CN105675192B - A kind of electromagnetic pulse force measuring method and device - Google Patents
A kind of electromagnetic pulse force measuring method and device Download PDFInfo
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- CN105675192B CN105675192B CN201410663186.9A CN201410663186A CN105675192B CN 105675192 B CN105675192 B CN 105675192B CN 201410663186 A CN201410663186 A CN 201410663186A CN 105675192 B CN105675192 B CN 105675192B
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- equilateral triangle
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- triangle aluminium
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Abstract
The present invention relates to electromagnetism field, a kind of electromagnetic pulse force measuring method and device are provided, including：Discharge capacity (1), strap coil (2), equilateral triangle aluminium sheet (3), high-speed camera (4), control switch (6), spring (9)；Strap coil (2) is fixed on following table (7), strap coil (2) one end is electrically connected with discharge capacity (1) one end, strap coil (2) other end is electrically connected with control switch (6) one end, and discharge capacity (1) other end is electrically connected with control switch (6) other end；It is hanging immediately below strap coil (2) to place equilateral triangle aluminium sheet (3), the equilateral triangle aluminium sheet (3) is parallel with strap coil (2), and three vertex of equilateral triangle aluminium sheet (3) pass through spring (9) and connect upwards with these three points in the subpoint of upper table surface (8)；Upper table surface (8) is parallel with following table (7)；High-speed camera (4) shoots equilateral triangle aluminium sheet (3) from horizontal direction.The present invention being capable of accurate measuring system impulsive force change procedure.
Description
Technical field
The present invention relates to electromagnetism field more particularly to a kind of electromagnetic pulse force measuring methods and device.
Background technique
It is domestic in recent years to be had conducted extensive research in terms of aircraft deicing in electromagnetic pulse, the U.S. in terms of electromagnetic pulse into
A large number of experiments and flight test are gone, only Russia is applied in terms of electromagnetic pulse, but the fatigue problem of covering is still
It is unresolved.Electromagnetic pulse deicing system not only weight and at low cost, but also small power consumption, it is reliably, easy-maintaining, there is preferably development
Prospect.Since the electric discharge of electromagnetic pulse deicing system capacitor is extremely short, it is transient changing, coil is unable to measure by conventional equipment instrument
The impulsive force applied to covering.Covering stress is too small will be so that system deicing function fails, and covering stress crosses senior general and damages covering
Structure, therefore electromagnetic pulse power measurement covering stress becomes key.
Summary of the invention
The purpose of the present invention is：
It is proposed a kind of electromagnetic pulse force measuring method and device, it being capable of accurate measuring system impulsive force change procedure.
The technical scheme is that：
A kind of electromagnetic pulse force measuring device, including：
Discharge capacity 1, strap coil 2, equilateral triangle aluminium sheet 3, high-speed camera 4, control switch 6, spring 9；
Strap coil 2 is fixed on following table 7, and 2 one end of strap coil is electrically connected with 1 one end of discharge capacity, strap coil 2
The other end is electrically connected with 6 one end of control switch, and 1 other end of discharge capacity is electrically connected with 6 other end of control switch；In strap coil
Hanging immediately below 2 to place equilateral triangle aluminium sheet 3, the equilateral triangle aluminium sheet 3 is parallel with strap coil 2, equilateral triangle aluminium sheet 3
Three vertex are connect with these three points in the subpoint of upper table surface 8 upwards by spring 9；Upper table surface 8 is parallel with following table 7；It is high
Fast video camera 4 shoots equilateral triangle aluminium sheet 3 from horizontal direction.
Specifically, 2 diameter of strap coil is in 100mm hereinafter, 3 center of gravity of equilateral triangle aluminium sheet and side distance are coil diameter
10 times or more；It is per second that 4 capture rate of high-speed camera is more than or equal to million frames.
A kind of electromagnetic pulse force measuring method, including：
Step 1 opens three vertex A, B, C that high-speed camera 4 shoots equilateral triangle aluminium sheet 3,
Step 2 presses control switch, discharge capacity electric discharge, the vibration up and down under strap coil effect of equilateral triangle aluminium sheet 3
Dynamic, high-speed camera shoots the displacement process on three vertex of equilateral triangle aluminium sheet；
Step 3 calculates equilateral triangle aluminium sheet three tops by 4 camera picture of high-speed camera and video camera imaging ratio
The actual displacement variation of point：
The practical tensile elongation k of vertex A institute connecting spring1dA, the practical tensile elongation k of vertex B institute connecting spring2dB, vertex C
The practical tensile elongation k of institute's connecting spring3dC；
Wherein, vertex A video camera imaging ratio is k1, vertex B video camera imaging ratio is k2, vertex C video camera imaging ratio
Example is k3；Vertex A institute connecting spring tensile elongation d in camera pictureA, vertex B institute connecting spring stretches length in camera picture
Spend dB, vertex C institute connecting spring tensile elongation d in camera pictureC
Step 4 calculates equilateral triangle aluminium sheet center of gravity by the actual displacement variation on three vertex of equilateral triangle aluminium sheet
Actual displacement variation：
The tensile elongation of equilateral triangle aluminium sheet center of gravity is (k1dA+k2dB+k3dC)/3；
The actual displacement variation of equilateral triangle aluminium sheet center of gravity is combined the elastic coefficient to calculate equilateral triangle by step 5
Impulsive force change procedure suffered by aluminium sheet：
The stress of triangle aluminium sheet is：3*F*(k1dA+k2dB+k3dC)/3=F* (k1dA+k2dB+k3dC),
Wherein, F is the elastic coefficient.
