McLeod Gauge | Mcleod Gauge Working Principle | Mcleod Gauge pdf | Mcleod Gauge Working

Hello friends, Today we will discuss about the McLeod Gauge.

What is Mcleod Gauge :-

• Mcleod Gauge is device used to measure pressure at very lower range upto 10–6 torr or 133.32 Mpa.
• It is also used to measure vacuum pressure.
• Mcleod Gauge is also known as compression gauge.
• It is similar to mercury manometer. As it uses mercury as measuring fluid & height of mercury column determines pressure difference.
• Mcleod gauge is invented by british scientist Herbert mcleod in year 1874.
• In this gauge known volume of gas is compressed at constant temperature.
• This gauge gives final volume & pressure difference. From this data we can calculate unknown pressure of gas.

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