Type 4391 is a piezoelectric, DeltaShear®, Unigain® accelerometer with top connector. Type 4391 features a TNC receptacle for output connection.
The accelerometer can be mounted on the object by means of a 10-32 UNF threaded steel stud.
- Shock and vibration measurement and analysis
- Vibration monitoring
- Modal and structural analysis
- Vibration test control
- Production and quality control
This accelerometer may be treated as a charge source. Its sensitivity is expressed in terms of charge per unit acceleration (pC/ms–2, pC/g). The DeltaShear design consists of three piezoelectric elements
and three seismic masses arranged in a triangular configuration around a triangular centre post. They are held in place by a clamping ring that isolates the configuration from the base. The ring also prestresses the piezoelectric elements to give a high degree of linearity.
This design provides a high sensitivity-tomass ratio, a relatively high resonance frequency and high isolation from base strains and temperature transients. The piezoelectric element used in Type 4391 is a PZ 23 lead zirconate titanate element, and the housing material is titanium.
Type 4391 includes the following accessories:
- Carrying box
- Calibration chart
- YQ-2960: Set screw, 10 – 32 UNF
- Freq. range
- 0.1 – 10000 Hz
- -60 – 180 ℃
- 16 gram
- 1 pC/ms^-2
- Residual Noise Level in Spec Freq Range (rms) ±
- 0.23 mg
- Maximum Operational Level (peak)
- 2000 g
- Accessory Included
- AO 0231
- Clip/Stud/Screw included
- YQ 2960
- Resonance frequency
- 40 kHz
- Maximum Shock Level (± peak)
- 2000 g