CME-6011-ND

Description

The СМЕ-6011ND, a 3-component broadband molecular-electronic digital force balanced seismometer (hereinafter referred to as ‘seismometer’ or ‘instrument’) is designed for recording the Earth’s surface vibrations in 3 orthogonal directions. The instrument can be used both for permanent seismic stations and for portable field installations.

This seismometer contains 3 identical high-sensitive molecular-electronic sensors – transducers arranged along the three orthogonal axes denoted in picture 1 as Z, N and E and equipped with force feedback, an amplifier’s electronic board (later referred to as “analog subsystem”) and an autonomous wireless data logger’s board (later referred to as “digital subsystem”).

All parts are fixed on a single base and placed into a protecting external case. The feedback coil of each transducer may act as a calibration coil and let form and control the standard sensor’s responses.

FIELDS OF APPLICATION

  • SEISMIC MONITORING NETWORKS
  • WEAK MOTION MEASUREMENTS
  • SEISMOLOGICAL RESEARCH
  • EARTHQUAKE DETECTION AND MEASUREMENT
  • MICRO ZONING
  • SOIL MECHANICS

Spesification

Spesifications
Electrical Specifications
Supply voltage, main source 12/24 V DC nominal (9 – 36 V permissible range)
Supply voltage, auxiliary source (USB) 5 V DC nominal (4.5 – 5.5 V permissible range)
Power consumption* from the main source during stand-alone recording nominal / peak 1200 mW / 3250 mW
Power (Current) consumption** from the auxiliary source nominal / peak 650 mW (130 мА) / 900 mW (180 мА)
 
Mechanical Specifications
Connector types MS-3102 10-pin multipurpose male connector SMA-M for an active/passive GPS antenna SMA-M for a Wi-Fi antenna USB-B – a high-speed USB port
Weight 7.0 kg
Dimensions Diameter: 204 mm Height (handle excluded): 200 mm Height (handle included): 238 mm
Case material Aluminum/stainless steel
 
Analog Subsytem
Sensor type Molecular-electronic seismic sensor
Axes (sensors) Galperin configuration Three identical transducers oriented at 45 to the vertical axis and of 120 with respect to each other in horizontal plane.
Axes (output axes) 3 Cartesian axes – Up (Z), North (N), East (E)
Conversion coefficient 2000 V/(m/sec)
Output signal type analog, differential
Clip level ± 20 V (or ± 10 mm/sec)
Bandwidth (options) 60 sec (0.0167 Hz) – 50 Hz 30 sec (0.033 Hz) – 50 Hz
Maximum installation 15º
Temperature range (options) - 12..+55ºС - 40..+55ºС (low temperature)
Output impedance 1000 Ohm
Self noise at 1 Hz 2.5 nm/sec (5.0 μV)
Dynamic range at 1 Hz 132 dB
Integral noise in the band 0.0167 (60 sec) – 50 Hz 0.1 (10 sec) – 20 Hz 36.6 nm/sec (71.2 μV) 9.0 nm/sec (18 μV)
Cross-axis coupling -60 dB

Features

  • Frequency Range: 0.033 Hz (30 Sec) – 50 Hz
  • Sensitivity: 2000 V / (m/sec)
  • Clip Level: 7.5 mm / Sec
  • Noise Level (1 Hz): 2.5 nm / Sec (5.0 µV)
  • Dynamic Range: 127 dB @ 1Hz
  • Integrated Digital Recorder
  • Compact Design
  • Easy Configuration & Installation
  • Low Power
  • Force-Balance Feedack

Reviews

There are no reviews yet.

Be the first to review “CME-6011-ND”

Your email address will not be published. Required fields are marked *