a.Accelerometer.(1)Transverse sensitivity of less than or equal to 5%.(2)An amplitude linearity within 10% from 5% to 100% of the peak acceleration amplitude required for testing.(3)For all measurement procedures, a flat frequency response within +5% across the frequency range of interest for the test. The device may be of the piezoelectric or piezoresistive type. Use measurement devices compatible with the requirements, guidelines, and precautions provided in paragraph 6.1, reference e.(4)Of sufficient voltage sensitivity (mV/G) so that the minimum test level yields a voltage output of at least 50 mv RMS, so as to ensure the reliable measurement of the relative phase between control responses.b.Signal conditioning. Use signal conditioning appropriate to for the measurement device.