CN106840270A - A kind of hot wire probe with temperature adjustmemt - Google Patents

A kind of hot wire probe with temperature adjustmemt Download PDF

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Publication number
CN106840270A
CN106840270A CN201710204364.5A CN201710204364A CN106840270A CN 106840270 A CN106840270 A CN 106840270A CN 201710204364 A CN201710204364 A CN 201710204364A CN 106840270 A CN106840270 A CN 106840270A
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China
Prior art keywords
hot line
probe
temperature
hot
pole
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CN201710204364.5A
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CN106840270B (en
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马宏伟
赵连鹏
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Beihang University
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Beihang University
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D3/00—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups
    • G01D3/028—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure
    • G01D3/036—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves
    • G01D3/0365—Indicating or recording apparatus with provision for the special purposes referred to in the subgroups mitigating undesired influences, e.g. temperature, pressure on measuring arrangements themselves the undesired influence being measured using a separate sensor, which produces an influence related signal

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)

Abstract

The invention belongs to velocity measurement technologies field, a kind of hot wire probe with temperature adjustmemt is disclosed.The probe includes end of probe, pole (1), end of probe includes temperature sensor (2), hot line support (3) and hot line (4), hot line (4) is welded on hot line support (3), hot line lead (5) is connected by probe pole (1) inner passage with external circuit, temperature sensor (2) is drawn positioned at hot line support (3) mounting surface center, its lead by pole (1) inner passage.Compared with existing pressure probe and temperature probe, the present invention is by demarcation, the static temperature that can measure to flow, velocity magnitude, direction and velocity fluctuation parameter simultaneously, temperature adjustmemt can also be carried out to the measurement result of hot line simultaneously, it is adaptable to measurement temperature and the big flow field of velocity fluctuation.

