Environmental Chamber | Climatic Chamber | Thermal Chamber | Salt Fog Chamber - LISUN

There are many different brands of color spectrophotometers on the market, and even within the same brand, there are multiple products available. The handheld and desktop types are the most popular categories, but what are the differences between these two types? Portable Colorimeters – also known as Portable spectrophotometers Can directly read data and connect to a computer through software: Small size, convenient to carry, high accuracy, and moderate price. Easy to operate, even ordinary personnel can easily handle it. Desktop Colorimeters – also known as Benchtop Transmittance Spectrophotometer: Equipped with a reading window, used with color matching software when connected to a computer, has high accuracy color matching function, large size, stable function, and high price. As we all know, Benchtop Transmittance Spectrophotometer are more accurate and consistent than portable devices. When using strict tolerances or setting color specifications, desktop devices are usually the pr...

I. Introduction of Surge Generator Surge generators are important equipment in electrical systems. Their main function is to simulate high-voltage pulses or instantaneous voltage fluctuations to test and evaluate the effectiveness of different surge suppression systems. These high-voltage electrical devices mainly serve to prevent transient voltage fluctuations from damaging electrical systems, thus safeguarding production. Surge generators play a crucial role in measuring the suppression capabilities of electrical systems. They are able to generate high-voltage pulses to simulate lightning strikes or other sudden high-voltage current events, testing the efficiency and reliability of suppression systems. If these suppression systems cannot withstand these high-voltage pulses, it means that they are unable to effectively protect the electrical system, which may lead to production interruptions and equipment damage. Therefore, surge generators are essential tools for ensuring that electr...

What is Damped Oscillation: Damped oscillation is a type of non-harmonic motion commonly seen in systems such as spring oscillators and pendulums. It is a vibration in which the amplitude gradually decreases over time due to the presence of factors such as friction and resistance, also known as damping. The vibrating system continuously overcomes external resistance and consumes energy, causing the amplitude to decrease until the vibration eventually stops. This energy-decreasing vibration is called damped oscillation. Unlike harmonic oscillation, damped oscillation is non-periodic. Damped oscillation systems belong to dissipative systems, and their damping properties can be quantitatively represented. Damping also includes any influence and cause of energy decay in the vibrating system. Therefore, damping can be caused by external forces or inherent characteristics of the system. In summary, damped oscillation is a special vibration phenomenon in which energy gradually decreases. Damp...

What is Coupling and decoupling? Coupling is the energy exchange linkage between two circuits or two parts in one circuit, enabling energy to be transmitted from one circuit to another or from one part to another. Decoupling is the prevention of energy feedback from one circuit to another, to avoid unpredictable feedback reactions, resulting in abnormal operation of the next level amplifier or other circuits. Analyzing further the working principle of the coupling-decoupling network: By separating noise from the circuit with the coupling-decoupling network, the signal can be made cleaner and more stable. The coupling-decoupling network is composed of two capacitors and one inductor. The two capacitors are responsible for separating the high-frequency signal from the direct current signal, and the signal is separated through the inductor. When the high-frequency signal passes through the inductor, the bias voltage will change, thus changing the amplitude of the voltage on this basis. In...

The High and Low Temperature Termal Shock Chamber is the main equipment of modern reliability laboratories, which simulates the changes in cold and hot environments for testing, and is used for cold and hot cycles of various materials and environmental stress tests under high and low temperature impacts. The physical changes and material properties of the product after the environmental test of thermal expansion are evaluated through the cold and thermal shock test. The testing products include cycling tests on materials such as lithium batteries, metals, rubber, and rapidly changing electronics, to test the stability of the materials. From the perspective of LED product quality, whether it is indoor or outdoor, the environmental climate of LED depends to a certain extent on the LED utilization rate. The high and low temperature impact test chamber environmental testing equipment can simulate the rapidly changing climate of high and low temperatures in the natural environment. The LED ...

Transformer preventive testing, a crucial component of power equipment operation and maintenance, has long been given priority by the state. Practical experience suggests that following inspection regulations enables the inspection to make full use of its role and safeguard the safe operation of power equipment. With the enhancement of insulation level and the continuous advancement of computer technology, the intelligence construction of power equipment is gradually being promoted. Preventive testing is also facing new changes. In the future, it will move towards scale, information and intelligence, and the equipment such as transformer and circuit breaker can be effectively monitored and diagnosed by testing laboratory. The use of information technology and automation technology will be used for preventive testing of power equipment, to enhance the safety performance of power equipment operation and realize scientific management of preventive testing. Therefore, the application of tr...

The High Temperature Pressure Jet Waterproof Test Chamber is an important experimental equipment, usually made of materials such as stainless steel or domestic steel plates. It can simulate high-temperature and high-pressure conditions in real environments, and conduct reliability testing and performance verification on products in experiments. Its main function is to spray high-pressure and high-temperature water into materials, components, and various product equipment through water pumps or pressure conveying systems in high-pressure, high-temperature, and high humidity environments for spraying testing to evaluate their durability and reliability. It can be applied to industries such as automobiles, electrical appliances, LED outdoor lighting, and has a wide range of applications. What is the function of the High Temperature Pressure Jet Waterproof Test Chamber? The High Temperature Pressure Jet Waterproof Test Chamber has the characteristics of stable temperature control, wh...