Soil pore water conductivity multi-point automatic monitoring apparatus

An automatic monitoring and porosity technology, applied in soil material testing, material inspection products, material resistance, etc., can solve the problem of inability to achieve multi-point testing and long-term monitoring on the test site, difficulty in sample preparation, and insufficient attention to soil pollution monitoring. and other problems, to achieve the effect of rapid test multi-point remote monitoring and long-term monitoring

Inactive Publication Date: 2008-07-09
ZHEJIANG UNIV
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Problems solved by technology

[0002] At present, in terms of pollution prevention and control measures, people pay more attention to technical measures such as engineering restoration, biological restoration, physical and chemical restoration, electrokinetic restoration, etc., and do not pay enough attention to the monitoring of soil pollution. Most of the soil pollution testing methods in engineering are indoor. Testing and pollution monitoring instruments are limited to complex testing

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  • Soil pore water conductivity multi-point automatic monitoring apparatus
  • Soil pore water conductivity multi-point automatic monitoring apparatus
  • Soil pore water conductivity multi-point automatic monitoring apparatus

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Embodiment Construction

[0014] As shown in Fig. 1 and Fig. 2, in the soil pore water conductivity multi-point automatic monitoring device of the present invention, n sensors 5 with the same structure are respectively connected with the coaxial multiplexer 3 through the coaxial cable 4 by the BNC joint, and the same The multiplexer 3 is excited by electromagnetic waves, and the receiver 2 is connected to the PC 1; each sensor 5 includes a coaxial cable outer conductor 5.1, a coaxial cable inner conductor 5.2, an epoxy resin box 5.3, a first test probe Needle 5.4, the second test probe 5.5 and the third test probe 5.6; the second test probe 5.5 is connected to the inner conductor 5.2 of the coaxial cable; the first test probe 5.4 and the third test probe 5.6 are equidistantly distributed on the On both sides of the second test probe 5.5, the first test probe 5.4 and the third test probe 5.6 are connected to the outer conductor 5.2 of the coaxial cable, and the connection points are placed in the epoxy r...

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Abstract

The invention discloses a multipoint automatic conductivity monitoring device of pore water in soil. N sensors with identical structure are respectively connected with coaxial multiplexers at BNC joints via coaxial cable, the coaxial multiplexers are excited by electromagnetic wave and a receiver is connected with a PC computer. Each sensor includes external conductors of coaxial cables, internal conductors of coaxial cables, an epoxy resin box, a first test probe, a second test probe and a third test probe, wherein the second test probe is connected with the internal conductors of the coaxial cables; the first test probe and the third test probe are distributed on both sides of the second test probe at equal distance and are connected with the external conductors of the coaxial cables; and the connection joints are disposed in the epoxy resin box. The conductivity EC omega of pore water in soil can be monitored by PC software to evaluation the pollution degree of the soil. The method is specifically suitable for long-time remote-control multipoint monitoring in sanitary landfill under high corrosion condition, and has the advantages of rapid monitor, convenient operation and high automation degree.

Description

technical field [0001] The invention relates to a detection device utilizing electromagnetic wave reflection, in particular to a multi-point automatic monitoring device for soil pore water conductivity. Background technique [0002] At present, in terms of pollution prevention and control measures, people pay more attention to technical measures such as engineering restoration, biological restoration, physical and chemical restoration, electrokinetic restoration, etc., and do not pay enough attention to the monitoring of soil pollution. Most of the soil pollution testing methods in engineering are indoor. Testing and pollution monitoring instruments are limited to complex testing instruments (HP network analyzers, HP impedance analyzers) used in indoor tests. The disadvantages are 1: it is difficult to prepare samples and require long-term indoor experiments; 2. It is impossible to conduct on-site testing. real-time monitoring. [0003] In addition, the current soil polluti...

Claims

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Application Information

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IPC IPC(8): G01N27/04G01N33/24
Inventor 陈仁朋陈云敏许伟王进学
Owner ZHEJIANG UNIV
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