What is the principle of operation of a Bourdon tube pressure gauge?
A. A fluid-filled tube is distorted by the applied pressure, which moves a pointer on a dial.
B. A piezoelectric crystal is compressed by the applied pressure, which generates an electrical signal.
C. A pressure-sensitive diaphragm deflects in response to the applied pressure, which is measured by a strain gauge.
D. A piston is moved by the applied pressure, which rotates a needle on a dial.
Answer:A
What is the principle of operation of a Bourdon tube pressure gauge?
A. A fluid-filled tube is distorted by the applied pressure, which moves a pointer on a dial. B. A piezoelectric crystal is compressed by the applied pressure, which generates an electrical signal. C. A pressure-sensitive diaphragm deflects in response to the applied pressure, which is measured by a strain gauge. D. A piston is moved by the applied pressure, which rotates a needle on a dial.
Explanation: A Bourdon tube pressure gauge works on the principle that a fluid-filled, curved tube will straighten out when exposed to pressure, and will return to its original shape when the pressure is removed. The movement of the tube is converted into a mechanical movement that is displayed on a dial by a pointer.