seismic, high sensitivity, ceramic shear accelerometer, 4 wire, customer special

ACCELEROMETER

Model 393M125

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  • IP

Seismic, High Sensitivity, Ceramic Shear Accelerometer, 4 wire, Customer Special

Based on 393B12, with 3-wire ICP and Rad Hard electrical components. 393B12 (better to use 393C12 in development) with 3 or 4 wire amp design as follows: •Measuring range: 100 mg (10-3 m/s2) maximum detectable signal •Noise floor (rms): 10 µg (10-6 m/s2) from 1 to 10k Hz. •Frequency range = 50-1000 Hz +/- 5% •Maximum phase error = 5° Power supply assumes a power budget of about 40mW for each sensor. Customer has regulated DC voltage preferably in the range of 15-20V max.
  • Sensitivity: (±10%)10000 mV/g (1019.4 mV/(m/s²))
  • Broadband Resolution: 10 µg rms (0.0001 m/s² rms)
  • Measurement Range: 0.18 g pk (1.8 m/s² pk)
  • Frequency Range: (±5%)0.15 to 1000 Hz
  • Electrical Connector: 3-Pin

Specification Notes

[1] Zero-based, least-squares, straight line method.
[2] Typical.
[3] See PCB Declaration of Conformance PS094 for details.

English: SI:
Performance
Sensitivity (±10 %) 10000 mV/g 1019.4 mV/(m/s²)
Measurement Range 0.18 g pk 1.8 m/s² pk
Frequency Range (±5 %) 0.20 to 1000 Hz 0.20 to 1000 Hz
Frequency Range (±10 %) 0.15 to 2000 Hz 0.15 to 2000 Hz
Frequency Range (±3 dB) 0.07 to 4000 Hz 0.07 to 4000 Hz
Resonant Frequency ≥10000 Hz ≥10000 Hz
Phase Response (±5 °) 1 to 1000 Hz 1 to 1000 Hz
Broadband Resolution (1) 10 µg rms 0.0001 m/s² rms [2]
Non-Linearity ≤1 % ≤1 % [1]
Transverse Sensitivity ≤7.0 % ≤7.0 %
Environmental
Overload Limit (Shock) ±1200 g pk ±11772 m/s² pk
Temperature Range -38 to +178 °F -39 to +81 °C
Temperature Response See Graph %/°F See Graph %/°F [2]
Electrical
Excitation Voltage 6 to 20 VDC 6 to 20 VDC
Current Draw ≤4 mA ≤4 mA
Output Impedance <100 Ohm <100 Ohm
Output Bias Voltage 2.25 to 2.75 VDC 2.25 to 2.75 VDC
Discharge Time Constant ≥2.5 sec ≥2.5 sec
Settling Time ≤30 min ≤30 min
Spectral Noise (1 Hz) <1.69 <16.52 (µm/sec2)/√Hz [2]
Spectral Noise (10 Hz) <0.48 <4.73 (µm/sec2)/√Hz [2]
Spectral Noise (100 Hz) <0.20 <1.92 (µm/sec2)/√Hz [2]
Spectral Noise (1 kHz) <0.14 <1.37 (µm/sec2)/√Hz [2]
Electrical Isolation (Case) ≥100000000 Ohm ≥100000000 Ohm
Physical
Sensing Element Ceramic Ceramic
Sensing Geometry Shear Shear
Housing Material Stainless Steel Stainless Steel
Sealing Hermetic Hermetic
Electrical Connector 3-Pin 3-Pin
Electrical Connection Position Top Top
Mounting Thread 1/4-28 Female 1/4-28 Female

* All specifications are at room temperature unless otherwise specified.

TempChart

Accessories
Supplied
ATS-5 Hermeticity test (helium leak test) 0
ACS-4 Single axis, low frequency phase and amplitude response cal from 0.5 to 10 Hz, (requires ACS-1 and minimum sensitivity of 20 mV/g) 1
ACS-84 Phase and Amplitude Calibration from 10 Hz to upper +5% of frequency range 1