CN106969876A - A kind of dynamic total pressure probe for carrying temperature adjustmemt - Google Patents

A kind of dynamic total pressure probe for carrying temperature adjustmemt Download PDF

Info

Publication number
CN106969876A
CN106969876A CN201710198363.4A CN201710198363A CN106969876A CN 106969876 A CN106969876 A CN 106969876A CN 201710198363 A CN201710198363 A CN 201710198363A CN 106969876 A CN106969876 A CN 106969876A
Authority
CN
China
Prior art keywords
probe
pressure
temperature
temperature sensor
total pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201710198363.4A
Other languages
Chinese (zh)
Other versions
CN106969876B (en
Inventor
马宏伟
赵连鹏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beihang University
Original Assignee
Beihang University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beihang University filed Critical Beihang University
Priority to CN201710198363.4A priority Critical patent/CN106969876B/en
Publication of CN106969876A publication Critical patent/CN106969876A/en
Application granted granted Critical
Publication of CN106969876B publication Critical patent/CN106969876B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/0092—Pressure sensor associated with other sensors, e.g. for measuring acceleration or temperature
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
    • G01L2019/0053—Pressure sensors associated with other sensors, e.g. for measuring acceleration, temperature

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Measuring Fluid Pressure (AREA)

Abstract

本发明属于温度、压力测试技术领域，公开了一种自带温度修正的动态总压探针。该探针包含探针头部和支杆(1)，探针头部圆柱面上开有压力孔(2)和温度传感器安装孔(3)，动态压力传感器安装在探针头部内靠近压力孔(2)的位置，温度传感器受感部安装在温度传感器安装孔(3)上，温度传感器引线(4)和压力传感器引线(5)由支杆(1)内部引出。现有的压力探针和温度探针相比，本发明经过标定，能够同时测量来流的温度，总压参数，由于组合探针尺寸相比于传统探针较小，有效降低了对流场的影响，同时还能利用温度测量结果修正总压测量，提高了测量结果的准确性。

The invention belongs to the technical field of temperature and pressure testing, and discloses a dynamic total pressure probe with temperature correction. The probe includes a probe head and a support rod (1). A pressure hole (2) and a temperature sensor installation hole (3) are opened on the cylindrical surface of the probe head. The dynamic pressure sensor is installed in the probe head close to the pressure The position of the hole (2), the sensing part of the temperature sensor is installed on the temperature sensor installation hole (3), and the temperature sensor lead wire (4) and the pressure sensor lead wire (5) are drawn out from the inside of the support rod (1). Compared with the existing pressure probe and the temperature probe, the present invention has been calibrated and can measure the temperature of the incoming flow and the total pressure parameters at the same time. Since the size of the combined probe is smaller than that of the traditional probe, the convection field is effectively reduced At the same time, the temperature measurement results can be used to correct the total pressure measurement, which improves the accuracy of the measurement results.

Description

一种自带温度修正的动态总压探针A dynamic total pressure probe with temperature correction

技术领域technical field

本发明属于压力温度测试技术领域，涉及一种自带温度修正的动态总压探针，本发明可以同时测量流体的温度和动态总压参数，同时还可以对总压测量结果进行温度修正。The invention belongs to the technical field of pressure and temperature testing, and relates to a dynamic total pressure probe with temperature correction. The invention can simultaneously measure fluid temperature and dynamic total pressure parameters, and can also perform temperature correction on the total pressure measurement result.

背景技术Background technique

温度和压力是流场的两个重要参数。压力探针，以其结构简单、结实耐用、易于操作等优点广泛应用于流场测量，而热电偶、热电阻则是温度测量的主要技术手段。然而，传统的压力探针或者温度探针只能对流场进行单一参数的测量，多参数的测量主要依赖多种探针的同时使用。航空发动机内部结构复杂，而且转子内部以及转/静间的轴向和径向空间十分狭窄，探针的使用尤其是多只探针同时使用不可避免地会对流场产生影响，造成堵塞现象，影响测量精度。Temperature and pressure are two important parameters of the flow field. Pressure probes are widely used in flow field measurement due to their simple structure, durability, and ease of operation, while thermocouples and thermal resistances are the main technical means for temperature measurement. However, traditional pressure probes or temperature probes can only measure a single parameter of the flow field, and multi-parameter measurements mainly rely on the simultaneous use of multiple probes. The internal structure of the aero-engine is complex, and the axial and radial spaces inside the rotor and between the rotor and the static are very narrow. The use of probes, especially the simultaneous use of multiple probes, will inevitably affect the flow field and cause blockage. affect the measurement accuracy.

