CRYSTAL ACCELEROMETER RESPONSE TO MECHANICAL SHOCK IMPULSES

Technical Report · Thu Aug 23 04:00:00 EDT 1956

OSTI ID:4014560

Lawrence, A F

Crystal accelerometers, when used with normal circuitry to measure shock impulses, will cause distortion of the shock waveform and if the shock curves are not properly interpreted and certain corrections applied, the results will be in error. A correction curve with which to determine the true positive peak of half- sine shock impulses is derived which when applied will reduce measurement error. Laboratory tests showed that for true reproduction of the shock impulse direct coupled circuitry is required, and it must have a very high input resistance (obtainable with an electrometer) to prevent current from being drawn from the crystal. It is concluded that the use of the conventinal cathode follower will cause the curve to have a reduced peak value and a shorter duration than the input impulse. Application of the correction curve will result in a value closer to the true peak value. (auth)

• Research Organization: Sandia Corp., Albuquerque, N. Mex.
• NSA Number: NSA-15-018265
• OSTI ID: 4014560
• Report Number(s): SCTM-168-56-16; M-6105
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ABSORPTION
ACCELEROMETERS
AMPLIFIERS
CATHODE FOLLOWERS
CIRCUITS
COBALT 57
CRYSTALS
DECAY
EFFICIENCY
ELECTRIC CONDUCTIVITY
EMISSION
ENERGY LEVELS
ENGINEERING AND EQUIPMENT
GAMMA RADIATION
INSTRUMENTS
IRON 57
LABORATORY EQUIPMENT
LOW TEMPERATURE
MAGNETIC FIELDS
MOESSBAUER EFFECT
NUCLEI
PULSES
RESONANCE
SHOCK WAVES
SPECTRA
SPIN
TESTING
THERMOMETERS