GL-A4
Triaxial Accelerometer
Main application fields:
1. Strong seismic observation in free field ;
2.Strong vibration observation and health monitoring of structures of buildings and structures;
3. Observation of manual blasting;
4. Vibration monitoring of dams, Bridges, stations, tunnels and other facilities;
5. Site seismic safety assessment, etc
OVERVIEW
Description
The GL-A4 accelerometer features a compact mechatronic design, with its three-axis orientation and force balance feedback circuits housed within a sealed aluminum enclosure measuring 120mm×120mm×65mm. The specially designed horizontal adjustment bolts and central mounting holes allow secure fixation with just two bolts, ensuring simple installation. Utilizing force balance electronic feedback technology, the GL-A4 delivers exceptional performance with a wide dynamic range, broad frequency bandwidth, and excellent linearity. Its dualended balanced signal output effectively reduces power interference from industrial frequency sources, while the built-in 12V single-power supply and integrated DC/DC converter enhance anti-interference capabilities.
Acalibration circuit enables on-site verification of the accelerometer’s transfer function through a data logger,
simplifying field deployment and system integration. With a maximum measurement range of 4g, the GL-A4 accelerometer is ideal for free-field seismic monitoring, building structure analysis, controlled blasting testing, site safety evaluation, and vibration monitoring in critical infrastructure such as dams, bridges, and tunnels.
Technical Parameter
▶ Structure: three-way integration, force balance electronic feedback;
▶ Bandwidth: DC~250Hz;
▶ Sensitivity: 2.5V/g;
▶ Measurement range: ±4g;
▶ Full scale output: ±20V (differential);
▶ Dynamic range:>150dB;
▶ Horizontal sensitivity ratio: <1%;
▶ Natural frequency: 100Hz;
▶ Linearity error: <0.1%;
▶ Zero drift: 0. 0005g/℃;
▶ Calibration input: ±5V (maximum);
▶ Damping control function: yes;
▶ Power supply voltage: 8V~30V, single power supply;
▶ Static current: 35mA, when the power supply voltage is 12V;
▶ Working environment: temperature: -20℃~60℃; humidity: less than 90%;
▶ Shape size: 120 mm×120 mm×65 mm;
▶ Weight: About 2kg
Practical application cases

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