3시리즈 지진계

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제품명 3ESPCD
제품용도 지진계(weak motion)
제조사 Guralp Systems
카달로그 다운로드
비고 High performance, low noise, broadband, seismometer with Integrated digitiser and 60 s - 100 Hz response

Force feedback broadband instrument
Lifting handle and all connectors on the top of the instrument
Waterproof and durable with O-ring seals throughout
Quick and easy singlehanded installation

제품상세정보

SPECIFICATION


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:  6000 V/ms-1 (2 x 3000 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: >300 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 controls: Sine, step and broadband calibration via web interface or command-line​

Operating tilt range: +/-2.5° from horizontal

MASS/MONITORING CONTROL

Locking: Remote auto mass lock/unlock

Mass centre: Remotely controlled automatic mass centring

 

DISITISER PERFORMANCE

Digitiser type : Fourth-order sigma-delta 

Digitiser resolution : 24-bit 

Dynamic range : > 132 dB at 20 samples per second

Sample rates: 1 to 1000 samples per second (up to four simultaneous streams with different sample rates available) 

Digital filter types: FIR (linear phase) and IIR (for low latency mode) 

Decimation filters: 501-point FIR, ÷2, ÷4 and ÷5 in configurable sequences 

Output format: GCF 

Anti-aliasing filter at Nyquist: > 160 dB 

Absolute accuracy: < 1% 

Nominal sensitivity: 0.9 µV/count 

Linearity ± 0.5°C 

 

USER INTERFACE / SOFTWARE 

Digitiser control and configuration: Digitiser and sensor control via Güralp Scream! software (free download) and command line

Triggering modes: STA/LTA, level, external, software. Per channel voting and network voting via additional software or hardware. 

 

REAL TIME DATA COMMUNICATION

Interface: Streaming via RS232 serial, optional Ethernet and Wi-Fi 

Protocols: GCF(Scream!)

 

ON-BOARD DATA STORAGE

Internal storage capacity: Flash memory storage options available up to 32GB

Data recording​: GCF

 

POWER

power voltage range : 10-28VDC

power consumption : 1.6W(without GPS or Ethernet)

 

PHYSICAL/ENVIRONMENTAL

Operating temperature: -20 to 65°C

Operating humidity: 0 to 100%

Enclosure ingress protection: IP68

Weight: 9.3kg​

 

지진계 모델별 주파수 범위 및 노이즈 비교 자료e23b16e011d0821bca7886b36b2e9c9c_1549849


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