Pressure Gauge Types and Working Principle | Simple Science

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This video explains What is a Pressure Gauge, different types of pressure gauge and working principle of pressure gauges.

Pressure gauges are divided into three types, based on pressure sensing elements.
1. Bourdon tube
2. Diaphragm
3. Bellow

Bourdon tubes are manufactured in C, helical, and spiral forms. Without pressure, the circular cross section of the bourdon tube is flattened. When these elements are pressurized, their cross section tends to become more circular, which tends to straighten their shape.

The diaphragm is an elastic membrane that elongates when pressure is applied to it. The diaphragm is a single sheet which elongate, Joining two diaphragm to form a capsule.

The bellows expands or contracts based on the pressure difference across the inside and outside of the bellows unit. When absolute pressure is to be sensed with bellows elements, it normally involves two bellows, one for measuring and the other for reference. Dual-bellows elements are also available as differential pressure sensors. If either the low or the high pressure side is left open to the atmosphere, the unit will detect either gauge pressure or vacuum.
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Phenomenal video explaining the differences between different types of pressure gauges with great detail, thanks!

joshqaszq
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One of the best video on this topic. Hats off to you for this amazing knowledge

adwaibowlekar
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We thank the Lord for the applications of this we can use for His greater Glory.

anakarmelalopez
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What is the spring for if the gear retracts the needle ?

OptimalOpinion
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Give detail of differential pressure gauge. Thanks

sabirullahkhan
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Class is very good but plz avoid background music

sadasivanpillaikrspillai
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The explanation is not so simple as written in video. The concept should be very clear even if a fresher reference purpose

ganagamvrksantosh
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What are you teaching man just writing without proper explanation, I don't like it

abhaychoubey