IGU-16
- 95mm x 103mm x 118mm (without spike)
- 1.1kg(Including internal battery and spike)
- 8GB
- 32GB
- <3.25 hours
- 50 days Continuous@ 1ms
- 100 days Segmented (12hours ON/12hours SLEEP) @ 1ms
- -
- Exchange EB battery
- Natural Frequency : 5Hz
- Spurious Frequency : >170Hz
- Distortion : <0.1%@12Hz, (0° ~ 10°) vertical tilt
- Damping : 0.7
- Open Circuit Intrinsic Voltage Sensitivity : 80 V/m/s (2.03 V/in/s)
- Remark : All parameters are specified at +22°C in the vertical position for vertical geophone and horizontal position for horizontal geophone unless otherwise stated
- Natural Frequency : 10Hz
- Spurious Frequency : >240Hz
- Distortion : <0.1%@12Hz, (0° ~ 10°) vertical tilt
- Damping : 0.7
- Open Circuit Intrinsic Voltage Sensitivity : 85.8 V/m/s (2.18 V/in/s)
- Remark : All parameters are specified at +25°C in the vertical position for vertical geophone and horizontal position for horizontal geophone unless otherwise stated.
- Seismic data channel(s) : 1
- ADC resolution : 32 bits
- Sample intervals : 1, 2, 4 milliseconds
- Preamplifier gain : 0dB to 24 dB in 6 dB steps
- Anti-alias filter : 206.5 Hz @ 2ms (82.6% of Nyquist)Selectable - Linear Phase or Minimum Phase
- DC blocking filter : 1Hz to 10Hz, 1Hz increments or DC Removed
- Operating temperature : -40°C ~ +70°C
- Waterproof : IP67
- Charging Temperature Range : +3°C ~ +45°C
- Maximum Input Signal : ±2.5Vpeak @ Gain 0dB
- Equivalent Input Noise : 0.71μV @ 2ms Gain 12dB(typical)
- Total Harmonic Distortion : <0.0005% @ Gain 0dB
- Common Mode Rejection : ≥100dB
- Gain Accuracy : <1%
- GPS Time Standard : 1ppm
- Timing Accuracy : ±10μs, GPS Disciplined
- System Dynamic Range : 140dB
- Frequency Response : 0 ~ 413Hz
- Remark : All parameters are specified at 2ms sample interval, 31.25 Hz, 25°C, unless otherwise indicated
More about IGU-16
Working Principle
Seismic sensors, also known as seismometers or geophones, are fundamental instruments used to detect and measure ground vibrations caused by seismic events like earthquakes or controlled sources in geophysical exploration. Their operation relies on a clever combination of mechanical and electrical principles to convert ground motion into a usable electrical signal.
At the core of a seismic sensor is a mass-spring system. This system consists of a heavy mass, often referred to as the seismic mass, suspended by a spring or a set of springs within the sensor's housing. This mass is designed to be highly sensitive to even the slightest ground movements.
When seismic waves propagate through the Earth, they cause the ground to move. This motion is transmitted to the sensor's frame. However, due to the principle of inertial motion, the seismic mass within the sensor resists this movement. This resistance to motion creates a relative displacement between the seismic mass and the sensor's frame as the ground moves around the relatively stationary mass.
To translate this relative mechanical motion into an electrical signal, seismic sensors employ a transduction mechanism. A common and effective method is electromagnetic induction. In this setup, a coil of wire is attached to the seismic mass and positioned within a magnetic field generated by a magnet fixed to the sensor's frame. As the seismic mass moves relative to the magnetic field, the coil cuts through the magnetic flux lines, inducing an electrical current in the wire.
The strength of this electrical signal is directly proportional to the velocity or displacement of the seismic mass, which in turn reflects the characteristics of the ground vibration. This generated electrical signal is then typically amplified, digitized, and recorded for subsequent analysis.
Signal analysis is a crucial step. The recorded electrical signals from one or multiple seismic nodes are processed to extract valuable information about the seismic waves. This analysis involves studying the amplitude (strength), frequency (rate of vibration), and arrival time of the waves. By analyzing these characteristics, geoscientists can gain insights into the properties of the subsurface, such as the location and magnitude of seismic events, the structure of geological formations, and the presence of resources.
Applications
SmartSolo develops advanced intelligent geophone nodes, such as the IGU-16, which offer a wide range of applications across seismic exploration and monitoring. These nodes, featuring a smart seismic sensor as their core component (available with 5Hz or 10Hz options), are designed for high performance, reliability, and ease of deployment.
Here are some key applications where SmartSolo nodes excel:
Research and Academic Studies: SmartSolo nodes are widely used in seismology, geophysics, and geology research. Their ability to collect high-quality seismic data enables researchers to conduct in-depth analysis, contributing to a deeper understanding of Earth's subsurface processes and structures.
Oil and Gas Exploration: These nodes provide crucial data for mapping subsurface structures and identifying potential oil and gas reservoirs. Their high sensitivity allows for the detection of subtle seismic signals, improving the accuracy of exploration efforts and optimizing drilling locations.
Earthquake Monitoring: With their low-frequency response options (like the 5Hz sensor), SmartSolo nodes are well-suited for earthquake monitoring and early warning systems. They precisely capture seismic activity, aiding in assessing earthquake magnitudes, understanding fault behavior, and enhancing overall seismic monitoring capabilities.
Environmental and Geotechnical Studies: SmartSolo nodes are instrumental in environmental and geotechnical investigations. They provide critical data for assessing the stability of infrastructure, investigating ground conditions, and monitoring land movements. Their reliability makes them valuable for projects involving soil analysis, landslide monitoring, and construction in seismically active areas.
Structural Health Monitoring: SmartSolo nodes are used in structural health monitoring to assess the integrity and performance of buildings, bridges, and other structures. By monitoring vibrations and ground movements, they help identify potential weaknesses, contributing to the safety and longevity of structures.
Mining and Quarrying: These nodes play a crucial role in mining and quarrying operations. They assist in mapping subsurface geological structures, monitoring ground stability, and optimizing blasting processes. Their accuracy and durability make them essential tools for ensuring safe and efficient mining practices.
The SmartSolo IGU-16 intelligent geophone node, with its advanced smart seismic sensor technology (available in 5Hz and 10Hz configurations), demonstrates exceptional versatility and effectiveness across these diverse applications. With their high sensitivity and robust construction, these nodes empower professionals in various industries to make informed decisions, optimize operations, and gain a deeper understanding of the Earth's subsurface dynamics.
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