle of a withstand voltage tester involves applying a voltage higher...
A surge, also known as a transient voltage or spike, refers to the phenomenon of voltage exceeding the normal operating voltage for a brief moment. Essentially, a surge is a rapid voltage pulse that occurs within microseconds. Common causes of surges include the startup or shutdown of heavy equipment, short circuits, power switching, and the operation of large engines. Surges can potentially cause...
Salt Spray Test Chamber: Testing Standards Salt spray test is an environmental test that evaluates the corrosion resistance of products or metal materials by simulating a salt spray environment. Salt spray tests are divided into two main categories: natural environmental exposure tests and artificial accelerated simulated salt spray environment tests. The artificial simulated salt spray environmen...
Overview Glow Wire Testing is a crucial method for evaluating the stability of electronic appliances during operation. By simulating high-temperature conditions resulting from electrical faults, this test assesses the fire resistance and tolerance of product materials. Composition and Operation of the Glow Wire The glow wire is a fixed-specification resistive wire loop. During the test, the glow w...
A spectrum analyzer is an instrument used to measure signal spectra, displaying frequency components and their relative amplitudes, aiding engineers and technicians in understanding signal characteristics. In spectrum analysis, harmonics are crucial. Harmonics are integer multiples of the fundamental frequency signal, typically generated by nonlinear systems. In audio, radio frequency (RF), and po...
An Electrostatic Discharge (ESD) generator is a testing device designed to simulate electrostatic discharge events. They play a crucial role in electronic device testing, aiding engineers in evaluating and improving equipment’s sensitivity and tolerance to electrostatic discharge. Introduction ESD generators are designed according to international standards like IEC 61000-4-2 to simulate ele...
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