CN106595903B - A kind of device and measurement method measuring mechanical temperature-sensing element (device) micro-displacement - Google Patents
A kind of device and measurement method measuring mechanical temperature-sensing element (device) micro-displacement Download PDFInfo
- Publication number
- CN106595903B CN106595903B CN201611083628.8A CN201611083628A CN106595903B CN 106595903 B CN106595903 B CN 106595903B CN 201611083628 A CN201611083628 A CN 201611083628A CN 106595903 B CN106595903 B CN 106595903B
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- CN
- China
- Prior art keywords
- bar
- temperature
- displacement
- mandril
- sensing element
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- 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.)
- Expired - Fee Related
Links
- 238000006073 displacement reaction Methods 0.000 title claims abstract description 27
- 238000000691 measurement method Methods 0.000 title claims abstract description 5
- 230000003321 amplification Effects 0.000 claims abstract description 19
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 19
- 238000005259 measurement Methods 0.000 claims abstract description 16
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000009434 installation Methods 0.000 claims abstract description 3
- 239000000463 material Substances 0.000 claims description 5
- 210000004243 sweat Anatomy 0.000 claims description 4
- 239000000956 alloy Substances 0.000 claims description 2
- 229910045601 alloy Inorganic materials 0.000 claims description 2
- 239000000446 fuel Substances 0.000 description 4
- 239000000295 fuel oil Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K15/00—Testing or calibrating of thermometers
- G01K15/007—Testing
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The present invention relates to a kind of devices and measurement method for measuring mechanical temperature-sensing element (device) micro-displacement, it is mounted on pedestal, thermometer component erecting bed is equipped in one end of pedestal, bottom bar (1) is equipped on erecting bed, thermometer component is by bottom bar (1) and mobile bar (2) clamping installation, mobile bar (2) is held and can be axially moved along mobile bar by mobile bar erecting bed, the other end be connected with mandril (3), the other end of mandril (3) is withstood in amplification bar (4), the one end for amplifying bar passes through pin (5), screw and gasket clearance fit are mounted on the base, amplification bar (4) can rotate clockwise under the promotion of mobile bar (2) and mandril (3) around pin (5), the other end of amplification bar (4) is connected with displacement measurement table.The present invention may be implemented to measure after amplifying micro-displacement；And according to temperature-placement property of dut temperature sensing element, magnification ratio is adjusted, the scope of application is wider.
Description
Technical field
The invention belongs to aero-engine lower-grade fuel components testing fields, are related to mechanical temperature-sensing element (device) temperature
The measurement of micro-displacement when degree variation.
Background technique
Aero-engine fuel regulator generallys use mechanical temperature-sensing element (device) such as temperature-compensating plate, temperature bar to combustion
Oil stream amount compensates.When fuel oil temperature variation, temperature-compensating plate, temperature bar change in displacement change differential pressure valve or metering
The fuel oil area of passage of valve achievees the purpose that fuel oil temperature compensates to change the fuel flow of supply aero-engine.Cause
This, temperature-compensating plate, the design of the temperature movement characteristic of temperature bar and verifying are particularly important.
Temperature-compensating plate, the temperature movement characteristic of temperature bar in order to obtain need one kind simply, conveniently, accurately to measure
Device.
Summary of the invention
The purpose of the present invention is: it invents one kind and simply, conveniently, accurately measures mechanical temperature-sensing element (device) micro-displacement
Device.
The technical scheme is that
A kind of device measuring mechanical temperature-sensing element (device) micro-displacement, described device are mounted on pedestal, wherein
Pedestal one end is equipped with thermometer component erecting bed, bottom bar 1 is equipped on erecting bed, thermometer component is by bottom bar 1 and mobile bar 2
Clamping installation, mobile bar 2 held and can be axially moved along mobile bar by mobile bar erecting bed, the other end be connected with mandril 3,
The other end of mandril 3 is withstood on amplification bar 4, and the one end for amplifying bar is mounted on pedestal by pin 5, screw and gasket clearance fit
On, amplification bar 4 can rotate clockwise under the promotion of mobile bar 2 and mandril 3 around pin 5, and the other end and displacement for amplifying bar 4 are surveyed
Scale is connected.
