Galvanized steel coil is a material produced by continuous hot-dip galvanizing process with hot-rolled steel strip or cold-rolled steel strip as the substrate. Hot dip galvanized coil supplied in coil form after coiling. Therefore, galvanized steel sheet (coil) can be divided into hot-rolled galvanized sheet coil and cold-rolled hot-dip galvanized sheet coil. They are mainly used in the fields of construction, household appliances, automobiles, containers, transportation and household industry. Especially in steel structure construction, automobile manufacturing, steel warehouse manufacturing and other industries. Their main characteristics are: strong corrosion resistance, good surface quality, benefit from deep processing, economy and practicality, etc.
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**DUK-2A 120 Channel Electrical Resistivity Tomography Equipment – Underground Gold Detector**
**Model No.: DUK-2A Resistivity Imaging**
This advanced 120-channel electrical resistivity tomography (ERT) system, known as the DUK-2A, is a powerful tool for underground exploration. It is widely used in gold detection, water resource identification, and geological surveys. The equipment supports various applications such as groundwater detection, land subsidence analysis, fault zone mapping, and mineral exploration.
**Main Applications:**
1. This device is extensively applied in the exploration of both metallic and non-metallic mineral resources, energy sources, urban geophysical surveys, and engineering projects like railway and bridge construction. It utilizes apparent resistivity and induced polarization methods to provide accurate data.
2. It helps locate groundwater sources, addressing drinking water issues for humans and animals, as well as industrial and agricultural water needs. It also identifies hidden risks in dam foundations, flood control dikes, fault zones, collapse columns, landslides, and coal mining voids. Additionally, it assists in geothermal exploration and hydrological and geological investigations.
3. Our factory provides accessories such as 60 or 120-channel multiplex electrode switches, which can be integrated into multi-electrode resistivity survey systems for enhanced performance and flexibility.
**Receiving Part Specifications:**
1. Measuring Voltage Range: -6000mV to +6000mV
2. Measuring Voltage Resolution: 0.01 mV
3. Measuring Voltage Accuracy: ±5% (at Vp > 10mV), ±1 digit; ±1% (at Vp < 10mV), ±1 digit
4. Apparent Polarizability Accuracy: ±1%, ±1 digit
5. Measuring Current Range: 0–5000 mA
6. Measuring Current Resolution: 0.01 mA
7. Measuring Current Accuracy: ±5% (at Ip > 10mA), ±1 digit; ±1% (at Ip < 10mA), ±1 digit
8. Input Impedance: ≥50MΩ
9. Interference Suppression on 50Hz Power Frequency: Better than 80dB
**Transmitter Part of Geophysical Equipment:**
1. Maximum Transmitting Power: 4500 W
2. Maximum Power Supply Voltage: 900V
3. Maximum Power Supply Current: 5A
4. Equipped with over-voltage and over-current protection systems
5. Power Pulse Width: 1–60 seconds, Duty Cycle 1:1
**Product Images:**
1. **Resistivity Transmitter and Receiver**
2. **Electrodes**
3. **English Software Interface**
**Keywords:** Schlumberger Resistivity Meter, Dipole-Dipole Surveys, Ground Water Detector, Resistivity Tomography, Electrical Resistivity Tomography, Resistivity Imaging, Underwater Detection, Geological Survey, Mineral Exploration, Engineering Geology.