Introduction: An integrating sphere, also known as a photometric sphere or luminous sphere, is a hollow spherical device used for optical measurements. Its design incorporates one or more ports on the sphere’s surface for light input and placement of light-receiving devices. Structure and Characteristics of Integrating Spheres: Sphere Shell and Deviation Requirements: • An integrating sph...
The electrostatic discharge generator is a specialized device utilized to simulate and assess the resilience of electronic devices under electrostatic discharge (ESD) and similar electrostatically related environments. It validates the performance and durability of devices by mimicking the amplitude, frequency, and waveform of electrostatic discharges. The generator primarily consists of a power s...
Distributed photometers are essential measurement devices used to test the photometric performance of lighting fixtures. They are categorized into vertical and horizontal types and are capable of measuring parameters such as spatial light intensity distribution, total luminous flux, and luminaire efficiency. The system comprises precision turntables and control systems, spectral analysis systems, ...
The RoHS tester is an instrument used to detect the presence of hazardous substances restricted by the EU RoHS standard, primarily detecting six harmful substances including lead (Pb), cadmium (Cd), mercury (Hg), hexavalent chromium (Cr6+), polybrominated diphenyl ethers (PBDE), and polybrominated biphenyls (PBB). The RoHS tester typically refers to an X-ray fluorescence spectrometer, with an anal...
With the continuous development of technology and the improvement of people’s living standards, electronic products and mechanical equipment have become an indispensable part of daily life. However, in a constantly changing environment, the issues of waterproofing and dustproofing faced by products are increasingly prominent. In order to ensure that products can function properly under vario...
Dust penetration into products can have significant impacts on their performance and durability: • Breaching Seals and Casings:Dust can infiltrate internal spaces through seals and casings, compromising sealing effectiveness and thereby affecting waterproofing and environmental adaptability. • Altered Electrical Performance: Dust particles can affect electrical performance by increasing contac...
Light-mediated biological effects refer to the physiological changes in the human body caused by exposure to light radiation. The mechanism of light-mediated biological effects varies depending on different pathways. Firstly, light can directly act on the human eye, transmitting visual information and inducing visual effects. Secondly, light can regulate the body’s physiological rhythms by a...
Principle of Illuminance Meter Testing: An illuminance meter is a device used to measure illuminance (light intensity), based on the principle of photoelectric effect. The photovoltaic cell used in illuminance meters is a type of photoelectric component that directly converts light energy into electrical energy. When light strikes the surface of the photovoltaic cell, it passes through a metal fil...
The needle flame test and the glow wire test are both used to assess the fire resistance of materials, but they differ in their testing principles and applications. Needle Flame Test: The needle flame test evaluates the risk of small flames that may occur under fault conditions in equipment. Specifically, this test utilizes a specified size (diameter of 0.9 millimeters) needle-like burner, which d...
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