Test Equipment
The oscilloscope is a very versatile electronic measuring instrument. It can convert electrical signals that are invisible to the naked eye into visible images, which is convenient for people to study the changing process of various electrical phenomena.
The oscilloscope uses a narrow electron beam composed of high-speed electrons to hit the phosphor-coated screen to produce a small light spot (this is the working principle of a traditional analog oscilloscope).
Under the action of the measured signal, the electron beam is like the tip of a pen, which can draw the change curve of the instantaneous value of the measured signal on the screen. The oscilloscope can be used to observe the waveform curves of various signal amplitudes changing with time, and it can also be used to test various electric quantities, such as voltage, current, frequency, phase difference, amplitude modulation, and so on.
A network analyzer is a new type of instrument for measuring network parameters.
The network analyzer can directly measure the RF complex scattering parameters of active or passive, reversible or irreversible dual-port and single-port networks, and gives the amplitude and phase of each scattering parameter Frequency characteristics.
Network analyzers are based on four-port microwave reflectometers. In the mid-1960s automation, the use of computers by a certain error model at each frequency point to correct the directional coupler imperfection, mismatch and blowby caused by the error so that the measurement accuracy is greatly improved.
The network analyzer measurement accuracy of the most accurate measurement line technology in the metering chamber can be achieved, while the measurement speed is increased by several tens of times.
Salt Spray Tester Salt spray corrosion test box through the assessment of the material and its protective layer of salt spray corrosion, and similar protective layer of the process of quality comparison, at the same time can assess the ability of certain products salt spray corrosion.
The Salt Spray Tester Salt spray corrosion test box is suitable for parts, electronics Components, metal materials, protective coatings, and industrial products, salt spray corrosion tests.
The Salt Spray Tester Salt spray corrosion test box is the use of salt spray corrosion test samples were tested for the reliability of corrosion resistance, salt spray is the atmosphere composed of tiny droplets of salt formed by the dispersion system is artificial environment three anti-series.
A lot of business products need to simulate the destructive effects of the climate around the sea, so salt spray chamber should go its route.
Salt spray test is divided into two kinds of neutral salt spray and acid salt spray, the difference is in line with the standards and test methods are different, respectively, “NSS” and “CASS” test, artificial three weather climate is the most common test method.
Constant temperature and humidity test chamber, also known as constant temperature and humidity testing machine, constant temperature and humidity test chamber, programmable humidity test chamber, thermostat, or constant temperature and humidity box.
Constant temperature and humidity test chamber is used for testing materials in a variety of environments performance equipment and tests each It is suitable for testing the quality of electronics, electric appliances, mobile phones, telecommunications, instruments, vehicles, plastic products, metals, foodstuffs, chemicals, building materials, medical treatment, and aerospace products, etc.,
When the electromagnetic waves incident on the wall, ceiling, the ground, the vast majority of electromagnetic waves are absorbed, while transmission, reflection is very small.
The microwave also has some of the characteristics of light, with the meaning of optical darkroom, it named microwave anechoic chamber.
SA and metal shield for the formation of a special room, which provides man-made open “free space” conditions in the darkroom to do antenna, radar and other wireless communications products and electronic products testing can be protected from clutter and improve the test equipment under test Accuracy and efficiency, with the increasing development of electronic technology, microwave anechoic chamber is more people to understand and apply.
Microwave anechoic chamber is to use a wave-absorbing material to create a closed space, so that you can create a pure electromagnetic environment in the darkroom, microwave anechoic material can be all-absorbing materials, the main material is polyurethane absorbing sponge SA (high-frequency use) In addition, the test of electromagnetic compatibility of electronic products, the frequency is too low will use ferrite absorbing materials.
The main working principle of microwave anechoic chamber is based on the electromagnetic wave propagating from low magnetic guide to high magnetic guide in the medium. The electromagnetic wave is guided by the high magnetic permeability absorbing the material. Through the resonance, a large amount of radiation energy of the electromagnetic wave is absorbed, and then the electromagnetic wave The energy into heat.
