electrical safety test equipment, environment test equipment, test probes, go not go gauges

As we all know, LED lights are more and more popular with the advantages of energy saving and environmental protection, but if the quality of LED lights is not good, there is a serious strobe. This strobe is undetectable to the naked eye and can easily be ignored by parents and children. LED lights on the market, there may be serious strobe! 1.  Where does LED flicker comes from? Strobe is the depth at which the luminous flux of an electric source fluctuates. The greater the fluctuation of the luminous flux, the more severe the stroboscopic. The depth of the fluctuation of the luminous flux of the electric light source is directly related to the technical quality of the electric light source. Conventional luminaires are powered by alternating current, and their brightness varies with the periodic variation of the alternating current. The strobe of the luminaire is formed by the change of darkness of the light. It is usually divided into two types: one is that the frequency o...

Thermocouple is a commonly used temperature measuring component in temperature measuring instruments. It directly measures the temperature and converts the temperature signal into a thermoelectric potential signal, which is converted into the temperature of the measured medium by an electric meter (secondary meter). The shape of various thermocouples is often very different due to needs, but their basic structure is roughly the same, usually composed of hot electrode, insulating sleeve, protection tube, junction box and etc., and often equip with display instrument, recording instrument and electronic regulator, like multiplex temperature meter , black test corner and etc. According to the seeback effect, when two different metals are connected together, there is a contact voltage between the two contact points, which depends on the temperature. The connection of thermocouple materials is standard, and the different properties of the thermocouple materials determine their differe...