4326A-001 Miniature Triaxial Piezoelectric Charge accelerometer, titanium body with slots, cable not included

Types 4326-A and 4326-A-001 are triaxial piezoelectric ThetaShear® patented accelerometers with three independent outputs for simultaneous high-level measurements in three mutually perpendicular directions. Each transducing element is individually calibrated.

To avoid triboelectrical noise originating in the connector and to provide maximum measurement reliability and confidence, special attention has been paid to the three connectors. Both accelerometers feature three separate, rugged 10 – 32 UNF connectors.

Product Data

Uses

General purpose, multi-axis vibration and shock measurements on low-mass structures and in confined spaces

Features

Triaxial
High sensitivity/weight ratio
Low sensitivity to environmental factors
Electrically insulated for ground-loop protection
High resonance frequency
Easily fitted to different test objects using a selection of mounting clips

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 ThetaShear design involves a slotted cylindrical stanchion holding a central seismic mass, flanked by two piezoelectric plates. This assembly is clamped rigidly by the cover. To ensure optimum accuracy and reliability, no bonding agent other than molecular adhesion is required to hold the assembly together. The ThetaShear design provides a combination of highest measurement stability, excellent sensitivity-to-weight ratio and low sensitivity to extraneous environmental effects.

A remarkable feature of the ThetaShear principle is the fact that the transverse resonance frequency will always be found outside the 10% frequency limit. This ensures minimum interference from orthogonal vibration components in the useful frequency range of the accelerometer. The ThetaShear design also provides excellent immunity to other environmental effects such as base strains, magnetic sensitivity and acoustic fields.

Version

The piezoelectric element used, is the PZ 23 lead zirconate titanate element. Type 4326-A and 4326-A-001 differ from each other in weight and temperature range. The housing is aluminium for Type 4326-A and more robust, but heavier titanium for Type 4326-A-001.

Calibration

The sensitivity given in the calibration chart has been measured at 159.2 Hz with an acceleration of 10 g. For a 99.9% confidence level, the accuracy of the factory calibration is ± 2%.

Mounting

Special effort has been put into making mounting as flexible as possible. For fast and easy mounting, Mounting Clips UA-1408, UA-1473 and UA-1474 can be used. Five of the six surfaces can be used for mounting with adhesive cement or mounting wax. Where threaded holes can be provided in the test piece, Type 4504-A can be mounted from the top via mounting holes in the base. The...

For a full Description and Specifications, see Product Data