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Wireless soil heavy metal content detecting system

A detection system, heavy metal technology, applied in the direction of measuring devices, instruments, material analysis through electromagnetic means, etc., can solve the problem of inflexible and convenient operation

Active Publication Date: 2019-03-22
NANTONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But this device sometimes still seems to be not flexible and convenient to operate

Method used

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  • Wireless soil heavy metal content detecting system
  • Wireless soil heavy metal content detecting system
  • Wireless soil heavy metal content detecting system

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Embodiment Construction

[0051] In order to facilitate the understanding of the present invention, the technical solution of the present invention will be specifically introduced below in conjunction with examples.

[0052] Such as figure 1 Shown, a kind of detection system based on DDS detection soil heavy metal content comprises:

[0053] Sensor, direct digital frequency synthesizer (Direct Digital Synthesizer, DDS), current sampler, instrument amplifier, A / D converter, interface circuit, MCU (micro control unit, MicroController Unit; MCU, also known as single-chip micro Computer), wireless sending / receiving module, temperature controller, power module, and handheld mobile intelligent terminal; The sensor also has built-in electric heater and thermocouple; Power module is MCU, sensor, direct digital frequency synthesizer, Current sampler, instrument amplifier, A / D converter, interface circuit, wireless sending / receiving module, and temperature controller provide electric energy; when testing, the s...

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Abstract

The invention provides a wireless soil heavy metal content detecting system. The wireless soil heavy metal content detecting system comprises a sensor, a DDS, a current sampler, an instrument amplifier, an A / D converter, an interface circuit, an MCU, a wireless transmitting / receiving module, a temperature controller, a power module, and a handheld mobile intelligent terminal. An electric heater and a thermocouple are further installed in the sensor. In a detecting process, the sensor is filled with a collected soil sample. Soil heavy metal content can be inverted through a Cp-f curve of the soil sample and a shape of a Tan(Delta)-f curve obtained by measuring. A circuit structure is further simplified, and cost is reduced.

Description

technical field [0001] The invention relates to a wireless detection system for soil heavy metal content. Background technique [0002] Soil heavy metal pollution refers to the phenomenon that heavy metals are brought into the soil due to natural reasons or human activities, causing the content of heavy metals in the soil to be significantly higher than the background value, and causing existing or potential soil quality degradation, ecological and environmental deterioration. Soil heavy metals come from a wide range of sources, mainly including atmospheric dustfall, sewage irrigation, improper stacking of industrial solid waste, mining activities, pesticides and fertilizers, etc. All industries that use heavy metals and materials containing heavy metals as raw materials for production may discharge heavy metals during the production process. If they are not disposed of properly, they will cause environmental pollution. [0003] In the process of preventing, monitoring and ...

Claims

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Application Information

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IPC IPC(8): G01N27/24
CPCG01N27/228G01N27/24
Inventor 尹海宏许伟王志亮宋长青印川施天宇
Owner NANTONG UNIVERSITY