Guralp Systems

모델명 : 3ESPCD

제품용도 : 지진계(Weak Motion Seismometer)

3ESPCD

▶SYSTEM

•Configuration / Topology: Triaxial orthogonal (ZNE)
•Feedback: Force feedback

▶SENSOR PERFORMANCE

•Response: 60 s - 100 Hz ( option 120 s to 100 Hz )
•Output sensitivity / Clip Level:  2000 V/ms-1 (2 x 1000 V/ms-1, other options available)

•Peak / Full scale output: Three channels - ±20 V (40 V peak-to-peak) differential
•Cross axis rejection: >62 dB 
•Linearity: >107 dB horizontal, >111 dB vertical 
•Lowest spurious resonance: 140 Hz (vertical)
•Self-noise below NLNM(New Low Noise Model: Peterson, 1993, USGS): 30 s(0.03 Hz) to 16 Hz

•Sensor Dynamic range: >140 dB

▶CALIBRATION

•Type: Pulse, sine wave and broadband
•Calibration controls: Independent signal & enable lines exposed on sensor connector

•MASS / MASS MONITORING

•Locking: Remote or automatic mass locking, unlocking and centring
•Operating tilt range: +/-2.5° from horizontal

▶CONTROL

•Mass control / locking: Lock, unlock, centre

▶CONNECTIONS

•Analogue output: 26-pin military specification bayonet connector

▶POWER

•power voltage range : 10-36VDC

•power consumption : 0.75W

▶PHYSICAL/ENVIRONMENTAL

•Operating temperature: -20 to 65°C

•Operating humidity: 0 to 100%

•Enclosure ingress protection: IP68

•Weight: 8.4kg

▶지진계 모델별 주파수 범위 및 노이즈 비교 자료