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VolksMeter II Seismometer/Tiltmeter
Specifications |
Configuration:
1 or 2 horizontal channels, pendulum with Symmetric Differential Capacitive
sensors
Outputs, Acceleration/Tilt/Time stamp
Data Sensitivity, Acceleration: 1 part in 16.7 million across a range of ± 0.0034g Sensitivity, Tilt: 1 part in 16.7 million across a range of ±3.55mRad (±2°) Dynamic Range: >140dB Bandwidth: ~40Hz to DC Natural frequency, f0: 0.92Hz Note: Sensitivity (resolution) is inversely proportional to sample rate. For 40Hz max., a sample rate of 80 samples per second is required. At this sample rate, only 15 bits (1 part in 32,000) resolution is available due to noise considerations, for full 23-bit + sign resolution (1 part in 16.7million) the sample rate must be limited to 10 samples per second or less. At a 10 s/sec rate, the maximum frequency is 5Hz Linearity: Due to the nature of the sensor and the limited travel of the moving plate, the output is inherently linear across the range of motion.
Power Requirements: 9-24VDC Note: Current draw is a function of supply voltage and the presence or absence of the GPS option
A 110VAC input, 15VDC/500mA output, power supply is included with the VolksMeter. The user-supplied support computer will have power requirements of its’ own. A "Universal" (110-240VAC) AC input power supply is available as an option: VMII-UACA. Environmental Characteristics Operating Temperature: +5°C to +55°C (41°F to 131°F) non-condensing. Storage Temperature: -40°C to +85°C (-40°F to 185°F) non condensing Physical Characteristics Included with standard models:
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SPECIFICATIONS ARE SUBJECT TO CHANGE WITHOUT NOTICE |
16009 Arminta Street, Van Nuys, CA 91406 USA - 818-780-1800 - FAX 818-780-1978 - http://rllinstruments.com |
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