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A water quality detector

A water quality detection and controller technology, applied in the direction of instruments, test water, material inspection products, etc., can solve the problem that the pH value and TDS value of the solution cannot be detected at the same time, so as to improve the utilization rate and simplify the operation steps

Active Publication Date: 2018-07-03
深圳以正科技有限公司
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Problems solved by technology

[0008] The technical problem to be solved by the present invention is to provide a water quality detector, which aims to solve the problem that the pH value and TDS value in the solution cannot be detected at the same time

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Embodiment Construction

[0044] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0045] Such as figure 1 As shown, a water quality detector includes a controller 101, a first control loop 102, a second control loop 104, a third control loop 106, a first isolation loop 103, a second isolation loop 105, a TDS probe 107 and a PH probe 108. The detailed description of each circuit and each device is as follows:

[0046]The controller 101 outputs a level signal to the first control loop 102, the second control loop 104, the third control loop 106, the first isolation loop 103 and the second isolation loop 105 according to the preset time, and the level signal is a high level signa...

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Abstract

A water quality testing meter, comprising: a controller (101, 201), a first control circuit (102), a second control circuit (104), a third control circuit (106), a first isolation circuit (103), a second isolation circuit (105), a TDS probe (107), and a PH probe (108). The controller (101, 102) outputs level signals to the first control circuit (102), the second control circuit (104), the third control circuit (106), the first isolation circuit (103), and the second isolation circuit (105) according to a preset time, the level signals being high level signals or low level signals. The controller (101, 201) is further used for reading data from the TDS probe (107) and the PH probe (108). The first, second, and third control circuits (102, 104, 106) and the first and second isolation circuits (103, 105) are used for controlling, according to the level signals, on-off of circuits where the TDS probe (107) and the PH probe (108) are located, so that the TDS probe (107) and the PH probe (108) can work in different time periods. By means of the water quality testing meter, both the PH value and the TDS value can be tested using one product. Thus, the utilization of the product is improved, and costs are reduced. Moreover, the test accuracy and test efficiency are improved.

Description

technical field [0001] The invention relates to the technical field of solution detection, in particular to a water quality detector. Background technique [0002] PH: Hydrogen ion concentration refers to the ratio of the total number of hydrogen ions in a solution to the amount of total substances. Indicates the numerical value of the acidity and alkalinity of the solution, pH=-lg(H+), which is the negative value of the common logarithm of the contained hydrogen ion concentration. The PH meter uses a composite PH electrode. The principle of the PH composite probe is: use a hydrogen ion glass electrode and a reference electrode to form a primary battery, and measure the potential between the electrodes during the ion exchange process between the glass membrane and the hydrogen ions in the measured solution. Difference, to detect the concentration of hydrogen ions in the solution, so as to measure the pH value of the liquid to be tested. [0003] TDS: (Total dissolved solid...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/18G01N35/00
CPCG01N27/26
Inventor 何春龙陈文亮黄磊李维诚刘超文李强
Owner 深圳以正科技有限公司