The Jewell Instruments LSB Series is a precision force-balanced accelerometer designed for general-purpose acceleration measurement across industrial, commercial, and aerospace applications. With selectable full-scale ranges from ±0.5G to ±20G, it delivers accurate DC response for both static and dynamic measurements.

Built on the proven LS Series platform, these linear accelerometers utilize solid-state, closed-loop, force-balanced technology. This design achieves accuracy, stability, and reliability that are orders of magnitude higher than open-loop alternatives, making them ideal for inertial guidance, navigation, and control systems. The operating principle employs a torque-balanced mass: linear acceleration displaces an unbalanced mass, generating an electrical signal that is amplified and fed back to a torque generator, restoring equilibrium. This closed-loop configuration ensures exceptional linearity and low hysteresis.

The LSB Series offers robust performance in demanding environments. Key technical features include a wide bandwidth of up to 200Hz with 0.6 damping ratio, high resolution exceeding 20 µg at 10G full scale, and a fully conditioned ±5.0V output with ±1% accuracy. The sensor operates reliably over an extended temperature range of -55°C to 95°C.

Typical applications include:

• Radar leveling and stabilization
• Fire control systems
• Attitude heading and reference systems (AHRS)
• Missile orientation and guidance
• Autopilot systems
• Vehicle performance testing

Features

• Full-scale ranges: ±0.5G to ±20.0G
• Bandwidth: up to 200Hz with 0.6 damping ratio
• High resolution: >20 µg at 10G full scale
• Output: ±5.0V (±1% accuracy)
• Operating temperature: -55°C to 95°C (-67°F to 203°F)
• Proven reliability in satellite and aerospace applications
• Solid-state, closed-loop, force-balanced design