CN203148967U - Constant temperature difference hot film type wind speed measurement device - Google Patents
Constant temperature difference hot film type wind speed measurement device Download PDFInfo
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- CN203148967U CN203148967U CN 201320189824 CN201320189824U CN203148967U CN 203148967 U CN203148967 U CN 203148967U CN 201320189824 CN201320189824 CN 201320189824 CN 201320189824 U CN201320189824 U CN 201320189824U CN 203148967 U CN203148967 U CN 203148967U
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Abstract
Belonging to a wind speed measuring device, the invention particularly provides a constant temperature difference hot film type wind speed measurement device, which comprises a singlechip (1), a constant temperature difference control module (2) that is connected to the output end of the singlechip (1) and controls a hot film type wind speed sensor (3), which is connected to the input end of the singlechip (1) through a signal conditioning circuit (4). The wind speed measurement device provided by the utility model improves the defects of large volume, high cost, high power consumption, low reliability and the like existing in domestic wind speed measurement instruments.
Description
Technical field
A kind of constant difference hot diaphragm type wind speed measuring device belongs to a kind of wind speed measuring device.
Background technology
Wind speed is many industrial processes, Scientific Measurement and carries out the parameter that various accounting must be measured, and is the important technology index of energy measurement.Measuring wind speed is as the important component part in the rate of flow of fluid fields of measurement, for guaranteeing product quality, enhances productivity and energy savings has vital role.
At the Safety of Coal Mine Production design field, the down-hole wind speed has material impact to safety in production and operating personnel's health level of comfort.Wind speed is crossed when hanging down, and sweat is difficult for evaporation, and the unnecessary heat of human body is difficult for scattering and disappearing, and it is sultry uncomfortable that the people will feel, while gas also gathers easily; When wind speed is too high, the people is caught a cold, mine dust flies upward, to safety in production and workman healthy all unfavorable.So the whether accurate of mining measuring wind speed instrument is to ensure whether the down-hole has the basis of enough air quantity dilution gas, and it is related to the production safety in colliery and miner's life security.
Yet also there are many weak points such as the instrument volume is big, cost is high, power consumption is high, reliability is low in domestic existing measuring wind speed instrument, is not suitable for the measurement of working environment at coal mines wind speed.
Summary of the invention
In order to address the above problem, the utility model has designed a kind of constant difference hot diaphragm type wind speed measuring device, has improved many deficiencies such as homemade measuring wind speed instrument volume is big, cost is high, power consumption is high, reliability is low.
The purpose of this utility model is achieved in that
A kind of constant difference hot diaphragm type wind speed measuring device comprises single-chip microcomputer, is connected to the input end of single-chip microcomputer by signal conditioning circuit by being connected the constant difference control module control hot diaphragm type air velocity transducer of single-chip microcomputer output terminal, described hot diaphragm type air velocity transducer.
Above-mentioned a kind of constant difference hot diaphragm type wind speed measuring device also comprises the LED light that is connected the single-chip microcomputer output terminal.
Above-mentioned a kind of constant difference hot diaphragm type wind speed measuring device also comprises the infrared remote control calibrating installation that is connected with single-chip microcomputer.
Described single-chip microcomputer adopts MSP430F2012.
Above-mentioned a kind of constant difference hot diaphragm type wind speed measuring device also comprises the normalized current output terminal that is connected with the single-chip microcomputer output terminal.
The output current of described normalized current output terminal is 4 ~ 20mA.
Above-mentioned a kind of constant difference hot diaphragm type wind speed measuring device, described hot diaphragm type air velocity transducer is bridge structure, Pt100 is connected between the in-phase input end and output terminal of MCP6044, the Pt1000 75 Ω resistance of connecting are connected between the inverting input and output terminal of MCP6044, and 51 Ω resistance, the 510 Ω resistance of connecting are connected between the in-phase input end and inverting input of MCP6044.
Because the utility model constant difference hot diaphragm type wind speed measuring device, comprise single-chip microcomputer, be connected to the input end of single-chip microcomputer by signal conditioning circuit by being connected the constant difference control module control hot diaphragm type air velocity transducer of single-chip microcomputer output terminal, described hot diaphragm type air velocity transducer, this design has improved many deficiencies such as homemade measuring wind speed instrument volume is big, cost is high, power consumption is high, reliability is low.
Description of drawings
Fig. 1 is the utility model constant difference hot diaphragm type wind speed measuring device circuit connection diagram.
Fig. 2 is hot diaphragm type air velocity transducer bridge diagram connection layout.
Among the figure: 1 single-chip microcomputer, 2 constant difference control modules, 3 hot diaphragm type air velocity transducers, 4 signal conditioning circuits, 5LED pilot lamp, 6 infrared remote control calibrating installations, 7 normalized current output terminals.
Embodiment
Below in conjunction with accompanying drawing the utility model embodiment is described in further detail.