Pedestal, bottom bar 1, mobile bar 2, mandril 3, amplification bar 4, pin 5, screw and gasket are that low-expansion alloy requires material
Linear expansion coefficient be not more than 1.8 × 10-6/ DEG C material, specifically be 4J32YB/T 5241.
A method of mechanical temperature-sensing element (device) micro-displacement being measured, the temperature that will be measured using mobile bar, mandril
Degree sensing element is fixed with bottom bar, and level is put into sweat box.The record measurement initial scale value L of table0And Current Temperatures T0；It adjusts
Sweat box temperature is to measured piece operating temperature range certain point.When the set temperature is reached, Current Temperatures T is recorded1And measurement table
Numerical value L1.According to amplification bar-pin, jack end-pin distance, according to lever principle amplification bar-pin and jack end-
Pin ratio of distances constant is magnification ratio K.The temperature Δ T- displacement δ relationship of dut temperature sensing element can then be calculated are as follows:
δ=K* (L1-L0)/Δ T=K* (L1-L0)/(T1-T0)
The invention has the advantages that temperature-displacement variable of Aviation Fuel attachment temperature-sensing element (device) is often smaller, no
Easily directly measure.The present invention is put micro-displacement by simple lever amplification principle, and the control to material, realization
It is measured after big；And according to temperature-placement property of dut temperature sensing element, by making various sizes of amplification
Bar, is adjusted magnification ratio, and the scope of application is wider.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Specific embodiment
The present invention is described in further details below, referring to Fig. 1.By taking temperature increases as an example, dut temperature sensing element
Because expansion generates displacement, drives mandril 3 to move to right diagram direction by mobile bar 2, then push amplification bar 4 clockwise around pin 5
Rotation, amplification 4 other end of bar are connected with measurement table, change measurement table numerical value, realize the purpose of micro-displacement measurement by magnification.
Note pin is origin O, and amplifying bar is a at a distance from displacement measurement gauge outfit contact point A to O, and amplification bar connects with mandril
The distance of contact B to O is b, i.e. K is a/b.Three groups of experimental record or temperatures above data and displacement data, acquire mean value and bring into
Formula δ=K* (L1-L0)/Δ T=K* (L1-L0)/(T1-T0), it can be in the hope of going out thermometer component variations displacement.
Claims (4)
1. a kind of device for measuring mechanical temperature-sensing element (device) micro-displacement, it is characterised in that: it is mounted on pedestal,
One end of pedestal is equipped with thermometer component erecting bed, is equipped with bottom bar (1) on erecting bed, and thermometer component is by bottom bar (1) and moves
Lever (2) clamping installation, mobile bar (2) are held and can be axially moved along mobile bar by mobile bar erecting bed, mobile bar (2)
The other end is connected with mandril (3), and the other end of mandril (3) is withstood in amplification bar (4), and the one end for amplifying bar passes through pin (5), spiral shell
Nail and gasket clearance fit are mounted on the base, and amplification bar (4) can be around pin (5) under the promotion of mobile bar (2) and mandril (3)
It rotates clockwise, the other end of amplification bar (4) is connected with displacement measurement table.
