CN203772892U - Face velocity probe - Google Patents
Face velocity probe Download PDFInfo
- Publication number
- CN203772892U CN203772892U CN201420157436.7U CN201420157436U CN203772892U CN 203772892 U CN203772892 U CN 203772892U CN 201420157436 U CN201420157436 U CN 201420157436U CN 203772892 U CN203772892 U CN 203772892U
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- module
- wind speed
- temperature
- face velocity
- face wind
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Abstract
A face velocity probe comprises an air measuring module and a display module. The air measuring module comprises a face velocity module and a temperature compensation module. The face velocity module is round in shape and is provided with a round hole in the middle. A temperature control component is arranged in the round hole. The face velocity module is connected with the temperature compensation module. The temperature control component in the round hole is used for guaranteeing that the face velocity module is in a constant-temperature state. During air measurement, an air flow takes away the heat of the face velocity module and the temperature of the face velocity module decreases. Then the temperature control component detects the decreasing temperature of the face velocity module and sends a compensation signal to the temperature compensation module. The temperature compensation module is a compensation circuit which generates a corresponding compensation current according to the decreasing temperature, and the compensation current is fed back to the face velocity module for making the face velocity module maintain constant temperature. At the same time, the display module measures the magnitude of the compensated current and a value of air speed can be displayed on an electronic screen after corresponding coefficient conversion, so that the accuracy is higher and the error is smaller.
Description
Technical field
The utility model relates to gasmetry field, relates in particular to a kind of face wind speed probe.
Background technology
Common face wind speed probe in the market, mostly adopt a feeler lever to be used as surveying the element of wind speed, feeler lever can be followed wind and be swung in use, the amplitude size that feeler lever swings can embody the size of wind speed, because the swing of feeler lever is difficult to see clearly, after simple mechanical connection, can adopt mechanical dial plate directly to indicate wind speed, but the shortcoming of mechanical dial plate is accurate not, the reading that detects by an unaided eye easily produces very large error, is also difficult to the trickle wind speed of reaction and changes.
Utility model content
The utility model aims to provide a kind of face wind speed probe.
For realizing above-mentioned utility model object, the utility model by the following technical solutions, a kind of face wind speed probe, comprise gasmetry module and display module, described gasmetry module comprises face wind speed module and temperature compensation module, described face wind speed module is circular, middle part is provided with circular hole, in circular hole, be provided with temp-controlling element, face wind speed module connects temperature compensation module, temp-controlling element in circular hole is used for guaranteeing that face wind speed module is in temperature constant state, in the time carrying out gasmetry, air-flow can be taken away the heat of face wind speed module, the temperature of face wind speed module is declined, now temp-controlling element detects after the decline temperature of face wind speed module, send compensating signal to temperature compensation module, temperature compensation module is a compensating circuit, compensating circuit produces corresponding offset current according to the temperature declining, compensation current feedback to face wind speed module makes face wind speed module keep constant temperature, display module is measured the size of current of compensation simultaneously, after corresponding coefficient transforms, the numerical value of wind speed is presented in electrical screen.
As preferably, described electrical screen adopts LED screen.
In order to solve the coarse problem of reading of conventional face wind speed probe, the utility model adopts the test the speed mode different with face wind speed probe in the past, by script simply machinery test the speed and transfer electronic speed-determination to, precision is higher, error is less.
Brief description of the drawings
Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination is understood becoming the description of embodiment obviously and easily, wherein:
Fig. 1 is structural representation of the present utility model.
In figure: 1, face wind speed module; 2, temperature compensation module; 3, display module.
Embodiment
Describe embodiment of the present utility model below in detail, the example of described embodiment is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Be exemplary below by the embodiment being described with reference to the drawings, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.
In description of the present utility model, unless otherwise prescribed and limit, it should be noted that, term " installation ", " being connected ", " connection " should be interpreted broadly, for example, can be mechanical connection or electrical connection, can be also the connection of two element internals, can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can understand as the case may be the concrete meaning of above-mentioned term.
Shown in Figure 1, a kind of face wind speed probe, comprise gasmetry module and display module 3, described gasmetry module comprises face wind speed module 1 and temperature compensation module 2, described face wind speed module 1 is circular, middle part is provided with circular hole, in circular hole, be provided with temp-controlling element, face wind speed module 1 connects temperature compensation module 2, temp-controlling element in circular hole is used for guaranteeing that face wind speed module 1 is in temperature constant state, in the time carrying out gasmetry, air-flow can be taken away the heat of face wind speed module 1, the temperature of face wind speed module 1 is declined, now temp-controlling element detects after the decline temperature of face wind speed module 1, send compensating signal to temperature compensation module 2, temperature compensation module 2 is compensating circuits, compensating circuit produces corresponding offset current according to the temperature declining, compensation current feedback to face wind speed module 1 makes face wind speed module 1 keep constant temperature, display module 3 is measured the size of current of compensation simultaneously, after corresponding coefficient transforms, the numerical value of wind speed is presented in electrical screen, described electrical screen adopts LED screen.
In order to solve the coarse problem of reading of conventional face wind speed probe, the utility model adopts the test the speed mode different from face wind speed probe in the past, simple script machinery is tested the speed and transfers electronic speed-determination to, be pulled away the compensation of heat by opposite wind speed module, thereby determine the size of wind speed, and the numerical value of wind speed is directly presented on LED screen, precision is higher, and error is less.
In the description of this instructions, the description of reference term " embodiment ", " example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And specific features, structure, material or the feature of description can be with suitable mode combination in any one or more embodiment or example.
Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, amendment, replacement and modification to these embodiment, scope of the present utility model is limited by claim and equivalent thereof.
Claims (2)
1. a face wind speed probe, comprise gasmetry module and display module, it is characterized in that, described gasmetry module comprises face wind speed module and temperature compensation module, described face wind speed module is circular, middle part is provided with circular hole, in circular hole, be provided with temp-controlling element, face wind speed module connects temperature compensation module, temp-controlling element in circular hole is used for guaranteeing that face wind speed module is in temperature constant state, in the time carrying out gasmetry, air-flow can be taken away the heat of face wind speed module, the temperature of face wind speed module is declined, now temp-controlling element detects after the decline temperature of face wind speed module, send compensating signal to temperature compensation module, temperature compensation module is a compensating circuit, compensating circuit produces corresponding offset current according to the temperature declining, compensation current feedback to face wind speed module makes face wind speed module keep constant temperature, display module is measured the size of current of compensation simultaneously, after corresponding coefficient transforms, the numerical value of wind speed is presented in electrical screen.
2. according to claim 2 wind speed probe, is characterized in that, described electrical screen adopts LED screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157436.7U CN203772892U (en) | 2014-04-02 | 2014-04-02 | Face velocity probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420157436.7U CN203772892U (en) | 2014-04-02 | 2014-04-02 | Face velocity probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772892U true CN203772892U (en) | 2014-08-13 |
Family
ID=51290070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420157436.7U Expired - Fee Related CN203772892U (en) | 2014-04-02 | 2014-04-02 | Face velocity probe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203772892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913594A (en) * | 2014-04-02 | 2014-07-09 | 太仓华风环保科技有限公司 | Face wind speed probe |
-
2014
- 2014-04-02 CN CN201420157436.7U patent/CN203772892U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103913594A (en) * | 2014-04-02 | 2014-07-09 | 太仓华风环保科技有限公司 | Face wind speed probe |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 |