Vibration test 振動測試 (updated: 12/24/2012)

Several tasks should be performed for all components of space payloads on sounding rockets or satellites in vibration tests:

  • Sine vibration
  • Random vibration
  • Shock (optional)

The vibration testing system (F-06000BM) includes the following equipments:

  • Vibration generator
  • Drive power supply
  • Pre-charge amplifier
  • Vibration control
  • Remote cooling blower

The vibration testing system should be capable to integrate with Space Plasma Simulation Chamber and thermal cycling facility at SPL.

Vibration generator

Device
Vibration generator (shaker)
Manufacturer EMIC Corp.
Model 906-FN.
Exciting force Sine, 6.0 kN (612 kgf) peak.
Maximum displacement 20 mm p-p at no load.
Maximum velocity 1.5 m s-1
Frequency range DC to 3,500 Hz.
Maximum acceleration Sine, 923 m s-2 (94G) peak.
Maximum payload 60 kg directly on shaker armature table.
Armature mass 6.5 kg.
Armature table diameter 120 mm.
Allowable offset moment 120 M-m.
Magnetic field structure Energized with double ended field coil.
Required DC power for field coil 3.7 kW.
Dimensions (W x H x D) 720 x 765 x 678 mm
Weight 500 kg.

Drive power supply

Device
Drive power supply
Manufacturer EMIC Corp.
Power amplifier model 366A-0101-06.
Console rack model CRJ-2000-06.
Output power 6 kVA.
Circuit Solid state.
Distoration Less than 1% from DC to 2,000 Hz.
Frequency response DC to 4,000 Hz.
S/N ratio 70 dB below full output.
Input voltage 1 V rms.
Input impedance 10 kΩ, any oscillator or external signal source available.
Output impedance Matched to impedance of shaker over specified operating frequency range from DC to 500 Hz.
Protective device Over voltage, over current.
Cooling method Air cooled by integral fan.
Field power supply DC output power: 3.7 kW.
Rectification method: Three phase, full wave semiconductor bridge rectifier
Rectification element: Silicon diode
Ripple percentage: 5%
Dimensions (W x H x D) 654 x 2,000 x 1,010 mm
Weight 420 kg.

Pre-charge amplifier

Device
Pre-charge amplifier
Manufacturer EMIC Corp.
Input channel 2 channels.
Sensitivity range 0.100 pC/(m/s2) to 0.999 pC/(m/s2)
1.00 pC/(m/s2) to 9.99 pC/(m/s2).
Maximum charge 2,200 pC for the range from 0.100 pC/(m/s2) to 0.999 pC/(m/s2)
22,000 pC for the range from 1.00 pC/(m/s2) to 9.99 pC/(m/s2)
Noise referred to input 0.02 pC rms.
Frequency range 5 Hz to 5 kHz (within ±0.5 dB).
Output impedance 100 Ω.
Output sensitivity 5 mV/(m/s2).
Maximum output voltage 10 V.
Input power DC±15V±15%, 30 mA.
Operating temperature 0℃ to 50℃.
Operating humidity 20 %RH to 90 %RH.
Dimensions (W x H x D) 128 x 106 x 120 mm
Weight 0.6 kg.

Vibration control

Device
Vibration control
Manufacturer EMIC Corp.
Digital vibration controller DCS-98Smart.
Random vibration control package EPS-101ME.
Sine vibration control package EPS-201ME.
2-ch pre-charge amplifier 504-E-2.

Remote cooling blower

Device
Remote cooling blower
Manufacturer EMIC Corp.
Model MI-10/5.
Air flow 11 m3 min-1.
Pressure -6.96 kPa.
Power requirement Three phase, 200 V, 50 Hz
Dimensions (W x H x D) 674 x 1,040 x 475 mm
Weight 55 kg.

Fixtures


This fixture was used to test ASM.
This fixture was used to test AIP sensor and SPEU.