动态压力的测量过程中为了保证传感器的频响一般将传感器安装在探针头部，距离被测流场比较近，当流场温度变化剧烈时压力传感器可能会发生温度漂移，影响测量结果的准确性。因此，目前科学研究和实际工程应用中缺乏能兼顾多参数测量和温度修正的动态压力探针技术。During the measurement of dynamic pressure, in order to ensure the frequency response of the sensor, the sensor is generally installed on the head of the probe, which is relatively close to the measured flow field. When the temperature of the flow field changes sharply, the pressure sensor may experience temperature drift, which will affect the accuracy of the measurement results. sex. Therefore, there is a lack of dynamic pressure probe technology that can take into account multi-parameter measurement and temperature correction in current scientific research and practical engineering applications.

发明内容Contents of the invention

本发明主要解决的技术问题是：针对目前科学研究和实际工程应用中缺乏能兼顾多参数测量和温度修正的动态压力探针技术，采用组合探针同时获得流场温度和动态总压等参数，减少多个探针对流场造成的不利影响，修正温度对压力传感器的不利影响，提高测量结果的准确性。The technical problem mainly solved by the present invention is: in view of the lack of dynamic pressure probe technology that can take into account multi-parameter measurement and temperature correction in the current scientific research and practical engineering application, the combined probe is used to obtain parameters such as flow field temperature and dynamic total pressure at the same time, Reduce the adverse effects of multiple probes on the flow field, correct the adverse effects of temperature on the pressure sensor, and improve the accuracy of measurement results.

本发明的技术解决方案是：Technical solution of the present invention is:

本发明包含探针头部、支杆(1)，探针头部包含压力孔(2)和温度传感器安装孔(3)。温度传感器引线(4)和压力传感器引线(5)由支杆(1)内部引出。The invention comprises a probe head and a support rod (1), and the probe head includes a pressure hole (2) and a temperature sensor installation hole (3). The temperature sensor lead wire (4) and the pressure sensor lead wire (5) are drawn out from the inside of the support rod (1).

进一步，探针支杆(1)为圆柱柱状中空结构，支杆(1)直径选择4到10毫米，支杆(1)内径比外径小1毫米。Further, the probe support rod (1) is a cylindrical hollow structure, the diameter of the support rod (1) is selected from 4 to 10 mm, and the inner diameter of the support rod (1) is 1 mm smaller than the outer diameter.

进一步，压力孔(2)与温度传感器安装孔(3)大小一致，孔径0.1到5毫米，两孔位于探针头部圆柱面同一周向位置，两孔圆心距离为1.2到1.5倍孔径，压力孔(2)可在温度传感器安装孔(3)上方或者下方。Furthermore, the size of the pressure hole (2) is the same as that of the temperature sensor installation hole (3), with a diameter of 0.1 to 5 mm. The two holes are located at the same circumferential position on the cylindrical surface of the probe head, and the distance between the centers of the two holes is 1.2 to 1.5 times the diameter of the hole. The hole (2) can be above or below the temperature sensor installation hole (3).

进一步，温度传感器受感部安装在温度传感器安装孔(3)上，压力传感器安装在探针头部内靠近压力孔(2)的位置。Further, the sensing part of the temperature sensor is installed on the temperature sensor installation hole (3), and the pressure sensor is installed in the probe head near the pressure hole (2).

进一步，温度传感器选择热电偶或者热电阻。Further, the temperature sensor is selected from a thermocouple or a thermal resistance.

本发明的有益效果是：不仅对被测流场的影响较小，能同时获得流场的总温总压参数，而且能够对动态压力测量结果进行温度修正，提高了测量结果的准确性。The beneficial effect of the invention is that not only the influence on the measured flow field is small, but also the total temperature and pressure parameters of the flow field can be obtained at the same time, and the temperature correction can be performed on the dynamic pressure measurement result, which improves the accuracy of the measurement result.

附图说明Description of drawings

图1是一种自带温度修正的动态总压探针示意图。Figure 1 is a schematic diagram of a dynamic total pressure probe with temperature correction.

其中，1-探针支杆，2-压力孔，3-温度传感器安装孔，4-温度传感器引线，5-压力传感器引线。Among them, 1-probe support rod, 2-pressure hole, 3-temperature sensor installation hole, 4-temperature sensor lead wire, 5-pressure sensor lead wire.

