Geotech News| Geotech Instrument Co., Ltd.

Technological Paradigm Shift: From Conventional Methods to Intelligent ERT Systems

The High-Density Electrical Method, as an advanced evolution of DC Electrical Sounding, achieves 2D/3D Electrical Resistivity Imaging through intelligent electrode array networking. At its core lies Electrical Resistivity Tomography (ERT), which constructs millimeter-precision geological models by analyzing the three-dimensional distribution of subsurface electrical parameters.

Traditional single-channel systems are constrained by low data acquisition efficiency (daily coverage <0.5 km²) and limited detection depth (<500m). The GIM-5 system revolutionizes this with its 5-channel parallel acquisition architecture and patented segmented cabling technology, delivering:

400% efficiency improvement (daily coverage >5 km²)
Detection depth exceeding 1,500m
8x higher data density compared to conventional methods

Core Innovation: Engineering Implementation of Intelligent Acquisition

1. Multi-mode Electrode Management System

Featuring titanium alloy deep-water electrode arrays and bidirectional cascade controllers, the system enables:

IP68 underwater operation (100m depth endurance)
20% electrode fault tolerance
Auto grounding detection (±5Ω accuracy)

Technical Parameter Comparison:

Metric	Conventional Systems	GIM-5
Max Channels	1	5/10 (expandable)
Voltage Accuracy	1%±5μV	0.3%±1μV
Dynamic Range	±24V	±48V
Power Output	800W	3,200W

2. Hybrid Array Synchronization Technology

Breaking through traditional Wenner-Schlumberger array limitations, GIM-5 pioneers the Tripole-Bipole Hybrid Mode:ρa=K⋅IΔV

With dynamically adjusted K-values, this innovation achieves:

30% vertical resolution enhancement (0.1m thin-layer identification)
50% lateral coverage expansion
40% reduction per measurement cycle

Full-scenario Applications: From Mineral Exploration to Urban Underground Space

1. Environmental Engineering Monitoring

In contaminant plume tracking Project, GIM-5’s 4D resistivity imaging demonstrates:

300×300m site scanning in 48 hours
Precise identification of 3 chloride sources (positioning error <2m)
Dynamic diffusion model accuracy R²=0.93

2. Urban Geological Surveys

In Metro Extension Project results using cross-hole measurement:

0.5m³ karst cavity detection at 30m borehole spacing
92% geological anomaly prediction accuracy
60% cost reduction vs traditional drilling

Intelligent Data Processing: Forward Modeling to Dynamic Inversion

1. Forward Modeling Optimization

GIM Studio software integrates FEM-BEM Coupled Algorithms, significantly accelerating modeling:

Complex geology modeling time: 6.8 minutes (vs 42 minutes conventionally)
Grid precision: 0.1m×0.1m×0.1m

2. Inversion Algorithm Advancements

ANN-TD Hybrid Inversion Architecture performance:

Algorithm Type	Resolution Gain	Time Cost	Memory Usage
Conventional LSQ	Baseline	120min	8GB
Neural Network	+40%	25min	3GB
Time-Dynamic	+65%	18min	5GB

Sustainable Engineering Solutions

GIM-5’s modular design enables full lifecycle management:

SPB900 Smart Power Unit: 850WH Li-ion battery with multi-unit series support
Segmented Cable System: 70% replacement cost reduction
OTA Wireless Updates: Firmware upgrades without factory return

Explore Revolutionary GIM Series Now

Visit Product Page Now
https://geotechcn.net/products/electrical-instrument/gim-1-single-channel-intelligent-resistivity-ip-meter%e4%b8%a8high-density-resistivity-tester/

Whether you’re engaged in environmental monitoring, mineral exploration, or urban underground space development, the GIM Series DC Electrical System delivers tailored solutions. Our product page features: