Piezoelectric Accelerometer A/23/E

The A/20 is a general-purpose piezoelectric charge output accelerometer designed for vibration analysis and shaker testing, including applications requiring higher operating temperatures. Built using DJB’s Konic Shear® sensing technology and welded titanium construction, it delivers stable measurements with reduced long-term cross-axis error.

Key specifications

• Sensitivity: 30 pC/g nominal
• Weight: 12.5–27 g (variant dependent)
• Temperature range: -55°C to 250°C (optional to -71°C)

Model variations

• A/20
• A/20/T
• A/20/TC

Design and construction

The A/20 range uses DJB’s unique Konic Shear® piezoelectric sensing element for strong performance and reduced long-term cross-axis error. The range includes side-entry and top-entry tapped-base models with all-welded titanium construction. The A/20/TC version includes a hermetically sealed top-entry TNC connector. Welded internal connections across all versions support reliable operation in harsh environments.

Relative freedom from strain-induced error helps reduce low-frequency measurement uncertainty.

Features

• Ultra-lightweight design: 12.5 g (A/20, A/20/T)
• Higher mass option: 27 g (A/20/TC)
• Compact dimensions: 14.3 (A/F) × 16.6 mm
• Operating temperature: -55°C to 250°C (optional to -71°C)
• Connector options: 10-32 UNF Microdot, TNC
• Konic Shear® piezo-ceramic sensing element
• Base tapped 10-32 UNF × 4 mm deep

Applications

• Modal analysis of lightweight structures
• Automotive
• Aerospace
• Machine monitoring
• Condition monitoring
• Impact testing
• Industrial
• Vibration shaker testing
• Structural testing

How to reach us

Let us know what you're working on and how we can help.

• Phone: +44 (0)1638 712 288
• Email: Email the DJB sales team
• Hours: 9 am – 5 pm (UK time), Monday to Friday