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Vehicle-mounted type transient electromagnetic quick exploration device and measurement method

A transient electromagnetic, vehicle-mounted technology, applied in the field of geophysical exploration equipment and measurement, can solve the problems of low work efficiency, high cost of on-site detection, consistency of device layout parameters, poor reliability, etc., and achieve high work efficiency and high resolution Improve the effect of convenient construction

Active Publication Date: 2014-01-08
ANHUI HUIZHOU GEOLOGY SECURITY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In conventional TEM prospecting, the layout of excitation and receiving observation systems is done manually, so the conventional TEM prospecting method has low work efficiency and high on-site detection cost, which restricts the efficient and economical development of TEM technology.
Moreover, human factors have a great influence on the moving arrangement of the measurement device, which directly leads to poor consistency and reliability of the arrangement parameters of the device, thus affecting the accuracy of transient electromagnetic detection

Method used

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  • Vehicle-mounted type transient electromagnetic quick exploration device and measurement method
  • Vehicle-mounted type transient electromagnetic quick exploration device and measurement method
  • Vehicle-mounted type transient electromagnetic quick exploration device and measurement method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Embodiment one: if figure 2 As shown, the target object to be detected is concrete on the shallow surface, and a small mobile vehicle is used; the transmitting and receiving device 4 adopts a transmitting and receiving integrated machine and is arranged on the small mobile vehicle, which combines the functions of the transmitter and receiver; the host 5 adopts a shape and size like a mobile phone The form of the device; the transmitting and receiving integrated machine and the host 5 are connected wirelessly or wired; the transmitting coil 3-1 and the receiving coil 3-2 adopt the form of a small or miniature coil device and are fixed on the fixed frame 2 and placed on a small mobile vehicle.

Embodiment 2

[0040] Embodiment two: if image 3 As mentioned above, the difference from the first embodiment lies in that the objects to be detected are shallow pipelines, dams, subways, etc., and medium-sized mobile vehicles are used. The transmitter, receiver and host are integrated into one machine, which is installed on a medium-sized mobile vehicle. The main frame combines the functions of the transmitter and the receiver; the transmitting coil and the receiving coil adopt the form of a multiple receiving device and are fixed on the fixed frame 2 and placed on a medium-sized mobile vehicle.

Embodiment 3

[0041] Embodiment three: as Figure 4 As shown, the difference from Embodiment 1 lies in that the detected object is a goaf with a large depth, etc., and a large mobile vehicle is used. The transmitting coil 3-1 is placed on the periphery of the detection area. The transmitting coil 3-1 adopts a single-turn or multi-turn high-power coil, and its size range: 0.5km*0.5km-3km*3km; the receiver 8 and the receiving coil 3-2, Placed on the mobile vehicle 1, the mobile vehicle 1 performs mobile measurement in the detection area; the receiver 8 integrates the functions of the host computer; the transmitter and receiver are placed separately, and the transmitting coil 3-1 and receiving coil 3-2 are also placed separately, And before the exploration operation, set the synchronization information such as the time and the number of rotations of the roller in the transmitter and receiver.

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Abstract

The invention relates to a vehicle-mounted type transient electromagnetic quick exploration device and measurement method. The vehicle-mounted type transient electromagnetic quick exploration device comprises a transmitting and receiving device and a host machine in communication with the transmitting and receiving device. The transmitting and receiving device is composed of a transmitter and a receiver, wherein the transmitter is connected with transmitting coils, and the receiver is connected with receiving coils. The receiver or the transmitter and the receiver are arranged on a moving vehicle. The receiving coils or the transmitting coils and the receiving coils are fixed through a fixing frame and arranged on the moving vehicle. Idler wheel trigger sensors are arranged on wheels of the moving vehicle and connected with the transmitter. A GPS positioning module is arranged in the host machine. According to the vehicle-mounted type transient electromagnetic quick exploration device, detection work can be carried out efficiently, and construction is convenient; both earth surface superficial layer detection and deep layer detection can be carried out; the receiving coils can be used for receiving Z-components of a secondary induced magnetic field by utilizing a single horizontal coil and also can be used for observing Hx-components and Hy-components of secondary field signals by utilizing a vertical coil, the resolution ratio is high, precise exploration can be achieved, and positions and development scales of target anomalous bodies can be determined.

Description

technical field [0001] The invention relates to the field of geophysical exploration devices and measurement methods, in particular to a vehicle-mounted transient electromagnetic rapid exploration device and measurement method. [0002] Background technique [0003] At present, unfavorable geological problems such as groundwater investigation, underground solid waste and pollutant detection, dyke quality inspection, concrete inspection, urban pipeline detection, and underground fractures and fragments in urban buildings are emerging one after another. If timely detection is not carried out, there will be many hidden dangers. For example, in the quality inspection of dams, due to poor construction quality of dams, uneven settlement caused by foundation collapse, and biological erosion, there are many hidden dangers in the dam, such as leakage, cracks, and landslides. Some hidden dangers exist in the dyke body, and some In overburden or shallow foundation. [0004] Transi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01V3/165
Inventor 潘乐荀曹煜杨胜伦李准胡雄武吴昭陈光明郝志超
Owner ANHUI HUIZHOU GEOLOGY SECURITY INST
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