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

General Purpose Accelerometers

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

标签：Physical Properties Testing Shock and Vibration Test Systems

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