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Sound and Vibration Instrument Hire and Calibration

B&K 4381 Accelerometer Specifications


 
Bruel & Kjaer 4381 Accelerometer
 
Bruel & Kjaer 4381 ; Accelerometer £ 4 a day *
 

Piezoelectric charge accelerometers - with side connector


Charge sensitivity : 10 pC/ms-2 or 98 pC/g ± 2 %   **
Voltage sensitivity : 8 mV/ms-2 or 80 mV/g ± 2 %   **
 
Mounted resonance : 16 kHz
Frequency range - 5 % : 0.2 Hz to 3500 Hz
Frequency range - 10 % : 0.1 Hz to 4800 Hz
 
Capacitance - typical : 1200 pF with supplied cable
 
Max transverse sensitivity : < 2 %
Transverse resonance : 4 kHz
Piezoelectric material : Pz23
Construction : Delta shear
 
Typical temperature transient sensitivity : 0.02 ms-2/°C
Typical magnetic sensitivity (50 Hz to 0.03T) : 1 ms-2/tesla
Typical acoustic sensitivity (154 dB SPL) : 0.001 ms-2
Minimum leakage resistance at 20 °C : 20 GΩ
Ambient temperature range : -74 to 250 °C
 
Maximum operational shock (Peak) : ± 20 kms-2
Maximum continuous sinusoidal acceleration (Peak) : 20 kms-2
Maximum acceleration (Peak) with mounting magnet : 0.6 kms-2
 
Electrical Connector : 10-32 UNF, miniature coaxial connector
 
Mounting thread : 10-32 UNF, 3.2 mm deep
Mounting torque : 1 Nm, max = 2 Nm, min = 0.5 Nm
 
Dimensions - body : 21 mm diameter
Dimensions - overall height : 22.6 excluding top connector
Dimension - across base flats : 21 mm, spanner size
 
Weight : 54 g
Case Material : Titanium
Recommended cable : AO 0038
 
** Individual specifications given in the calibration chart
 
E&OE - specifications subject to change without notice.