CN104360100A - High-precision anemograph - Google Patents
High-precision anemograph Download PDFInfo
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- CN104360100A CN104360100A CN201410598597.4A CN201410598597A CN104360100A CN 104360100 A CN104360100 A CN 104360100A CN 201410598597 A CN201410598597 A CN 201410598597A CN 104360100 A CN104360100 A CN 104360100A
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- circuit
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Abstract
The invention discloses a high-precision anemograph which comprises a hot-film probe, a pre-amplification circuit, an MCU, a constant-voltage output circuit and a constant-current output circuit. The hot film probe is connected with the pre-amplification circuit through a wire. The pre-amplification circuit is connected with the MCU through a wire. The constant-voltage output circuit is connected with the MCU through a wire. The constant-current output circuit is connected with the constant-voltage output circuit. The hot-film probe converts a wind speed signal into a current signal. The pre-amplification circuit converts the current signal transmitted by the hot-film probe into a voltage signal and amplifies the voltage signal. The MCU collects the voltage transmitted by the pre-amplification circuit, and calculates and compensates to obtain a wind speed value. The constant-voltage output circuit converts the linear wind speed signal calibrated and compensated by the MCU into voltage output. The constant-current output circuit linearly converts the voltage signal into constant-current signal output. The anemograph is free of a dust generating source, high in measuring precision and good in stability.
Description
Technical field
The present invention relates to technical field of measuring equipment, relate in particular to a kind of high precision anemoscope exported with constant current constant voltage.
Background technology
Implement along with toilet produces new GMP, factory building toilet is more and more subject to the attention of the producer and regulator.For the examination of toilet, first the detection of wind speed air quantity must be carried out, and the every effect of purification air-conditioning must be obtain under the wind speed air quantity condition of design code.For toilet, traditional vane or vane type anemoscope be a dust production resource inherently, and accuracy of detection, sensitivity, real-time are not fine, so the optimal selection of Bu Shi toilet measuring wind.
Summary of the invention
For the technical matters of above-mentioned existence, the object of the invention is: propose a kind of high precision anemoscope, itself is not with dust production resource, and measuring accuracy is high, good stability; Data standard can be provided to output signal for other equipment monitors.
Technical solution of the present invention is achieved in that a kind of high precision anemoscope, comprises Heat―Film Probe, pre-amplification circuit, MCU, constant voltage outputting circuit, constant current output circuit; Described Heat―Film Probe is connected with pre-amplification circuit by wire; Described pre-amplification circuit is connected with MCU by wire; Described constant voltage outputting circuit is connected with MCU by wire; Described constant current output circuit is connected with constant voltage outputting circuit by wire; Described Heat―Film Probe converts wind velocity signal to current signal; What Heat―Film Probe was sent here by described pre-amplification circuit converts voltage signal to and amplifies; Described MCU gathers the voltage signal that prime amplifier is sent here, carries out calculating, compensates and draw air speed value; The linear wind velocity signal that MCU compensation for calibrating errors is crossed by described constant voltage outputting circuit converts voltage to and exports; Voltage signal is converted linearly into constant current signal and exports by described current circuit.
Preferably, described hotting mask resistance is thermostatic type hot line wind speed measurement, output current signal.
Preferably, described instrument is with the constant voltage outputting circuit linear with wind speed, and voltage output range is 0-10V.
Preferably, described instrument is with the constant current output circuit linear with wind speed, and range of current output is 0-20mA.
Due to the utilization of technique scheme, the present invention compared with prior art has following advantages: the present invention adopts heat pattern to pop one's head in, and measuring wind scope is wide, precision is high, good stability; Instrument, with constant pressure and flow circuit, can export the voltage of 0-10V and the electric current of 4-20mA, is conducive to secondary development and the data acquisition of instrument; Apparatus structure is simple, easy to use, applied range.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solution of the present invention is described further:
Accompanying drawing 1 is the structural representation of high precision anemoscope of the present invention;
Wherein: 1, pre-amplification circuit; 2, Heat―Film Probe; 3, MCU; 4, constant voltage outputting circuit; 5, constant current output circuit.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described.
Be high precision anemoscope of the present invention as shown in Figure 1, comprise Heat―Film Probe 2, pre-amplification circuit 1, MCU 3, constant voltage outputting circuit 4, constant current output circuit 5; Described Heat―Film Probe 2 is connected with pre-amplification circuit 1 by wire; Described pre-amplification circuit 1 is connected with MCU 3 by wire; Described constant voltage outputting circuit 4 is connected with MCU 3 by wire; Described constant current output circuit 5 is connected with constant voltage outputting circuit 4 by wire.
