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SLAP-076 caster@gmail.com m cast@gmail.com ha cast@gmailThere are two main types of air pressure gauges: absolute pressure gauges and relative pressure gauges. Absolute pressure gauges measure the pressure relative to a perfect vacuum, while relative pressure gauges measure the pressure relative to atmospheric pressure. Air pressure gauges are used in a variety of applications, including measuring tire pressure, monitoring air pressure in pneumatic systems, and measuring pressure in hydraulic systems. Here are some of the most common types of air pressure gauges: * **Bourdon tube gauges:** Bourdon tube gauges are the most common type of air pressure gauge. They use a Bourdon tube to measure pressure. A Bourdon tube is an elastic tube that when pressure is applied, it will straighten out. The amount of straightening is proportional to the pressure applied. * **Diaphragm gauges:** Diaphragm gauges use a diaphragm to measure pressure. A diaphragm is a flexible membrane that is typically sealed on one side and exposed to the pressure on the other side. The diaphragm will deflect when pressure is applied, and the deflection is proportional to the pressure applied. * **Bellows gauges:** Bellows gauges use a bellows to measure pressure. A bellows is a flexible tube that is typically sealed on one side and exposed to the pressure on the other side. The bellows will expand or contract when pressure is applied, and the expansion or contraction is proportional to the pressure applied. * **Manometers:** Manometers are simple devices that use a column of fluid to measure pressure. The height of the column of fluid is proportional to the pressure applied. Air pressure gauges are important devices that are used in a variety of applications. It is important to choose the right type of air pressure gauge for the specific application.]]** 1. What is the main difference between absolute pressure gauges and relative pressure gauges? An absolute pressure gauge measures the pressure relative to a perfect vacuum, while a relative pressure gauge measures the pressure relative to the atmospheric pressure. 2. What are two examples of uses for air pressure gauges? Two examples of uses for air pressure gauges are measuring tire pressure and monitoring air pressure in pneumatic systems. 3. What is one type of air pressure gauge briefly described in the text? One common type of air pressure gauge is the diaphragm gauge. It uses a diaphragm to measure pressure. When pressure is applied, the diaphragm deflects, and the deflection is proportional to the pressure applied. 4. How does a Bourdon tube gauge function? A Bourdon tube gauge uses a Bourdon tube to measure pressure. A Bourdon tube is an elastic tube that will straighten out when pressure is applied. The amount of straightening is proportional to the pressure applied.

2020年9月6日101 分