Description
Seismic Instrument - SE3NT Microfractures Seismic Surveying
System
Function:
Microtremor could be divided into two types: natural sources and
man-made sources.
Natural sources of microtremors arise primarily from wind, ocean
waves, volcanic activity, tectonic activity, surface rock migration
.
Man-made sources of microtremors primarily arise from means of
transportation, machinery, production, and artificial fracturing
and blast mining.
SE3NT Microtremor Monitoring System is specifically developed for
the monitoring and testing of various Microtremors , widely used in
environmental disaster monitoring, microtremor exploration Etc.
The SE3NT is composed of the wireless acquisition unit (RSU),
on-site substation (CSU), and remote control host computer
(KCU).
Application:
Building and structure seismic evaluation and design , foundation
classification, and foundation improvement , landslide monitoring ,
geothermal surveying , illegal mining surveillance, goaf
investigation, hydraulic fracturing , carbon dioxide sequestration
monitoring, orebody water migration etc.
Specifications:
1. Channel NO: 3
2. Frequency Range: 0 - **0 Hz
3. Dynamic Range: **6 dB
4. A/D converter: ΔΣ*4 bit
5. Sampling Interval: *0, *0, *0, **0, **0, ***0 Hz
6. Record Length: >= 1GB/ch
7. Max Input Voltage: *0 V (G=1)
8. Pre-amplifier Gain: G=1, 2, 4, 8, *6, *2, *4
9. Noise: 0.6 uV
*0. Input Impedance: *0 kOhm
*1. Built-in Core Processor: ARM*9
*2. Built-in GPS: timing error *0 ns, positional accuracy 2.5 m,
sensitivity ***2 dBm (operable in densely wooded areas)
*3. Built-in Wireless Communication: 2.4 GHz, line of sight range
3.2 km, actual range in mountainous terrain **0 m (can select GPRS
remote communication).
*4. Memory: 4 - *6 GB SD card
*5. Trigger: event-based, timing-based, or planned (if event-based,
can pre-collect *******4 sample points)
*6. Average Power Consumption: **0 mA operating, *0 mA standby
*7. Battery: 7.2V/8.8Ah, *0 hours operating time or **0 hours
standby
*8. Size: **0 x **0 x *0 mm
*9. Weight: **0 g
*0. Operating Conditions: **0 to *5 degrees Celsius, rainproof
