Geotech Instruments, LLC GS-13 Short Period seismometer 短周期地震仪
Mode of Operation
Convertible - vertical and horizontal
Natural Frequency
Adjustable 0.75 to 1.1 Hz
Tilt
Operates within 4° of vertical at 0.8 Hz natural frequency
Inertial Mass
5 kg (11.0 lbs.) nominal
Temperature Range
-51° to +60°C (-60° to +140°F)
Transducer
Type
Moving coil (velocity)
Damping
Electromagnetic
Generator Constant
629 V/(m/sec) / 2180 V/(m/sec)
Coil Resistance*
3600 ohms ±10% @ 25°C /
9100 ohms ± 700 ohms @ 25°C
Maximum Mass Travel
6.00 mm (0.24 in.) peak-to-peak
Calibration Coil
Motor Constant
0.1975 ±0.002N/A / 4.5 ±0.29N/A
Resistance
23 ohms ± 3 ohms @ 25°C (77°F)
CDR is 6300 ohms @ 1Hz /
29 ohms ± 2 ohms @ 25°C (77°F)
83 kohms ± 39 kohms @ 1 Hz
Allowable Current
Peak Instantaneous：100 mA
Sustained：10 mA
Geotech Instruments, LLC GS-13 Short Period seismometer 短周期地震仪
询价采购Geotech Instruments, LLC GS-13 Short Period seismo
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