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# Pressure Mechanical Gauges

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This ppt is basically for mechanical engineers i.e. it is a topic of fluid mechanics. It can also be used in measuring techniques. This topic is really very vast but to give it in brief, this presentation is more than enough.

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### Pressure Mechanical Gauges

1. 1. Layoutbyorngjce223,CC-BY Seminar On: Pressure Mechanical Gauges Submitted By: Abhishek Sharma B.Tech ECE I Yr
2. 2. Layoutbyorngjce223,CC-BY Introduction Mechanical Gauges are the best instruments to measure High Fluid Pressure in hydraulics engineering, where Tube Gauge cannot be conveniently used. The principle on which all Gauges work is almost same.
3. 3. Layoutbyorngjce223,CC-BY Bourdon Tube Pressure Gauges Invented by E. Bourdon. Pressure responsive element is made up of bronze & steel in tube from. Outer end is closed and free to move. Inner end is connected to the point where pressure is to be measured. Due to increase in pressure elliptical shape converts into circular, and this movement is measured thorough link & pinion.
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5. 5. Layoutbyorngjce223,CC-BY Diaphragm Pressure Gauge Pressure responsive element is an elastic steel corrugated diaphragm. Elastic deformation of diaphragm under pressure is transmitted to a pointer by similar arrangement as in first case.
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7. 7. Layoutbyorngjce223,CC-BY Bellows Pressure Gauge Pressure responsive element is made of metallic tube having deep circumferential corrugation During increase or decrease of pressure, elastic element expand & contrasts that reads on pointer.
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9. 9. Layoutbyorngjce223,CC-BY Dead Weight Pressure Gauge It is a balancing device. It consist of a Piston and a Cylinder of known area and connected to a Fluid by a Tube. By changing the Weight on the Piston, the Pressure on the Fluid is calculated and marked on the Pointer.
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