Sound and Vibration Instrument Hire and Calibration

Bruel & Kjaer 4378 Accelerometer Specifications

B&K 4378 : Accelerometer	£ 4 a day *

Piezoelectric charge accelerometer

Charge sensitivity : 31.6 pC/ms^-2 or 310 pC/g ± 2 %   **
Voltage sensitivity: 26 mV/ms^-2 or 260 mV/g ± 2 %   **
Mounted resonance : 13 kHz
Frequency range - 5 % : 0.2 Hz to 2800 Hz
Frequency range - 10 % : 0.1 Hz to 3900 Hz
Capacitance - typical : 1200 pF including supplied cable
Max transverse sensitivity : < 4 %
Transverse resonance : 3.8 kHz
Piezoelectric material : Pz27
Construction : Delta shear
Typical temperature transient sensitivity : 0.001 ms^-2/°C
Typical magnetic sensitivity (50 Hz to 0.03T) : 0.5 ms^-2/tesla
Typical acoustic sensitivity (154 dB SPL) : 0.001 ms^-2
Minimum leakage resistance at 20 °C : 20 GΩ
Ambient temperature range : -40 to 250 °C
Maximum operational shock (± Peak) : 5 kms^-2
Maximum continuous sinusoidal acceleration (Peak) : 5 kms^-2
Maximum acceleration (Peak) with mounting magnet : 0.2 kms^-2
Electrical Connector : 10-32 UNF miniature coaxial connector - top entry
Mounting thread : 10-32 UNF, 3.2 mm deep
Mounting torque : 1 Nm, max = 2 Nm, min = 0.5 Nm
Dimensions - body : 30 mm diameter
Dimensions - overall height : 38 mm
Dimension - across base flats : 30 mm - spanner size
Weight : 175 g
Case Material : Stainless steel AXIS 316
Recommended cable : AU 0038
**   Individual specifications given in the calibration chart
To see the accessories typically included in the above accelerometer sets - click here.
E&OE - specifications subject to change without notice.
* Our standard hire charges are based on a 4-day minimum period, details other options.