Charge Mode
B&K Type 4393 Piezoelectric Charge Accelerometer, Incl. Cable
Type 4393 is a piezoelectric, DeltaShear®, Unigain®accelerometer with side connector. Type 4393 features M3 receptacle for output connection and has an M3 hole for mounting.
USE SCENARIOS
- High frequency
- Low weight
- Vibration testing and analysis
CHARACTERISTICS
This piezoelectric accelerometer may be treated as a charge source. Its sensitivity is expressed in terms of charge per unit acceleration (pC/g).
The DeltaShear design involves three piezoelectric elements and three masses arranged in a triangular configuration around a triangular centre post. The ring prestresses the piezoelectric elements to give a high degree of linearity. The charge is collected between the housing and the clamping ring. The piezoelectric element used is a PZ 23 lead zirconate titanate element. The housing material is titanium.
CALIBRATION
The sensitivity given in the calibration chart has been measured at 159.2 Hz and an acceleration of 10 g. For 99.9% confidence level, the accuracy of the factory calibration is ± 2%.
Frequency range: 0.1 – 16500 Hz
Temperature: -74 – 250 C
Weight: 2.4 gram
Sensitivity: 0.316 pC/ms^-2
Residual Noise Level in Spec Freq Range (rms): ±0.52 mg
Maximum Operational Level (peak): 5000 g
Electrical connector: M3
Mounting: Stud
Accessory Included: AO 0283
Clip/Stud/Screw included: YQ 2003
Output: Charge-PE
Unigain: Yes
Triaxial: No
TEDS: No
Applications: Miniature
Unit: pC
Resonance frequency: 55 kHz
Maximum Shock Level (± peak): 25000 g