CN207007764U - A kind of device for measuring water pH value - Google Patents
A kind of device for measuring water pH value Download PDFInfo
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- CN207007764U CN207007764U CN201720648351.2U CN201720648351U CN207007764U CN 207007764 U CN207007764 U CN 207007764U CN 201720648351 U CN201720648351 U CN 201720648351U CN 207007764 U CN207007764 U CN 207007764U
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- impedance transducer
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Abstract
A kind of device for measuring water pH value, has measuring instrumentss and sensor, sensor includes impedance transducer, measuring electrode, glass ball bulb, reference liquid, reference electrode, temperature electrode, the measuring instrumentss are connected by common cable with impedance transducer one end, and measuring electrode is connected with the impedance transducer other end, and impedance transducer is externally provided with electrode cap, sealing is provided with electrode cap, the impedance transducer other end is also associated with reference electrode, glass ball bulb, temperature electrode.The transmission range of high resistant signal is shortened, ensure that signal does not lose and improves interference free performance.
Description
Technical field
The present invention relates to water quality measurement field, specifically a kind of water pH value measurement apparatus.
Background technology
Often there is measured value inaccuracy in the pH value measurement of existing water quality, multilist measures same water sample simultaneously, number
It is worth inconsistent phenomenon, also, the problem of measuring instrument also has potential drifting in use for some time, is brought to user
Inconvenience, can seriously cause the failure of controlled industrial equipment, and sewage discharge is unqualified, the problem of polluting environment.
It has been investigated that the appearance of above mentioned problem, electric potential signal, insulation mainly due to the glass sensitive membrane of pH electrodes
Caused by the parameter such as characteristic and the noise signal of electrode signal transmission cable.Electrode is easily by the temperature in the external world, humidity, tested water
The influence of electromagnetism harmonic wave interference in sample conductivity value, dielectric insulation degree, signal-transmitting cable self-noise and air, and cause pH
The unordered fluctuation of electrode signal, and then cause measured value change, inaccuracy.
The content of the invention
To solve the above problems, the present invention provides the measurement water pH value device that a kind of measured value is accurate, stable.
Scheme of the present invention is：Measuring instrumentss in device are connected by common cable and impedance transducer one end
Connect, the impedance transducer other end is directly connected with measuring electrode, shortens the transmission range of high resistant signal, ensure that signal does not damage
Lose and improve interference free performance.Impedance transducer is externally provided with electrode cap, and electrode cap has the function that to protect impedance transducer.Electricity
Sealing is provided with polar cap, the sealing is high insulation and shielding material.The impedance transducer other end is also associated with reference electrode, electricity
Pole ball bubble, temperature electrode.
Using the measurement apparatus of this structure, when measuring water pH value, signal antijamming capability is improved, is measured
Water quality PH numerical value it is accurate, and stably.The numerical value that this invention is measured not only is stablized, is accurate, and the transmission of signal
Distance is still stable after extending hundreds of meters, expands the use range at scene.
Brief description of the drawings
Fig. 1 is original measurement apparatus structure chart；
Fig. 2 is the structure chart of this invention；
In figure, 1- ball electrodes bubble, 2- measuring electrodes, 3- reference electrodes, 4- low noise cables, 5- impedance transducers, 6- measurements
Instrument, 7- electrode caps, 8- sealings, 9- temperature electrodes, 10- common cables.
Specific embodiment
A kind of device of measurement water pH value as shown in Figure 2, measuring instrumentss 6 pass through common cable 10 and impedance transducer
5 one end connect, and impedance transducer 5 is externally provided with electrode cap 7, and electrode cap plays protection impedance transducer, and shielding uses copper aluminium
Alloy Foil.Sealing 8 is provided with electrode cap 7, height insulation sealing uses epoxy resin and polytetrafluoroethylene (PTFE).Impedance transducer 5 is another
End is directly connected with measuring electrode 2, and the other end of impedance transducer 5 is also associated with temperature electrode 9, reference electrode 3 and ball electrode
Bubble 1.
Measurement apparatus is put into water sample to be measured, switched on power, water sample to be measured is measured, the data after measurement pass through
Instrument display is shown.
Present invention reduces the transmission range of high resistant signal, improves signal antijamming capability, the water quality PH measured
It is value stabilization, accurate.
Claims (2)
1. a kind of device for measuring water pH value, there is measuring instrumentss and sensor, sensor includes resistance converter, measurement electricity
Pole, glass ball bulb, reference liquid, reference electrode, temperature electrode, it is characterised in that：Measuring instrumentss are turned by common cable and impedance
Parallel operation one end is connected, and measuring electrode is connected with the impedance transducer other end, and impedance transducer is externally provided with electrode cap, is set in electrode cap
There is sealing, the impedance transducer other end is also associated with reference electrode, glass ball bulb, temperature electrode.
A kind of 2. device for measuring water pH value as claimed in claim 1, it is characterised in that：The sealing is high insulation and screen
Cover material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648351.2U CN207007764U (en) | 2017-06-06 | 2017-06-06 | A kind of device for measuring water pH value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720648351.2U CN207007764U (en) | 2017-06-06 | 2017-06-06 | A kind of device for measuring water pH value |
Publications (1)
| Publication Number | Publication Date |
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| CN207007764U true CN207007764U (en) | 2018-02-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720648351.2U Active CN207007764U (en) | 2017-06-06 | 2017-06-06 | A kind of device for measuring water pH value |
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| CN (1) | CN207007764U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979963A (en) * | 2017-06-06 | 2017-07-25 | 大连华城电子有限公司 | A kind of device for measuring water quality pH value |
-
2017
- 2017-06-06 CN CN201720648351.2U patent/CN207007764U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979963A (en) * | 2017-06-06 | 2017-07-25 | 大连华城电子有限公司 | A kind of device for measuring water quality pH value |
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