Vibration Testing

Vibration testing and data processing is one of main business in ZCPPE. Vibration testing is an effective way to identify system dynamic characteristics and vibration source, diagnose system faults, control vibration and noise level, and solve vibration problems. All these are achieved through detection of vibration signals generated by mechanical equipment, structures and piping systems in operation.

 

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Vibration Testing for a Compressor Package Performed by ZCPPE

 

The vibration testing devices and data processing programs used by ZCPPE include:

1.  PXIe-4499, 24-bit, 204.8 kS / s, 4 Gain, TEDS, AC / DC coupled

  • 16-channel sampling inputs with sampling rate up to 204.8 kS / s
  • ADC with 24-bit resolution and 114 dB dynamic range
  • 4 kinds of up to +30 dB gain settings to guarantee the input signal ranging from ± 316 mV to 10 V
  • 4 mA IEPE and TEDS configured by software for microphones and accelerometers
  • 5 HZ coupled AC analog input
  • Synchronization of up to 272 full-bandwidth channels within a PXI Express box

testing 1    testing 2

2.  Acceleration sensors

  • PCB 356A26 triaxial accelerometers
  • Range of 100g, frequency response of 0.5 ~ 4500 Hz, temperature range of -54°C to +121°C
  • PCB 352C02 uniaxial accelerometers
  • Range of 500g, frequency response of 0.5 ~ 10000 Hz, temperature range of -54°C to +121°C

 

testing 5                 testing 6

3.  Commercial and in-house developed programs including spectrum analysis, time-frequency analysis, waterfall analysis, frequency response analysis, transfer function analysis, order analysis, etc.

testing 7     tets 8

Interface of Data Processing programs

testing 9      testing 10

Non-Stationary Signal Analysis                                 1/3 Octave Analysis