Moisture multi-parameter sensor
A multi-parameter, sensor technology, applied in the direction of instruments, scientific instruments, analytical materials, etc., can solve the problems of low water resistance, easy loosening when inserted into the soil, short length of three needles, etc., to prolong life, improve water resistance, and improve work efficiency effect
Inactive Publication Date: 2021-01-26
NANJING QIJUE ELECTRONICS TECH CO LTD
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Problems solved by technology
[0003] However, there are problems in the existing technology: (1) The needles are thinner, and they are easy to loosen when inserted into the soil. (2) The three needles are short in length, so it is inconvenient to directly insert into the soil for measurement, and needs to be buried in the soil
(3) Water resistance is not high
In order to solve the problem of reliable contact with the soil, improve work efficiency and product performance, the present invention proposes a moisture multi-parameter sensor
Method used
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Embodiment 1
[0018] This embodiment provides a moisture multi-parameter sensor, including a circuit board housing 1, a circuit board 2 is fixed inside the circuit board housing 1, a first plastic spacer 3 is built in the top of the circuit board housing 1, and the first plastic spacer 3 extends to Outside the circuit board shell 1, the inner wall of the circuit board shell 1 is matched with the outer wall of the first plastic spacer 3 so that the circuit board shell 1 and the first plastic spacer 3 are sleeved and clamped, and the top of the first plastic spacer 3 is set There is a waterproof connector 4; the bottom end of the circuit board shell 1 is connected with a plastic shell 5, the plastic shell 5 includes a built-in end 51 and an external end 52, the built-in end 51 is set inside the circuit board shell 1, and the built-in end 51 is arranged in order from top to bottom Covered with a first waterproof rubber ring 6, a second waterproof rubber ring 7, a third waterproof rubber ring 8,...
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The invention discloses a moisture multi-parameter sensor which comprises a circuit board shell, a circuit board is fixed in the circuit board shell, a first plastic isolation piece is arranged in thetop end of the circuit board shell, and the first plastic isolation piece extends out of the circuit board shell. The inner wall of the circuit board shell is matched with the outer wall of the firstplastic isolation piece, so that the circuit board shell and the first plastic isolation piece are sleeved and clamped, and a waterproof joint is arranged at the top end of the first plastic isolation piece. The bottom end of the circuit board shell is connected with a plastic shell, the plastic shell comprises a built-in end and an external end, the built-in end is arranged in the circuit boardshell, and the built-in end is sequentially sleeved with a first waterproof rubber ring, a second waterproof rubber ring, a third waterproof rubber ring, a first copper ring, a first plastic ring, a second copper ring and a second plastic ring from top to bottom. The external end is connected with the first electrode through threads, a fourth waterproof rubber ring is further arranged between theexternal end and the first electrode, and the first electrode is sequentially connected with the second plastic isolation piece and the second electrode in a sleeved mode.
Description
technical field [0001] The invention relates to the technical field of soil moisture detection, in particular to a moisture multi-parameter sensor. Background technique [0002] The moisture sensor is mainly used in the detection of soil moisture. The multi-parameters mainly refer to: soil moisture (ie soil temperature and humidity), soil temperature, soil electrical conductivity, soil salinity, soil nutrients, etc. It has broad application prospects in intelligent agriculture and forestry. Most moisture sensors need to use a three-pin structure. The three needles are made of metal stainless steel. When measuring, all three needles should be inserted into the soil for measurement. [0003] However, there are problems in the existing technology: (1) The needles are thinner, and they are easy to loosen when inserted into the soil. (2) The length of the three needles is short, it is inconvenient to directly insert into the soil for measurement, and needs to be buried in the soi...
Claims
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IPC IPC(8): G01N33/24
CPCG01N33/246
Inventor 苏小雨杨洋
Owner NANJING QIJUE ELECTRONICS TECH CO LTD