2. device as described in claim 1, it is characterised in that: pedestal, bottom bar (1), mobile bar (2), mandril (3), amplification bar
(4), the material of pin (5), screw and gasket is low-expansion alloy, and the linear expansion coefficient of material is not more than 1.8 × 10-6/
℃。
3. measuring the measurement method of the device of mechanical temperature-sensing element (device) micro-displacement as described in claim 1, feature exists
In: measured temperature-sensing element (device) and bottom bar (1) are fixed on the base using mobile bar (2), mandril (3), level is put into
In sweat box；The record measurement initial scale value L0 and Current Temperatures T0 of table；Sweat box temperature is adjusted to measured piece operating temperature model
The temperature spot enclosed；When the set temperature is reached, Current Temperatures T1 and measurement table numerical value L1 is recorded；According to lever principle, pin is remembered
For origin O, amplifying bar is a at a distance from displacement measurement gauge outfit contact point A to O, amplifies bar at a distance from ejector pin contact point B to O
It is a/b for b, magnification ratio K；The temperature Δ T- displacement δ relationship of dut temperature sensing element can then be calculated are as follows:
δ=K* (L1-L0)/Δ T=K* (L1-L0)/(T1-T0)。
4. measurement method as claimed in claim 3, which is characterized in that when the temperature increases, dut temperature sensing element is because swollen
Swollen generation displacement, drives mandril (3) to move to right, then amplification bar (4) is pushed to rotate clockwise around pin (5) by mobile bar (2),
Amplification bar (4) other end is connected with measurement table, changes measurement table numerical value, realizes the purpose of micro-displacement measurement by magnification；Remember pin
For origin O, amplifying bar is a at a distance from displacement measurement gauge outfit contact point A to O, amplifies bar at a distance from ejector pin contact point B to O
It is a/b for b, i.e. K.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611083628.8A CN106595903B (en) | 2016-11-30 | 2016-11-30 | A kind of device and measurement method measuring mechanical temperature-sensing element (device) micro-displacement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611083628.8A CN106595903B (en) | 2016-11-30 | 2016-11-30 | A kind of device and measurement method measuring mechanical temperature-sensing element (device) micro-displacement |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106595903A CN106595903A (en) | 2017-04-26 |
| CN106595903B true CN106595903B (en) | 2019-09-24 |
Family
ID=58594316
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611083628.8A Expired - Fee Related CN106595903B (en) | 2016-11-30 | 2016-11-30 | A kind of device and measurement method measuring mechanical temperature-sensing element (device) micro-displacement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106595903B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201569417U (en) * | 2009-11-02 | 2010-09-01 | 河北东旭投资集团有限公司 | Real-time measuring device for thermal expansion of overflow brick |
| CN202018262U (en) * | 2011-04-07 | 2011-10-26 | 石家庄开发区中实检测设备有限公司 | Displacement measuring device of thermal deformation temperature measuring device |
| CN204807221U (en) * | 2015-06-12 | 2015-11-25 | 杭州柯航仪器仪表有限公司 | Clock and watch formula temperature measurement appearance |
| WO2015191143A2 (en) * | 2014-03-26 | 2015-12-17 | The Regents Of The University Of Michigan | Strain amplification sensor |
| CN205049078U (en) * | 2015-09-25 | 2016-02-24 | 山东电工电气日立高压开关有限公司 | Generating line expansion displacement indicator subassembly |
| CN106153670A (en) * | 2016-09-22 | 2016-11-23 | 济南大学 | A kind of linear expansion coefficient measuring instrument based on Hall effect |
-
2016
- 2016-11-30 CN CN201611083628.8A patent/CN106595903B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201569417U (en) * | 2009-11-02 | 2010-09-01 | 河北东旭投资集团有限公司 | Real-time measuring device for thermal expansion of overflow brick |
| CN202018262U (en) * | 2011-04-07 | 2011-10-26 | 石家庄开发区中实检测设备有限公司 | Displacement measuring device of thermal deformation temperature measuring device |
| WO2015191143A2 (en) * | 2014-03-26 | 2015-12-17 | The Regents Of The University Of Michigan | Strain amplification sensor |
| CN204807221U (en) * | 2015-06-12 | 2015-11-25 | 杭州柯航仪器仪表有限公司 | Clock and watch formula temperature measurement appearance |
| CN205049078U (en) * | 2015-09-25 | 2016-02-24 | 山东电工电气日立高压开关有限公司 | Generating line expansion displacement indicator subassembly |
| CN106153670A (en) * | 2016-09-22 | 2016-11-23 | 济南大学 | A kind of linear expansion coefficient measuring instrument based on Hall effect |
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| Publication number | Publication date |
|---|---|
| CN106595903A (en) | 2017-04-26 |
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Address after: 102200 No. 1 Li Xiang Road, Changping District science and Technology Park, Beijing Patentee after: CHINA AEROSPACE BEIJING HANGKE ENGINE CONTROL SYSTEM TECHNOLOGY Co.,Ltd. Address before: 102200 No.1 Lixiang Road, Science Park, Changping District, Beijing Patentee before: BEIJING HANGKE ENGINE CONTROL SYSTEM SCIENCE & TECHNOLOGY Co.,Ltd. |
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| 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: 20190924 |