CN211453564U - Negative oxygen ion monitor capable of automatically selecting proper range - Google Patents
Negative oxygen ion monitor capable of automatically selecting proper range Download PDFInfo
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- CN211453564U CN211453564U CN202020078560.XU CN202020078560U CN211453564U CN 211453564 U CN211453564 U CN 211453564U CN 202020078560 U CN202020078560 U CN 202020078560U CN 211453564 U CN211453564 U CN 211453564U
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Abstract
The utility model provides an automatic select negative oxygen ion monitor of suitable range, belongs to negative oxygen ion monitoring technology field. The negative oxygen ion monitor comprises a negative oxygen ion sensor, a signal amplification circuit, an analog-to-digital conversion unit, a data processing unit and a power supply for supplying power to each component, wherein the number of the signal amplification circuits is N, the N signal amplification circuits correspond to N measuring ranges of the concentration of the negative oxygen ions respectively, and N is an integer greater than 1. The negative oxygen ion concentration signal is simultaneously transmitted to each signal amplification circuit for amplification, and then simultaneously transmitted to the analog-digital conversion unit, the analog-digital conversion unit simultaneously converts the negative oxygen ion concentration signal into N paths of digital signals and transmits the N paths of digital signals to the data processing unit, the data processing unit automatically distinguishes the optimal range to be adopted by the current measurement after processing the N paths of digital signals, and the value of the optimal range is taken to output a negative oxygen ion monitoring result. The invention can automatically select a proper range according to the real-time negative oxygen ion concentration in the air, thereby improving the measurement precision, in particular the accuracy of long-time automatic monitoring data.
Description
Technical Field
The utility model belongs to the technical field of negative oxygen ion monitoring, a automatic select negative oxygen ion monitor of suitable range is related to.
Background
At present, instruments for measuring negative oxygen ions in general atmosphere exist in the market, but the amplification level of most of the existing negative oxygen ion monitoring devices is fixed and cannot be changed. The amplification level usually determines the measurement accuracy, and the amplification level usually determines the measurement accuracy, especially in low concentration measurement, the data accuracy is affected by the interference or temperature drift of the amplifier, so that the selection of a proper amplification circuit is helpful to improve the monitoring accuracy. The existing small quantity of negative oxygen ion monitoring devices capable of adjusting the amplifying circuit need manual adjustment, cannot automatically select a proper range according to the real-time negative oxygen ion concentration in the atmosphere, and is not beneficial to the accuracy of long-time automatic data monitoring.
The negative oxygen ion monitor capable of automatically selecting a proper range according to the real-time negative oxygen ion concentration in the air is urgently needed, so that the measurement precision is improved, and particularly, the accuracy of long-time automatic data monitoring is improved.
Disclosure of Invention
The utility model aims at the above-mentioned defect that prior art exists, provide an automatic negative oxygen ion monitor of selecting suitable range, realize according to the suitable range of real-time negative oxygen ion concentration automatic selection in the air, and improve measurement accuracy, especially improve the accuracy of long-time automatic monitoring data. The purpose of the utility model is realized through the following technical scheme.
The negative oxygen ion monitor capable of automatically selecting the proper measuring range comprises a negative oxygen ion sensor, a signal amplification circuit, an analog-to-digital conversion unit, a data processing unit and a power supply for supplying power to each component, and is characterized in that the number of the signal amplification circuits is N, the N is respectively corresponding to N measuring ranges of the concentration of the negative oxygen ions, and N is an integer greater than 1; the negative oxygen ion concentration signal acquired by the negative oxygen ion sensor is simultaneously transmitted to each signal amplification circuit for amplification, and then simultaneously transmitted to the analog-to-digital conversion unit, the analog-to-digital conversion unit simultaneously converts the N paths of amplified analog signals into N paths of digital signals and transmits the N paths of digital signals to the data processing unit, the data processing unit automatically distinguishes the optimal range to be adopted by the current measurement after processing the N paths of digital signals, and the value of the optimal range is taken to output a negative oxygen ion monitoring result.
Further, N is equal to 3.
