Due to the excellent characteristics mentioned above, barium tungsten electrodes are often used in fields such as optoelectronic products, navigation mark identification, target tracking, stage and dance hall effect display, film and television projection and recording, laser mercury pump, medical positioning therapy light source, and military weapons. For example, due to its low escape work（ φ= It is widely used in HID lamps due to its high current density (10A/cm2), excellent starting performance, and large energy output.
Barium tungsten electrodes have low escape function, so they are often made into vacuum and laser devices. The electronic emission performance of electric light source products can reach a repetition rate of 1-40 times/second from low to high. The strobe lamp prepared using barium tungsten electrodes has significantly improved startup performance and can be used normally below 10% of the market supply voltage (220V). Due to the high current density of the barium tungsten electrode, the brightness of the strobe lamp increases by about 15%. At the same time, the high-frequency flash lamp prepared by barium tungsten electrode has a long service life of over 5 million times, and there will be no leakage or continuous flashing during use.
Barium tungsten electrodes are also widely used in xenon lamps. Like ordinary fluorescent lamps, long arc xenon lamps are also tubular. The lamp tube is made of fully transparent glass that is resistant to high temperature and has a low coefficient of thermal expansion. The tube is filled with high-purity xenon gas, and two thorium tungsten or barium tungsten electrodes are sealed at both ends. The lamp tube is better than ordinary fluorescent lamps.
As an electronic source, impregnated barium tungsten electrodes are also widely used in various microwave devices.
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