具体实施方式detailed description

下面结合附图和具体实施例对本发明进行详细阐述。The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

如图1所示，本发明包含探针头部、支杆(1)，探针头部包含压力孔(2)和温度传感器安装孔(3)。温度传感器引线(4)和压力传感器引线(5)由支杆(1)内部引出。As shown in Fig. 1, the present invention includes a probe head and a support rod (1), and the probe head includes a pressure hole (2) and a temperature sensor installation hole (3). The temperature sensor lead wire (4) and the pressure sensor lead wire (5) are drawn out from the inside of the support rod (1).

探针支杆(1)为圆柱柱状中空结构，支杆(1)直径选择4毫米，支杆(1)内径比外径小1毫米。The probe support rod (1) is a cylindrical hollow structure, the diameter of the support rod (1) is 4 mm, and the inner diameter of the support rod (1) is 1 mm smaller than the outer diameter.

压力孔(2)与温度传感器安装孔(3)大小一致，孔径0.4毫米，两孔位于探针头部圆柱面同一周向位置，两孔圆心距离为1.2孔径，两安装孔位置可互换。The pressure hole (2) is the same size as the temperature sensor mounting hole (3), with a diameter of 0.4 mm. The two holes are located at the same circumferential position on the cylindrical surface of the probe head. The distance between the centers of the two holes is 1.2 diameters. The positions of the two mounting holes are interchangeable.

温度传感器受感部安装在温度传感器安装孔(3)上，压力传感器安装在探针头部内靠近压力孔(2)的位置。The sensing part of the temperature sensor is installed on the temperature sensor installation hole (3), and the pressure sensor is installed at a position close to the pressure hole (2) in the probe head.

温度传感器选择热电偶。The temperature sensor is a thermocouple.

本发明实施例中介绍的一种自带温度修正的动态总压探针，经过校准标定，可以获得标定数据。实际流场测量时，通过压力传感器的引线可以获得压力传感器电压信号，通过温度传感器引线可以获得温度传感器的电压信号，利用获得的标定数据，进行数据处理，可以获得流场的温度、动态总压等稳态信息，同时能对动态压力测量结果进行温度修正。A dynamic total pressure probe with temperature correction introduced in the embodiment of the present invention can obtain calibration data after calibration. In the actual flow field measurement, the voltage signal of the pressure sensor can be obtained through the lead wire of the pressure sensor, the voltage signal of the temperature sensor can be obtained through the lead wire of the temperature sensor, and the temperature and dynamic total pressure of the flow field can be obtained by using the obtained calibration data for data processing. Steady-state information and temperature correction can be performed on dynamic pressure measurement results at the same time.

Claims (5)

1. a kind of dynamic total pressure probe for carrying temperature adjustmemt, it is characterised in that:Include end of probe, pole (1), end of probe Comprising pressure port (2) and temperature sensor fixing hole (3), temperature sensor wires (4) and pressure sensor lead (5) are by pole (1) it is internal to draw.
2. according to claim 1, a kind of dynamic total pressure probe for carrying temperature adjustmemt, it is characterised in that:Probe pole (1) is circle Post columnar hollow structure, pole (1) diameter selects 4 to 10 millimeters, and pole (1) internal diameter is smaller than external diameter 1 millimeter.
3. according to claim 1, a kind of dynamic total pressure probe for carrying temperature adjustmemt, it is characterised in that：Pressure port (2) and temperature Sensor mounting hole (3) is in the same size, 0.1 to 5 millimeters of aperture, and holes is located at the same circumferential position in the end of probe face of cylinder, two Hole circle center distance is 1.2 to 1.5 times of apertures, and pressure port (2) can be in temperature sensor fixing hole (3) either above or below.
4. according to claim 1, a kind of dynamic total pressure probe for carrying temperature adjustmemt, it is characterised in that：Temperature sensor is felt Portion is arranged on temperature sensor fixing hole (3), and pressure sensor is arranged in end of probe close to the position of pressure port (2).
5. according to claim 1, a kind of dynamic total pressure probe for carrying temperature adjustmemt, it is characterised in that：Temperature sensor is selected Thermocouple or thermal resistance.
CN201710198363.4A 2017-03-29 2017-03-29 A dynamic total pressure probe with temperature correction Active CN106969876B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710198363.4A CN106969876B (en) 2017-03-29 2017-03-29 A dynamic total pressure probe with temperature correction

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710198363.4A CN106969876B (en) 2017-03-29 2017-03-29 A dynamic total pressure probe with temperature correction

Publications (2)