Description

A kind of hot wire probe with temperature adjustmemt
Technical field
The invention belongs to speed temperature test technical field, it is related to a kind of hot wire probe with temperature adjustmemt, the present invention is not The static temperature and speed parameter of fluid only can be simultaneously measured, and can be used for correcting influence of the static temperature to hot-wire measurement result.
Background technology
Hot wire probe with its size it is small, frequency response is high and is widely used in turbulent flow research.Temperature and speed are close in flow field What cut was closed, and hot wire probe is related to diabatic process, influence of the temperature to hot wire probe measurement result due to its measuring principle Cannot ignore, and traditional hot wire probe can only obtain the velocity information in flow field, it is impossible to obtain temperature this important information, Cannot more temperature adjustmemt be carried out to the measurement result of hot line.
Temperature when hot wire probe cannot be completely secured the temperature in flow field with demarcation in actual use is completely the same, And temperature is also to change constantly in practical flow field, therefore by the hot wire probe measurement result of temperature adjustmemt it is not Inaccurate.
Current scientific research and engineering takes into account the hot line of the acquisition and temperature adjustmemt of temperature information using middle shortage Probe technique.
The content of the invention
The present invention solves the technical problem of：For current scientific research and engineering temperature is taken into account using middle shortage The acquisition of degree information and the hot wire probe technology of temperature adjustmemt, a kind of combination dynamic probe of invention, are passed using hot line and temperature The mode of sensor combination obtains flow field velocity and static temperature information, influence of the accurate amendment static temperature to hot-wire measurement simultaneously.
Technical solution of the invention is：
The present invention includes end of probe, pole (1), and end of probe is passed comprising hot line (4), hot line support (3) and temperature Sensor (2), hot line (4) is welded on hot line support (3), and hot line lead (5) is drawn by probe pole (1) inner passage, temperature Sensor (2) is fixed on hot line support (3) mounting surface center, and temperature sensor wires (6) are by pole (1) inner passage Draw.
Further, probe pole (1) is cylindrical-shaped structure, and inside is provided with passage, and pole (1) external diameter selects 4 to 10 millimeters, Internal diameter is smaller than external diameter 1 millimeter.
Further, hot line (4) material be tungsten, platinum or platinumiridio, its a diameter of 1 to 30 microns, hot line (4) length with Diameter ratio is 100 to 600.
Further, hot line support (3) is metal, and support (3) is connected with mounting surface insulation, the selection of hot line (4) head construction Monofilament or multifibres.
Further, temperature sensor (2) selects the thermocouple or thermal resistance of high frequency sound.
The beneficial effects of the invention are as follows：Influence not only to being tested flow field is smaller, it is ensured that the reliability of installation, but also The static temperature and velocity information in flow field can be simultaneously obtained, trip temperature can be entered to hot line velocity measurement using temperature measurement result Amendment, improves the accuracy of hot-wire measurement.
Brief description of the drawings
Fig. 1 is the planar structure schematic diagram of combination probe.
Wherein, 1- hot wire probes pole, 2- temperature sensor detector probes, 3- hot wire probe hot line supports, 4- hot lines, 5- heat Line lead, 6- temperature sensor wires.
Specific embodiment
The present invention will be described in detail with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention includes end of probe, pole (1), end of probe includes hot line (4), hot line support (3) And temperature sensor (2), hot line (4) is welded on hot line support (3), and hot line lead (5) is by probe pole (1) inner passage Draw, temperature sensor (2) is fixed on hot line support (3) mounting surface center, and temperature sensor wires (6) are by pole (1) inner passage is drawn.
Probe pole (1) is cylindrical-shaped structure, and inside is provided with passage, and pole (1) external diameter selects 4 millimeters, and internal diameter compares external diameter It is small 1 millimeter.
Hot line (4) material is tungsten, platinum or platinumiridio, and its a diameter of 5 microns, hot line (4) L/D ratio value is 600。
Hot line support (3) is metal, and support (3) is connected with mounting surface insulation, hot line (4) head construction selection monofilament.
Temperature sensor (2) selects the thermocouple of high frequency sound.
A kind of hot wire probe with temperature adjustmemt introduced in the embodiment of the present invention, demarcates by calibration, can be marked Fixed number evidence.When practical flow field is measured, the voltage signal of hot line can be obtained by the lead of hot wire probe, by temperature sensor Lead can obtain the voltage signal of temperature sensor, using the nominal data for obtaining, carry out data processing, can obtain flow field Velocity magnitude, direction, the multidate information such as velocity fluctuation and temperature, while trip temperature can be entered to the measurement result of hot line repairing Just.

Claims (5)

1. a kind of hot wire probe with temperature adjustmemt, it is characterised in that：Comprising end of probe, pole (1), end of probe includes temperature Degree sensor (2), hot line support (3) and hot line (4), hot line (4) are welded on hot line support (3), and hot line lead (5) is by visiting Pin pole (1) inner passage is drawn, and temperature sensor (2) is fixed on hot line support (3) mounting surface center, temperature sensor Lead (6) is drawn by pole (1) inner passage.
2. a kind of hot wire probe with temperature adjustmemt according to claim 1, it is characterised in that：Probe pole (1) is circle Column structure, inside is provided with passage, and pole (1) external diameter selects 4 to 10 millimeters, and internal diameter is smaller than external diameter 1 millimeter.
3. a kind of hot wire probe with temperature adjustmemt according to claim 1, it is characterised in that：Hot line (4) material be tungsten, Platinum or platinumiridio, its a diameter of 1 to 30 microns, hot line (4) L/D ratio value is 100 to 600.
4. a kind of hot wire probe with temperature adjustmemt according to claim 1, it is characterised in that：Hot line support (3) is gold Category, support (3) is connected with mounting surface insulation, hot line (4) head construction selection monofilament or multifibres.
5. a kind of hot wire probe with temperature adjustmemt according to claim 1, it is characterised in that：Temperature sensor (2) is selected Select the thermocouple or thermal resistance of high frequency sound.
CN201710204364.5A 2017-03-31 2017-03-31 Hot wire probe with temperature correction function Active CN106840270B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710204364.5A CN106840270B (en) 2017-03-31 2017-03-31 Hot wire probe with temperature correction function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710204364.5A CN106840270B (en) 2017-03-31 2017-03-31 Hot wire probe with temperature correction function

