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1-axis accelerometer / piezoelectric / shear / miniature
4374 Series

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1-axis accelerometer 1-axis accelerometer - 4374 Series
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Characteristics

  • Number of axes:

    1-axis

  • Technology:

    piezoelectric, shear

  • Other characteristics:

    miniature, high-frequency

  • Frequency:

    Max.: 26,000 Hz

    Min.: 1 Hz

Description

https://www.bksv.com/en/products/transducers/vibration/Vibration-transducers/accelerometers/4374

Type 4374 is a piezoelectric, Planar Shear accelerometer. The integrated side cable terminates with a 10 – 32 UNF connector. Type 4374 is mounted on the object adhesively.

USE SCENARIOS
High-level, high-frequency measurements
Measurements in confined spaces
Measurements on delicate structures
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).

In the Planar Shear design, the piezoelectric element undergoes shear deformation as in the DeltaShear® design. Two rectangular slices of piezoelectric material are arranged on each side of a rectangular centre post. Two masses are held in position using a high tensile strength clamping ring. 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 in Type 4374 and Type 4734-S is PZ 27. Type 4734-L is PZ 23. The housing material is titanium.

CALIBRATIONThe 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%.

Specifications

Frequency range
1 – 26000 Hz

Temperature
-74 – 250 C

Weight
0.75 gram

Sensitivity
0.15 pC/ms^-2

Residual Noise Level in Spec Freq Range (rms) ±
1.85 mg