Publication Number Publication Date
CN106969876A true CN106969876A (en) 2017-07-21
CN106969876B CN106969876B (en) 2020-09-25

Family

ID=59335699

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710198363.4A Active CN106969876B (en) 2017-03-29 2017-03-29 A dynamic total pressure probe with temperature correction

Country Status (1)

Country Link
CN (1) CN106969876B (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375707A (en) * 2019-08-23 2019-10-25 辽宁有色基础工程公司 The system and method for remote real time monitoring Cave Temple top plate Dangerous Rock Body deformation
CN111366296A (en) * 2020-05-07 2020-07-03 北京航空航天大学 Steady-state pressure probe for reducing support rod interference by utilizing plasma jet
KR102360197B1 (en) * 2020-08-07 2022-02-08 국방과학연구소 Total pressure measuring probe

Citations (7)

* 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
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 (7)

* 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
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 (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110375707A (en) * 2019-08-23 2019-10-25 辽宁有色基础工程公司 The system and method for remote real time monitoring Cave Temple top plate Dangerous Rock Body deformation
CN110375707B (en) * 2019-08-23 2021-07-02 辽宁有色基础工程有限公司 System and method for remotely monitoring dangerous rock body deformation of top plate of stone cave temple in real time
CN111366296A (en) * 2020-05-07 2020-07-03 北京航空航天大学 Steady-state pressure probe for reducing support rod interference by utilizing plasma jet
KR102360197B1 (en) * 2020-08-07 2022-02-08 국방과학연구소 Total pressure measuring probe

Also Published As

Publication number Publication date
CN106969876B (en) 2020-09-25

Similar Documents

Publication Publication Date Title
CN106840268B (en) Five-hole probe integrating total temperature measurement
CN106885649B (en) Dynamic temperature and pressure combined probe for measuring subsonic two-dimensional unsteady flow field
CN106840271B (en) Combined dynamic probe with temperature correction function for measuring total pressure and speed of fluid
CN106871968B (en) Probe for measuring total pressure of total temperature of multiple points of subsonic flow field
CN106969876A (en) A kind of dynamic total pressure probe for carrying temperature adjustmemt
CN107014434A (en) A kind of conehead steady temperature force combination probe for measuring high subsonics three-dimensional flow field
CN106768827A (en) A kind of steady temperature force combination probe for measuring transonic speed two-dimensional flow field
CN106940230B (en) A nine-hole total temperature measuring probe
CN106840270B (en) A hot wire probe with temperature correction
CN106989896A (en) A kind of dynamic temperature force combination probe for measuring subsonics three-dimensional non-steady flow field
CN119223477B (en) A dynamic total temperature probe and measurement method based on dual-thin-film platinum resistance thermometers
CN106918409B (en) Porous close-proximity total temperature probe
CN106949989A (en) A kind of hemispherical head steady temperature force combination probe for measuring low speed three-dimensional flow field
CN108896198B (en) A straight rod type total temperature probe head based on thermal resistance
CN106918437A (en) A kind of four hole probes for measuring subsonic speed two-dimensional flow field
CN106940207B (en) A combined dynamic probe for measuring the distorted flow field at the turbine inlet
CN106989895A (en) A kind of 12 hole dynamic pressure probes for measuring three-dimensional non-steady complex flowfield
CN106840511B (en) A cone-head four-hole dynamic pressure probe for measuring high-subsonic three-dimensional unsteady flow
Baker et al. The effects of manufacturing methods on the precision of insertion and in-line thermal mass flowmeters
JP2012207932A (en) Temperature distribution measurement sensor
CN107843362A (en) A kind of thermocouple dynamic response performance test device
CN106949990A (en) A kind of wedge head steady temperature force combination probe for measuring subsonic speed three-dimensional flow field
CN210665999U (en) A constant temperature system for calibrating the probe accuracy of a magnetic field tester
CN106768598A (en) It is a kind of measure blade arrange between stagnation pressure along leaf distribution high the porous total pressure probe of cylinder
CN106885684B (en) Three-hole dynamic pressure probe for measuring subsonic two-dimensional unsteady flow field

Legal Events

Date Code Title Description
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Application publication date: 20170721

Assignee: Yangcan (Beijing) Technology Development Co.,Ltd.

Assignor: BEIHANG University

Contract record no.: X2025980004930

Denomination of invention: A dynamic total pressure probe with built-in temperature correction

Granted publication date: 20200925

License type: Common License

Record date: 20250310

EE01 Entry into force of recordation of patent licensing contract