What is the principle of operation of a strain gauge pressure sensor?
A. It measures the resistance of a material to pressure changes
B. It measures the deflection of a diaphragm
C. It measures the capacitance between two conductive plates
D. It measures the frequency of vibration of a resonant element
Answer:A
What is the principle of operation of a strain gauge pressure sensor?
A. It measures the resistance of a material to pressure changes B. It measures the deflection of a diaphragm C. It measures the capacitance between two conductive plates D. It measures the frequency of vibration of a resonant element
Explanation: A strain gauge pressure sensor works by measuring the change in resistance of a material as it is subjected to pressure.