Described Heat―Film Probe 2 converts wind velocity signal to current signal; What Heat―Film Probe 2 was sent here by described pre-amplification circuit 1 converts voltage signal to and amplifies; Described MCU 3 gathers the voltage signal that prime amplifier 1 is sent here, carries out calculating, compensates and draw air speed value; The linear wind velocity signal that MCU 3 compensation for calibrating errors is crossed is converted to voltage and exports by described constant voltage outputting circuit 4; Voltage signal is converted linearly into constant current signal and exports by described current circuit 5.
Above-described embodiment is only for illustrating technical conceive of the present invention and feature; its object is to person skilled in the art can be understood content of the present invention and be implemented; can not limit the scope of the invention with this; all equivalences done according to Spirit Essence of the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (4)
1. a high precision anemoscope, is characterized in that: comprise Heat―Film Probe, pre-amplification circuit, MCU, constant voltage outputting circuit, constant current output circuit; Described Heat―Film Probe is connected with pre-amplification circuit by wire; Described pre-amplification circuit is connected with MCU by wire; Described constant voltage outputting circuit is connected with MCU by wire; Described constant current output circuit is connected with constant voltage outputting circuit by wire; Described Heat―Film Probe converts wind velocity signal to current signal; What Heat―Film Probe was sent here by described pre-amplification circuit converts voltage signal to and amplifies; Described MCU gathers the voltage signal that prime amplifier is sent here, carries out calculating, compensates and draw air speed value; The linear wind velocity signal that MCU compensation for calibrating errors is crossed by described constant voltage outputting circuit converts voltage to and exports; Voltage signal is converted linearly into constant current signal and exports by described current circuit.
2. high precision anemoscope as claimed in claim 1, is characterized in that: described hotting mask resistance is thermostatic type hot line wind speed measurement, output current signal.
3. high precision anemoscope as claimed in claim 1, is characterized in that: described instrument is with the constant voltage outputting circuit linear with wind speed, and voltage output range is 0-10V.
4. high precision anemoscope as claimed in claim 1, is characterized in that: described instrument is with the constant current output circuit linear with wind speed, and range of current output is 0-20mA.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598597.4A CN104360100A (en) | 2014-10-31 | 2014-10-31 | High-precision anemograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410598597.4A CN104360100A (en) | 2014-10-31 | 2014-10-31 | High-precision anemograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104360100A true CN104360100A (en) | 2015-02-18 |
Family
ID=52527382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410598597.4A Pending CN104360100A (en) | 2014-10-31 | 2014-10-31 | High-precision anemograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104360100A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833818A (en) * | 2015-04-30 | 2015-08-12 | 无锡市崇安区科技创业服务中心 | Wind speed monitoring system having optimized power supplying |
| CN105242073A (en) * | 2015-10-26 | 2016-01-13 | 南京航空航天大学 | Constant temperature hot wire wind-velocity indicator detection system |
| CN113466487A (en) * | 2021-08-20 | 2021-10-01 | 吉林大学 | Method for measuring wind speed by using constant-current type thermal anemometer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096799Y (en) * | 2007-11-05 | 2008-08-06 | 中国建筑科学研究院 | Automatic recording instrument for wind speed |
| CN201397163Y (en) * | 2009-04-26 | 2010-02-03 | 浙江恒光汽车部件有限公司 | Airflow detection circuit of digital airflow meter |
| CN203561644U (en) * | 2013-11-28 | 2014-04-23 | 成都淞幸科技有限责任公司 | Thermal diffusion principle-based flow velocity detection system |
-
2014
- 2014-10-31 CN CN201410598597.4A patent/CN104360100A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201096799Y (en) * | 2007-11-05 | 2008-08-06 | 中国建筑科学研究院 | Automatic recording instrument for wind speed |
| CN201397163Y (en) * | 2009-04-26 | 2010-02-03 | 浙江恒光汽车部件有限公司 | Airflow detection circuit of digital airflow meter |
| CN203561644U (en) * | 2013-11-28 | 2014-04-23 | 成都淞幸科技有限责任公司 | Thermal diffusion principle-based flow velocity detection system |
Non-Patent Citations (1)
| Title |
|---|
| 巫荣闻: "热膜式风速变送器系统设计", 《中国优秀硕士学位论文全文数据库信息科技辑》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104833818A (en) * | 2015-04-30 | 2015-08-12 | 无锡市崇安区科技创业服务中心 | Wind speed monitoring system having optimized power supplying |
| CN105242073A (en) * | 2015-10-26 | 2016-01-13 | 南京航空航天大学 | Constant temperature hot wire wind-velocity indicator detection system |
| CN105242073B (en) * | 2015-10-26 | 2018-08-28 | 南京航空航天大学 | Thermostatic type hot-wire anemometer detecting system |
| CN113466487A (en) * | 2021-08-20 | 2021-10-01 | 吉林大学 | Method for measuring wind speed by using constant-current type thermal anemometer |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150218 |
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| RJ01 | Rejection of invention patent application after publication |