Specifications

Deep Digital Seismograph
1,high sensitivity
2,high acccuracy
3,easy to operate

 DSHS-1 Deep Digital Seismograph

 

 

Main Applications

 

Long time micro-seismic exploration without guarding

Three-dimensional earthquake detection for oil gas and coal resources

Nature earthquake research

Roadbed, dam, side slope detection (nature surface wave)

Main Features

 

Automatic time switch, acquire storage data;

GPS timing and locating

Not only work alone but also make up 3D observation;

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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