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General Purpose Accelerometers
The Models 3021, 3022and 3023 Piezoelectric Accelerometers from Columbia Research Laboratories are provided in a choice of sensitivities for shock work and general vibration.
The piezoelectric seismic system’s internal construction guarantees that the units have no evident spurious response to mounting torque, cable whip, cable vibration, body strains, pressure variationsand most heat transients.
The stainless-steel housing offers an environmentally rugged unit, while the epoxy seal provides safety against industrial surroundings.
Its grounded case construction offers tight mechanical coupling that gives precise, vibration dataand wideband shock. Such accelerometers feature a 10-32 side connector and are offered with a 10″ low-noise coaxial cable. High-temperature units will function in environments ranging up to +500 °F.
Vibration and shock
Side connector available
Choice of sensitivities
10 to 32 Mounting Stud
Case grounded
Image Credit: Columbia Research Laboratories
Specifications
Source: Columbia Research Laboratories
| Transfer / Electrical | 3021 & 3021HT | 3022 & 3022HT | 3023 & 3023HT |
|---|---|---|---|
| Charge Sensitivity1 | 60 +/-10 pC/g | 35 +/-5 pC/g | 15 +/-3 pC/g |
| Capacitance | 725 +/-60 pF | 650 +/-60 pF | 650 +/-60 pF |
| Frequency Linearity2 | +/-5% Max1 Hz To 5,000 Hz | +/-5% Max1 Hz To 7,000 Hz | +/-5% Max1 Hz To 10,000 Hz |
| Mounted Resonant Frequency | 25 KHz, Min. | 35 KHz, Min. | 50 KHz, Min. |
| Transverse Sensitivity | 5% Max | ||
| Amplitude Linearity | +/-1.0% (BFSL) / 300g | +/-1.0% (BFSL) / 1,000g | |
| Insulation Resistance | 20,000 M Ohm Min, 50 VDC Test | ||
| Isolation Resistance | 0 (Case Grounded) | ||
| Environmental | 3021 & 3021HT | 3022 & 3022HT | 3023 & 3023HT |
|---|---|---|---|
| Vibration Limit | 1,000 g Max (Sine) | ||
| Shock Limit | 2,000 g Max | 5,000 g Max | 10,000 g Max |
| Temperature RangeModels 3021, 3022, 3023Models 3021HT 3022HT 3023HT | -100 To +350 Deg F (-73 To +175 Deg C)-100 To +500 Deg F (-73 To +260 Deg C) | ||
| Humidity3 | 0 To 95% R.H. (Non-Condensing) | ||
| Base Strain Sensitivity | 0.008 g/μE Equiv, Typical | ||
| Electromagnetic Sensitivity | 0.02 g (Equiv / 100 Gauss) | ||
| Physical | 3021 & 3021HT | 3022 & 3022HT | 3023 & 3023HT |
|---|---|---|---|
| Configuration | Single Ended Compression | ||
| Size | 0.625 In. Hex. x 0.780 In. H (15.9 mm Hex x 19.8 mm H) | ||
| Weight | 1.1 Oz (30 Gm) | 0.8 Oz (23 Gm) | 0.7 Oz (21 Gm) |
| Case Material | 18-8 Stainless Steel | ||
| Electrical Interface | Coaxial 10-32 Thread | ||
| Mounting | 10-32 Tapped Base | ||
Notes:
1 At +75 Deg F, 10 g Peak, 100 Hz; Lower Frequency Limit is Determined by Associated Electronics2 Referenced to Sensitivity @ 100 Hz.3 With Connector Protected or Sealed, Unit is Epoxy Sealed
Accessories Supplied
(1) Miniature Cable Assy, called LNHT-10′
(1) Availability of standard calibration data
(1) Mounting Stud, St. Stl measures around 10-32 x 0.375"L
(1) Comes with a hardwood storage case
(1) Certificate of Calibration Traceable to N.I.S.T. is provided
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