GL-MS10/30/60
Surface Seismometer
Main application fields:
1. Natural earthquake observation of regional seismic network;
2. Detection of earthquake induced by reservoir;
3. Mine earthquake detection;
4. Scientific investigations such as longterm fixed observation and mobile seismic observation;
5. Microseismic observation such as oil and gas exploration.
OVERVIEW
Description
The GL-MS10/30/60 Seismic Sensor is a compact three-component integrated electronic feedback system featuring high sensitivity, wide dynamic range, low power consumption, and compact design. Its integrated three-axis structur e employs capacitive displacement transduction with force-balanced electronic feedback technology, providingan observation frequency band of 0.1/0.033/0.0167 Hz to 80 Hz. The device incorporates three identical mechani cal pendulums, force-balanced feedback circuits, coordinate transformation circuits, and control modules. With a com pact dimensions of 101mm in diameter and 136mm in height, it achieves ultra-low power consumption—typically unde
r 0.4 W in standby mode. The built-in three-axis open-locking pendulum mechanism enables simultaneous unlocking of the UVW (vertical, horizontal, and vertical) axes, significantly enhancing shock resistance. This instrument is suita ble for natural earthquake monitoring in regional seismic networks, reservoir-induced earthquake detection, and both long-term fixed monitoring and mobile seismic surveys.
Technical Parameter
▲Mechanical structure: UVW three-directional ▲Output current:>5mA;
▲Load capacitance:>0.01uF;
▲Power supply voltage: 9~36V;
▲Sensitivity: 9~12 (m/s²)/A.
▲Power consumption: 0. 5W integrated installation;
▲Mode of transduction: displacement transduction;
▲Output signal direction: vertical (UD), east-west (EW), north-south (NS);
▲Output physical quantity: ground motion speed;
▲Bandwidth: 0. 1/0. 033/0. 0167Hz~80Hz;
▲Maximum output signal: ±10V (single end), ±20V (double end);
▲Sensitivity: 2000V/ (m/s);
▲Dynamic range:>140dB;
▲Limiting level: 9.1mm/s@10Hz;
▲Horizontal inhibition ratio: <1%;
▲Parasitism resonance:>150Hz;
▲Anti-tilt capacity: ≤3°;
▲Output resistance: <100Ω;
▲Zero adjustment and monitoring: builtin zero adjustment motor, support command zero adjustment and remote monitoring;
▲Seal chamber size: φ101mm, H136mm
▲Working temperature: -25℃~60℃;
▲Seal chamber material: 304 stainless steel;
▲Interface standard: meet the relevant requirements of DB/T13 ” Ground Vibration Observation Interface and Control”
▲Weight: 3.6kg
▲ Protection level: IP68.
Characteristic curve diagram

Practical application cases


















