Low Pressure Mercury Vapour Lamp

What s the difference between low pressure lp amalgam low pressure lp and medium pressure mp uv lamps.

Low pressure mercury vapour lamp.

This lamp has a highly stable output predominantly at the 253 7 nm mercury line. Lamp output in the uv range depends on the amount of mercury and vapor pressure of mercury in the lamp. Often called germicidal or ozone absorption lamps they are very stable light sources. Fluorescent and germicidal lamps are included in this.

In medium pressure mercury vapor lamps the lines from 200 600 nm are present. Low pressure mercury vapour lamp hg 2 lamp heraeus has developed a compact low pressure low voltage mercury vapour lamp type hg2 principally for use in scientific instrumentation. Looking for low pressure mercury lamp. Closed ask question asked 5 days ago.

Amalgam lamps use a mercury amalgam mix to control mercury vapor pressure. Rather than a cold spot the lamp s amalgam spot on pellet regulates mercury vapor pressure during operation and yields up to three times the uvc output of a standard low pressure mercury lamp of the same length. These types of lamps are available in ozone producing and ozone free quartz with a variety of phosphors. Fused silica is used in the manufacturing to keep the 184 nm light from being absorbed.

In low pressure mercury vapor lamps only the lines at 184 nm and 254 nm are present. Viewed 18 times 0 begingroup closed. Explanation of low pressure mercury lamp. This question is off topic.

Again transition of the electrons requires least amount of input energy from a colliding electron. Low pressure mercury vapor lamps do they always produce both 184 5nm and 253 7nm. Find out information about low pressure mercury lamp. The blue green tint of mercury vapor lamps is caused by the strong violet and green lines.

A mercury vapor lamp whose partial pressure during operation does not exceed 0 001 atmosphere. Low pressure lp amalgam low pressure lp and medium pressure mp lamps are all mercury based lamps. Active 5 days ago. One would tip the lamp and electrical contacts on each side of the lamp would send electricity through a liquid mercury which started the lamp.

The first mercury vapor lamps were in a lower pressure tube. Mercury vapor conducts electricity completing the circuit. It is not currently accepting answers.