GL-P2B
Triaxial Accelerograph
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;
6.Emergency mobile earthquake observation,earthquake scientific investigation,earthquake early warning monitoring,land slide and rock fall monitoring;
7. Build a rapid earthquake intensity reporting and earthquake early warning network;
8. Preventive conservation of cultural relics and environmental monitoring system for cultural relics facilities.
OVERVIEW
Description
The GL-P2B incorporates a high-sensitivity triaxial MEMS accelerometer module. Its data acquisition unit is a compact version of the EDAS-24GN, sharing identical designs in ADCs and ARM9-based Linux-embedded systems. The device also features enhanced network NTP time synchronization for improved convenience. Capable of automatic earthquake event detection, intensity calculation, and automated estimation of parameters like Tc and Pd, it generates continuous waveform data. Through network or SMS transmission, it automatically publishes earthquake-triggered alerts, intensity measurements, and instrument status updates.
Technical Parameter
Sensor
● Bandwidth: DC–80Hz
● Dynamic range: greater than 105dB
● Full scale: 2g
DA
● ADC: 24 bits
● Sampling rate: 50sps, 100sps, 200sps, 500sps
● Digital filter: linear phase FIR / minimum phase FIR
Time Service
● Timing: GNSS timing unit / network timing
● Time synchronization error: less than 0.05ms (GPS timing)
● Clock stability: better than 0.5ppm
Data Recording
● Storage medium: 8GB CF card
● Recording method: continuous waveform recording
● Event trigger: STA/LTA, level, timing
● Intensity calculation: embedded Yuan’s intensity algorithm (replaceable), results within 2 seconds after earthquake
Data Communication Interface
● Interface: LAN Ethernet, RS-232 serial interface
● Protocol: TCP/IP
Overall Machine Performance
● Output sensitivity: 500 count/gal
● Diagnosis and alarm: automatic system diagnosis (voltage, power, battery, recording line, time status, storage, ambient temperature) with automatic alarm on errors
● Data transmission mode: real-time data flow, supports multiple connections, FTP download
● Power supply: external +12V (10V–20V), average power consumption <3W
● Working environment: temperature –20℃ to +60℃, relative humidity 98%
● Size: 150mm × 150mm × 68mm
● Weight: 1.7kg













