Brüel&Kjaer
4381

The Brüel & Kjaer 4381 is a Piezoelectric Charge Accelerometer ( DeltaShear®, Unigain® ), with side connector, cable included.
The 4381 features 10 - 32 UNF receptacle for output connection and can be mounted on the object by means of a 10 - 32 UNF threaded steel stud.

Features:

• General purpose
  
• High sensitivity
  
• Low-level, low-frequency measurements
  
• Frequency range 0.1....4800 Hz
  
• Sensitivity 100 pC/g
  
• Temperature range: -74....250 °C (-101.2....482.0 °F)

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.

Please find a corresponding data sheet here.