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Measurements and Instrumentation - Engineering

Q1:

An accelerometer has a seismic mass of 0.05 kg and spring constant of 3 x 105 N/m. If maximum displacement of mass is ± 1 mm, the maximum acceleration which can be measured is

A 30 m/s2

B 60 m/s2

C 90 m/s2

D 120 m/s2

ANS:B - 60 m/s2

0.05 x a = 3 x 103 x 10-3 or a = 60 m/s2.