GL-AQ4
Triaxial Accelerometer
Main application fields:
1. Strong earthquake observation in free field;
2. Strong vibration observation and health monitoring 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-AQ4 accelerometer inherits the design philosophy of its predecessor, featuring an integrated electromechanical structure with excellent linearity, wide frequency bandwidth, low self-noise, and large dynamic range. Utilizing advanced mechanical and electronic technologies, it boasts a more compact form factor, superior DC temperature stability, and consistent output performance even under varying ambient temperatures, making it suitable for diverse applications.
1) The GL-AQ4 accelerometer connects its external power supply via a 19-pin aviation connector, while its voltage signals are also output through the same connector, employing a balanced two-terminal drive configuration.
2) Its innovative circuit design ensures precise technical parameter consistency, stable performance, and lightweight compact dimensions.
3) The base housing features mounting holes compatible with various accessories for easy installation and replacement.
4) An internal calibration circuit enables remote computer-based inspection and calibration, significantly enhancing testing efficiency.
5) With extended service life and reliable performance, the GL-AQ4 accelerometer requires no special protective measures during transportation, ensuring durability in harsh environments.
6) Feedback technology compensates for mechanical limitations inherent in conventional sensors, effectively addressing nonlinear distortion in elastic measurement components. Its low frequency starts from O hz, can realize a variety of low frequency, ultra-low frequency vibration measurement, suitable for construction, transportation, geology earthquake, ocean, water conservancy, machinery, military, bridge, environment and other engineering vibration measurement.
Technical Parameter
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Structure: three-way integration, mechanical and electronic feedback
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Measurement range: ±4g
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Full scale output: ±10V (differential output)
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Sensitivity: 2.5V/g (dual-ended differential output)
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Dynamic range: >155dB (0.02–2 Hz); >140dB (2–50Hz)
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Bandwidth: DC
250Hz (-3dB); DC100Hz (flat acceleration response) -
Horizontal sensitivity ratio: <1%
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Linearity: better than 0.1%
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Temperature drift: 500×10⁻⁶ gn/°C
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Calibration function: calibration input range -5V ~ +5V
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Power supply voltage: +9~18VDC, single power supply
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Static current: 90mA (when the power supply voltage is +12V)
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Shape and size: 100mm×100mm×62mm (excluding the foot and socket); 110mm×120mm×70mm (including the foot and socket)
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Weight: about 1.5kg
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Operating environment: temperature -20℃ ~ 50℃; humidity <98%
- Protection index: IP67
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