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Probe used for measuring oxido reduction potential of wetland soil from different depth

A technology of depth and soil, which is applied in the field of probes for measuring the redox potential of soil at different depths in wetlands. It can solve the problems of limiting the progress of wetland research work, unable to meet actual needs, and unable to meet high-precision simultaneous measurement, so as to optimize monitoring time and cost. Low, the effect of ensuring consistency

Inactive Publication Date: 2018-06-08
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current combination of platinum electrode probe and portable voltmeter can only realize the determination of soil redox potential at a single depth
Since the time interval of each measurement is as high as 30 minutes or more, the traditional probe for measuring the redox potential of soil at a single depth greatly limits the progress of wetland research and cannot meet the actual needs of large-scale wetland soil redox potential measurement.
At the same time, it cannot meet the demand for high-precision simultaneous measurement of the redox potential of soil at different depths at the same site

Method used

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  • Probe used for measuring oxido reduction potential of wetland soil from different depth
  • Probe used for measuring oxido reduction potential of wetland soil from different depth

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specific Embodiment approach 1

[0016] Specific implementation mode one: combine figure 1 and 2 Describe this embodiment, a probe for measuring the redox potential of soil at different depths in wetlands in this embodiment, which includes a hollow tube 1, a platinum wire 2, a copper wire 3, a tube 4 and a rubber tube 5;

[0017] The hollow tube 1 is a hollow tube with upper and lower openings; the side wall of the hollow tube 1 is provided with at least two through holes from top to bottom;

[0018] The copper wire 3 and the platinum wire 2 are welded together to form a copper wire-platinum wire connection; the copper wire 3 is wrapped by epoxy resin, and the connection between the copper wire 3 and the platinum wire 2 is sealed with waterproof epoxy polyester ;

[0019] Place the copper wire-platinum wire connector in the hollow tube 1, one end of the copper wire-platinum wire connector passes through the through hole opened on the side wall of the hollow tube 1, and mark it on the side wall of the hollow...

specific Embodiment approach 2

[0022] Specific implementation mode two: combination figure 1 and 2 This embodiment is described. The difference between this embodiment and the specific embodiment is that the copper wire-platinum wire connector needs to be calibrated in a hydroquinone solution with a pH of 4 before being installed on the hollow plastic pipe. During the calibration process, prevent The copper wire 3 wrapped by epoxy resin is in contact with the hydroquinone solution.

[0023] Other compositions and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0024] Specific implementation mode three: combination figure 1 and 2 Describe this embodiment, the difference between this embodiment and specific embodiment 1 is that the through holes opened on the side wall of the hollow tube 1, the distance between every two adjacent through holes is 1 cm, and the diameter of the through holes is 0.16 cm.

[0025] Other compositions and connection methods are the same as those in Embodiment 1.

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Abstract

The invention discloses a probe used for measuring oxido reduction potential of wetland soil from different depth. The probe can be used for simultaneous detection of oxido reduction potential of wetland soil from different depth, and solving difficult problems in detection of oxido reduction potential of wetland soil from different depth. According to the probe, a platinum wire and a copper sireare welded together, the platinum wire part is arranged outside the side wall of a hollow tube; an upper opening, a lower opening, and a platinum wire outlet are sealed, the hollow tube is sleeved with a rubber tube; the copper wire is designed to penetrate through the hollow tube, and stretch out through the side wall of a centrifuge tube on the other end of the rubber tube, and the penetrating hole of the copper wire is sealed so as to obtain the probe.

Description

technical field [0001] The invention relates to a probe for measuring the redox potential of soil at different depths in wetlands. Background technique [0002] The anaerobic environment caused by flooding is one of the most notable characteristics of wetland soil, and the formation of wetland soil is directly related to redox conditions. Oxidation-reduction potential is an important index to quantitatively characterize the electron availability, soil aeration and reduction degree in wetland soil, and to diagnose the metabolic status of wetland soil caused by hydrological changes. Wetland research work usually requires simultaneous determination of redox potential at different soil depths. However, the current combination of platinum electrode probe and portable voltmeter can only realize the determination of soil redox potential at a single depth. Since the time interval of each measurement is as high as 30 minutes or more, the traditional probe for measuring the redox po...

Claims

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Application Information

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IPC IPC(8): G01N27/30
CPCG01N27/30
Inventor 王国栋王铭方玉龙姜明吕宪国
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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