Main Applications
l Long time micro-seismic exploration without guarding
l Three-dimensional earthquake detection for oil gas and coal resources
l Nature earthquake research
l Roadbed, dam, side slope detection (nature surface wave)
Main Features
l Automatic time switch, acquire storage data;
l GPS timing and locating
l Not only work alone but also make up 3D observation;
l Controlled by PDA or computer
Main Technical Specifications
· Signal Using Channels: 3 channels
· A/D Converter: 32 bit
· Sampling Interval: 1 ms, 5 ms, 0 ms, three taps optional
· Preamplifier gain: 1, 32, 64 times optional
· Frequency Response (Bandwidth): 1~60Hz
· Conformity of Amplitude between Channels: smaller than 5%
· Phase Difference between Channels: Less than 0.1ms
· Crosstalk Suppression between Channels: Greater than 100 dB
· Dynamic Range: no less than 125 dB
· Time Stability: 5×10-8
· CF Card Capacity: Industrial 4G
· Water-Proof: 1 m
· Working Temperature: -20°C~40°C
· Power Supply: +7.2V23AH and -7.2V5.2AH
· Volume: Diameter 170mm;Height 160mm
· Power Consumption: in operation: 130 mA; on standby 25 mA
· Weight: 5.7 kg
DSHS-1 Zero Time Receiver
· Receive GPS clock, geographic information, elevation signal, also indicate
· minute and second pulse signal output of clock signals
· Time Signal Record of Detonator Explosion Wire-Break; Lock the current time by leading edge of wire-break signal (lock on the display, accurate to ±0.0001 seconds, and store the time together with geographic information, elevation value)
· 800 time and geographical information can be recorded.
·
· 2Hz Three-component Geophone (at 20°C)
· Free-Running Frequency (Hz): 2±10%
· Coil Resistance: 6040±5%
· Sensitivity (V/cmS-1): 2±10%
· Damping Coefficient: 0.7±10%
· Internal Resistance: 5800±5%
· Insulation Resistance: (MΩ): greater than 10
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