Further, the device also comprises a display unit, and the display unit displays the monitoring result of the negative oxygen ions in real time.
Further, the system also comprises a data transmission unit, and the data transmission unit transmits the data to the remote terminal.
The utility model discloses a measurement range simultaneous measurement of different amplification levels can make current environment numerical value and the amplifier circuit phase-match that corresponds, reduces because the signal drift that amplifier device itself or external interference caused has improved atmosphere negative oxygen ion measuring accuracy nature, especially can improve long-time automatic monitoring data's accuracy.
Drawings
Fig. 1 is a schematic structural diagram of the negative oxygen ion monitor provided by the present invention.
Detailed Description
The present invention will be further explained below.
The utility model provides an automatic select suitable range's negative oxygen ion monitor, includes negative oxygen ion sensor, signal amplification circuit, analog-to-digital conversion unit, data processing unit, display element, data transmission unit and the power for each part power supply, signal amplification circuit has 3, corresponds 3 ranges of negative oxygen ion concentration respectively. The negative oxygen ion concentration signal obtained by the negative oxygen ion sensor is simultaneously transmitted to each signal amplification circuit, the negative oxygen ion concentration signal is amplified by the signal amplification circuits and then simultaneously transmitted to the analog-digital conversion unit, the analog-digital conversion unit simultaneously converts the 3 paths of amplified analog signals into 3 paths of digital signals and transmits the digital signals to the data processing and transmitting unit, the data processing unit processes the 3 paths of digital signals and then automatically distinguishes the optimal measuring range adopted by the current measurement, and the value of the optimal measuring range is taken to output a negative oxygen ion monitoring result. The display unit displays the negative oxygen ion monitoring result in real time, and the data transmission unit transmits data to the remote terminal.
The optimal measuring ranges corresponding to the 3 measuring ranges are respectively 0-8000/cm38000-3And more than 20000/cm3. After the data processing unit processes the 3 paths of digital signals, the measured values respectively given by the 3 paths of digital signals are automatically compared with the measuring range, and the measured value given by the optimal measuring range is selected as the measuring result。
Claims (4)
1. The negative oxygen ion monitor capable of automatically selecting the proper measuring range comprises a negative oxygen ion sensor, a signal amplification circuit, an analog-to-digital conversion unit, a data processing unit and a power supply for supplying power to each component, and is characterized in that the number of the signal amplification circuits is N, the N is respectively corresponding to N measuring ranges of the concentration of the negative oxygen ions, and N is an integer greater than 1; the negative oxygen ion concentration signal acquired by the negative oxygen ion sensor is simultaneously transmitted to each signal amplification circuit for amplification, and then simultaneously transmitted to the analog-to-digital conversion unit, the analog-to-digital conversion unit simultaneously converts the N paths of amplified analog signals into N paths of digital signals and transmits the N paths of digital signals to the data processing unit, the data processing unit automatically distinguishes the optimal range to be adopted by the current measurement after processing the N paths of digital signals, and the value of the optimal range is taken to output a negative oxygen ion monitoring result.
2. The negative oxygen ion monitor of claim 1, wherein N is equal to 3.
3. The negative oxygen ion monitor according to claim 1, further comprising a display unit, wherein the display unit displays the monitoring result of the negative oxygen ion in real time.
4. The negative oxygen ion monitor of claim 1, further comprising a data transmission unit, the data transmission unit transmitting data to a remote terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020078560.XU CN211453564U (en) | 2020-01-15 | 2020-01-15 | Negative oxygen ion monitor capable of automatically selecting proper range |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020078560.XU CN211453564U (en) | 2020-01-15 | 2020-01-15 | Negative oxygen ion monitor capable of automatically selecting proper range |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211453564U true CN211453564U (en) | 2020-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202020078560.XU Active CN211453564U (en) | 2020-01-15 | 2020-01-15 | Negative oxygen ion monitor capable of automatically selecting proper range |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211453564U (en) |
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2020
- 2020-01-15 CN CN202020078560.XU patent/CN211453564U/en active Active
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