Design Considerations for Transducers Design Considerations for Transducers

Design Considerations for Transducers

Design Considerations for Transducers include: Ø Electrical Design Characteristics Ø Mechanical Design Characteristics Ø Static Design Characteristics Ø Dynamic Design Characteristics Ø Environmental Design Characteristics Ø Reliability Design Characteristics

Electrical Design Characteristics Ø Excitation – Active or passive transducer Ø Output – Function of input Ø End points – Range of output Ø Impedance – Input and output impedance Ø Amplifier and demodulator – For noise and gain instability Ø Grounding and insulation – Insulation of input and output grounds

ØStatic Performance Characteristics Ø Linearity – Output varies linearly with input Ø Room conditions – Pressure, temperature and humidity conditions Ø Calibration – Comparing with the standards Ø Error – Difference between desired and actual output Ø Hysteresis – Lag when the output changes

Static Performance Characteristics Ø Friction error – Change in output when friction changes from max to min Ø Repeatability – Ability to reproduce the output Ø Conformance – Closeness to the calibration curve Ø Resolution and threshold – Change of output per unit full scale

Dynamic Response Characteristics Ø Frequency Response Ø Response Time Ø Damping

ØEnvironmental Characteristics Ø Temperature Effects Ø Acceleration Effects Ø Vibration Effects

ØReliability Characteristics Ø Overload Ø Life

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