The constant difference hot diaphragm type wind speed measuring device circuit connection diagram of present embodiment as shown in Figure 1, the input end that this wind speed measuring device comprises that model is the single-chip microcomputer 1 of MSP430F2012, the 2 control hot diaphragm type air velocity transducers 3 of the constant difference control module by being connected single-chip microcomputer 1 output terminal, described hot diaphragm type air velocity transducer 3 are connected to single-chip microcomputer 1 by signal conditioning circuit 4.Also comprise the LED light 5 that is connected single-chip microcomputer 1 output terminal, and the infrared remote control calibrating installation 6 that is connected with single-chip microcomputer 1, this device operation and calibration all are very easy to.
Single-chip microcomputer 1 adopts MSP430F2012, can realize low-power consumption, for the surveying instrument miniaturization provides solution.
Above-mentioned constant difference hot diaphragm type wind speed measuring device also comprises the normalized current output terminal 7 that is connected with single-chip microcomputer 1 output terminal, and output current is 4 ~ 20mA, is convenient to this equipment is expanded.
Described hot diaphragm type air velocity transducer 3 is bridge structure, Pt100 is connected between the in-phase input end and output terminal of MCP6044, the Pt1000 75 Ω resistance of connecting are connected between the inverting input and output terminal of MCP6044,51 Ω resistance, the 510 Ω resistance of connecting are connected between the in-phase input end and inverting input of MCP6044, as shown in Figure 2.
The principle of work of hot diaphragm type air velocity transducer 3 is as follows:
After flowing through Pt100 and Pt1000, the electric current of MCP6044 output can make its intensification, the back bridge balance heats up, and when Pt100 is crossed in wind, the temperature of Pt100 is descended, cause the Pt100 change in resistance simultaneously, this moment, electric bridge was in nonequilibrium condition, and MCP6044 will provide a bigger electric current to come balanced bridge then, by the size of measuring this electric current and the corresponding relation that utilizes size of current and wind speed, just can measure wind speed.
Claims (7)
1. a constant difference hot diaphragm type wind speed measuring device is characterized in that: comprise single-chip microcomputer (1), constant difference control module (2) the control hot diaphragm type air velocity transducer (3) by being connected single-chip microcomputer (1) output terminal, described hot diaphragm type air velocity transducer (3) is connected to single-chip microcomputer (1) by signal conditioning circuit (4) input end.
2. a kind of constant difference hot diaphragm type wind speed measuring device according to claim 1 is characterized in that: also comprise the LED light (5) that is connected single-chip microcomputer (1) output terminal.
3. a kind of constant difference hot diaphragm type wind speed measuring device according to claim 1 is characterized in that: also comprise the infrared remote control calibrating installation (6) that is connected with single-chip microcomputer (1).
4. according to claim 2 or 3 described a kind of constant difference hot diaphragm type wind speed measuring devices, it is characterized in that: described single-chip microcomputer (1) adopts MSP430F2012.
5. a kind of constant difference hot diaphragm type wind speed measuring device according to claim 1 is characterized in that: also comprise the normalized current output terminal (7) that is connected with single-chip microcomputer (1) output terminal.
6. a kind of constant difference hot diaphragm type wind speed measuring device according to claim 5, it is characterized in that: the output current of described normalized current output terminal (7) is 4 ~ 20mA.
7. a kind of constant difference hot diaphragm type wind speed measuring device according to claim 1, it is characterized in that: described hot diaphragm type air velocity transducer (3) is bridge structure, Pt100 is connected between the in-phase input end and output terminal of MCP6044, the Pt1000 75 Ω resistance of connecting are connected between the inverting input and output terminal of MCP6044, and 51 Ω resistance, the 510 Ω resistance of connecting are connected between the in-phase input end and inverting input of MCP6044.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189824 CN203148967U (en) | 2013-04-16 | 2013-04-16 | Constant temperature difference hot film type wind speed measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320189824 CN203148967U (en) | 2013-04-16 | 2013-04-16 | Constant temperature difference hot film type wind speed measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148967U true CN203148967U (en) | 2013-08-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320189824 Expired - Fee Related CN203148967U (en) | 2013-04-16 | 2013-04-16 | Constant temperature difference hot film type wind speed measurement device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203148967U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907706A (en) * | 2017-11-10 | 2018-04-13 | 北京卫星环境工程研究所 | Suitable for the hotting mask wind speed and direction measuring system under low pressure |
-
2013
- 2013-04-16 CN CN 201320189824 patent/CN203148967U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107907706A (en) * | 2017-11-10 | 2018-04-13 | 北京卫星环境工程研究所 | Suitable for the hotting mask wind speed and direction measuring system under low pressure |
| CN107907706B (en) * | 2017-11-10 | 2019-11-08 | 北京卫星环境工程研究所 | Suitable for the hotting mask wind speed and direction measuring system under low pressure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20140416 |