Sound and Vibration Instrument Hire and Calibration

Bruel &Kjaer 4384 Accelerometer Specifications

B&K 4384 : Accelerometer	£ 4 a day *

Piezoelectric charge accelerometer

Charge sensitivity : 1 pC/ms^-2 or 9.8 pC/g ± 2 %   **
Voltage sensitivity : 0.8 mV/ms^-2 or 8 mV/g ± 2 %   **
Mounted resonance : 42 kHz
Frequency range - 5 % : 0.2 Hz to 9100 Hz
Frequency range - 10 % : 0.1 Hz to 12600 Hz
Capacitance - typical : 1200 pF including supplied cable
Max transverse sensitivity : < 4 %
Transverse resonance : 15 kHz
Piezoelectric material : Pz23
Construction : Delta shear
Typical temperature transient sensitivity : 0.4 ms^-2/°C
Typical magnetic sensitivity (50 Hz to 0.03T) : 4 ms^-2/tesla
Typical acoustic sensitivity (154 dB SPL) : 0.01 ms^-2
Minimum leakage resistance at 20 °C : 20 GΩ
Ambient temperature range : -74 °C to 250 °C
Maximum operational shock (Peak) : ± 200 kms^-2
Maximum continuous sinusoidal acceleration (Peak) : 60 kms^-2
Maximum acceleration (Peak) with mounting magnet : 1.5 kms^-2
Electrical Connector : 10-32 UNF, miniature coaxial, top entry
Mounting thread : 10-32 UNF, 3.2 mm deep
Mounting torque : 1 Nm, max = 2 Nm, min = 0.5 Nm
Dimensions - body : 13.5 mm diameter
Dimensions - overall height : 19 mm excluding top connector
Dimension - across base flats : 14 mm - spanner size
Weight : 11 grams
Case Material : Titanium ASTM Grade 2
Recommended cable : AO 0038
**   Individual specification given in the calibration chart
E&OE - specifications subject to change without notice.
* Our standard hire charges are based on a 4-day minimum period, details other options.