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CN106840270A true CN106840270A (en) 2017-06-13
CN106840270B CN106840270B (en) 2020-09-25

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864736A (en) * 2019-11-22 2020-03-06 清华大学 Flexible sensor strain and temperature compensation method and multi-sensing integrated sensor
CN111624363A (en) * 2020-05-27 2020-09-04 中国空气动力研究与发展中心高速空气动力研究所 Hot wire anemometer calibration method considering influence of fluid compressibility
CN112255428A (en) * 2020-11-13 2021-01-22 中国华能集团清洁能源技术研究院有限公司 Wind turbine generator set wind speed measuring system and method based on hot wire wind speed sensing
CN113820026A (en) * 2021-10-15 2021-12-21 西安交通大学 Thermocouple combined type speed potential probe and measuring method

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333499A (en) * 1970-12-14 1973-10-10 Proton Ag Sensing devices
GB2064726B (en) * 1979-11-26 1983-06-02 United Technologies Corp Temperature or pressure responsive valve
CN101788313A (en) * 2010-03-23 2010-07-28 上海交通大学 High-frequency response fluid transient flow meter
CN201662459U (en) * 2009-09-07 2010-12-01 天津空中代码工程应用软件开发有限公司 Combined measuring tool for flow field pressure and speed
CN202886398U (en) * 2012-09-18 2013-04-17 北京检测仪器有限公司 Hot-bulb anemograph using thermocouple
CN203053472U (en) * 2012-09-18 2013-07-10 天津空中代码工程应用软件开发有限公司 Tool for measuring pressure and velocity of eddy flow field
CN204373690U (en) * 2015-01-13 2015-06-03 西安远方航空技术发展总公司 A kind of stagnation temperature total pressure measure apparatus
CN106483330A (en) * 2016-12-07 2017-03-08 中南大学 One kind is based on reflective silk thread attitude angle visual identity two-D wind speed wind direction method of testing

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1333499A (en) * 1970-12-14 1973-10-10 Proton Ag Sensing devices
GB2064726B (en) * 1979-11-26 1983-06-02 United Technologies Corp Temperature or pressure responsive valve
CN201662459U (en) * 2009-09-07 2010-12-01 天津空中代码工程应用软件开发有限公司 Combined measuring tool for flow field pressure and speed
CN101788313A (en) * 2010-03-23 2010-07-28 上海交通大学 High-frequency response fluid transient flow meter
CN202886398U (en) * 2012-09-18 2013-04-17 北京检测仪器有限公司 Hot-bulb anemograph using thermocouple
CN203053472U (en) * 2012-09-18 2013-07-10 天津空中代码工程应用软件开发有限公司 Tool for measuring pressure and velocity of eddy flow field
CN204373690U (en) * 2015-01-13 2015-06-03 西安远方航空技术发展总公司 A kind of stagnation temperature total pressure measure apparatus
CN106483330A (en) * 2016-12-07 2017-03-08 中南大学 One kind is based on reflective silk thread attitude angle visual identity two-D wind speed wind direction method of testing

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110864736A (en) * 2019-11-22 2020-03-06 清华大学 Flexible sensor strain and temperature compensation method and multi-sensing integrated sensor
CN110864736B (en) * 2019-11-22 2020-12-15 清华大学 Flexible sensor strain and temperature compensation method and multi-sensing integrated sensor
CN111624363A (en) * 2020-05-27 2020-09-04 中国空气动力研究与发展中心高速空气动力研究所 Hot wire anemometer calibration method considering influence of fluid compressibility
CN111624363B (en) * 2020-05-27 2021-11-19 中国空气动力研究与发展中心高速空气动力研究所 Hot wire anemometer calibration method considering influence of fluid compressibility
CN112255428A (en) * 2020-11-13 2021-01-22 中国华能集团清洁能源技术研究院有限公司 Wind turbine generator set wind speed measuring system and method based on hot wire wind speed sensing
CN113820026A (en) * 2021-10-15 2021-12-21 西安交通大学 Thermocouple combined type speed potential probe and measuring method

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