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Seismic Vibration

Seismic Vibration. Seismic Vibration Outline. What is Seismic Vibration? How do you measure Seismic Vibration? When do you measure Seismic Vibration? Why do you need to measure Seismic Vibration? Seismic Sensors Seismic Transmitters Seismic Switches Seismic Vibration Monitoring.

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Seismic Vibration

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  1. Seismic Vibration

  2. Seismic Vibration Outline • What is Seismic Vibration? • How do you measure Seismic Vibration? • When do you measure Seismic Vibration? • Why do you need to measure Seismic Vibration? • Seismic Sensors • Seismic Transmitters • Seismic Switches • Seismic Vibration Monitoring

  3. What is Seismic Vibration?

  4. What is Seismic Vibration? • Of, subject to, or caused by an earthquake or earth vibration • Earthshaking • lacking stability or fixity or firmness • of enormous proportions or having highly significant consequences • Basically nothing good

  5. What is Seismic Vibration Cont’d • In our field Seismic vibration has to do with the case vibration of a machine • Not the actual earth vibration

  6. How do you measure Seismic Vibration? • Acceleration • Change of velocity over time • Units = g • Velocity • Distance travelled per unit time • mm/s or ips(inches per second) • Displacement • Change of position • um or mil

  7. How do you measure Seismic Vibration? • Accelerometers • Ex: TM0782A • Velocity Sensors • Ex: TM0793V • Displacement Sensor • Ex: TM079VD

  8. When do you measure Seismic Vibration? • Use for measure absolute vibration bearing at bearing point • Bearing or housing vibration

  9. Why do you need to measure Seismic Vibration? • To detect occurring or developing problems due to machinery imbalance, misalignment, looseness, rolling-element bearing failure, gear defects, etc

  10. Seismic Sensors • Accelerometers • TM0782A • Accelerometer with Integral Cable TM0783A • Low Power TM0784A • Hi-Temp. TM0785A • Side-Exit TM0786A • Ultra-Hi Temp TM0787A

  11. Seismic Sensors • Velocity Sensors • TM0793V • Side-Exit TM0796V • Explosion Proof TM016-793 • Low Frequency Velocity/ Displacement TM079VD

  12. Seismic Transmitters • TR1101 • Measures machinery case vibration • 3-Wire Transmitter • 4-20mA output in acceleration, velocity or displacement • TM016 • 2-Wire Looped Powered Transmitter • 4-20mA output in acceleration or velocity

  13. Seismic Switches • PT580 • Digital Vibration Switch • Acceleration and Velocity • 4-20mA output • VS102 • Electronic Vibration Switch • Velocity • 4-20mA output • PT500 • Mechanical Vibration Switch • Acceleration

  14. Seismic Vibration Monitoring • DTM 20 • DM200 • PT2060

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