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What is meani...

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What is meaning of accelerometer

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Solution

It is an instrument for measuring the acceleration of a moving or vibrating body.

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Q. A cantilever-type micro-accelerometer is designed by scaling down each dimension of a macro-accelerometer by a factor of 100. If the natural frequency of the macro-accelerometer is

ω

, then the natural frequency of the micro-accelerometer will be

Q. The seismic mass of an accelerometer oscillates sinusoidally at 100 Hz with a maximum displacement of 10 mm from its mean position. The peak acceleration of the seismic mass is

Q. An accelerometer has a seismic mass of 1000 gram and natural frequency of 1 kHz. With g the acceleration due to gravity, the static sensitivity of the accelerometer in (nm/g) is

Q. An accelerometer has a seismic mass of 0.05 kg and a spring constant of

3 \times 10^{3} N / m .

The maximum permissible displacement of the mass is

\pm 1 m m .

The maximum measurable acceleration in

m / s^{2}

Q. A piezoelectric accelerometer has a transfer function of 60 mv/g and natural frequency of oscillation as 4.5 kHz . In a vibration test at 110 Hz a reading of 3.6 V peak results what is the magnitude of peak displacement in mm?
(correct up to 2 decimal places)

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