It is an advantage of the invention that：
The present invention can capture the lower entire dynamic change mistake of spring stress using the shooting stress aluminium sheet displacement of ultrahigh speed video camera
Journey, measurement accuracy are high；
The present invention simulates covering stress using equilateral triangle aluminium sheet, can be displaced equilateral triangle aluminium sheet stress and be equivalent to triangle
Shape displacement of center of gravity, impulsive force calculate simple.
Detailed description of the invention
Fig. 1 electro-impulse deicing system impulsive force measures scheme of installation；
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
A kind of electromagnetic pulse force measuring device, as shown in Figure 1, including：
Discharge capacity 1, strap coil 2, equilateral triangle aluminium sheet 3, high-speed camera 4, control switch 6, spring 9；
Strap coil 2 is fixed on following table 7, and 2 one end of strap coil is electrically connected with 1 one end of discharge capacity, strap coil 2
The other end is electrically connected with 6 one end of control switch, and 1 other end of discharge capacity is electrically connected with 6 other end of control switch；In strap coil
Hanging immediately below 2 to place equilateral triangle aluminium sheet 3, the equilateral triangle aluminium sheet 3 is parallel with strap coil 2, equilateral triangle aluminium sheet 3
Three vertex are connect with these three points in the subpoint of upper table surface 8 upwards by spring 9；Upper table surface 8 is parallel with following table 7；It is high
Fast video camera 4 shoots equilateral triangle aluminium sheet 3 from horizontal direction.
Specifically, 2 diameter of strap coil is in 100mm hereinafter, 3 center of gravity of equilateral triangle aluminium sheet and side distance are coil diameter
10 times or more；It is per second that 4 capture rate of high-speed camera is more than or equal to million frames.
A kind of electromagnetic pulse force measuring method, including：
Step 1 opens three vertex A, B, C that high-speed camera 4 shoots equilateral triangle aluminium sheet 3,
Step 2 presses control switch, discharge capacity electric discharge, the vibration up and down under strap coil effect of equilateral triangle aluminium sheet 3
Dynamic, high-speed camera shoots the displacement process on three vertex of equilateral triangle aluminium sheet；
Step 3 calculates equilateral triangle aluminium sheet three tops by 4 camera picture of high-speed camera and video camera imaging ratio
The actual displacement variation of point：
The practical tensile elongation k of vertex A institute connecting spring1dA, the practical tensile elongation k of vertex B institute connecting spring2dB, vertex C
The practical tensile elongation k of institute's connecting spring3dC；
Wherein, vertex A video camera imaging ratio is k1, vertex B video camera imaging ratio is k2, vertex C video camera imaging ratio
Example is k3；Vertex A institute connecting spring tensile elongation d in camera pictureA, vertex B institute connecting spring stretches length in camera picture
Spend dB, vertex C institute connecting spring tensile elongation d in camera pictureC
Step 4 calculates equilateral triangle aluminium sheet center of gravity by the actual displacement variation on three vertex of equilateral triangle aluminium sheet
Actual displacement variation：
The tensile elongation of equilateral triangle aluminium sheet center of gravity is (k1dA+k2dB+k3dC)/3；
The actual displacement variation of equilateral triangle aluminium sheet center of gravity is combined the elastic coefficient to calculate equilateral triangle by step 5
Impulsive force change procedure suffered by aluminium sheet：
The stress of triangle aluminium sheet is：3*F*(k1dA+k2dB+k3dC)/3=F* (k1dA+k2dB+k3dC),
Wherein, F is the elastic coefficient.
The present invention can apply the impulsive force suffered by aircraft wing electro-impulse deicing system covering to measure, and can accurately measure
System pulses power change procedure is suitable for the development of aircraft electro-impulse deicing system.
Claims (3)
1. a kind of electromagnetic pulse force measuring device, which is characterized in that including：
Discharge capacity (1), strap coil (2), equilateral triangle aluminium sheet (3), high-speed camera (4), control switch (6), spring
(9)；
Strap coil (2) is fixed on following table (7), and strap coil (2) one end is electrically connected with discharge capacity (1) one end, copper strips
Coil (2) other end is electrically connected with control switch (6) one end, and discharge capacity (1) other end is electrically connected with control switch (6) other end
It connects；It is hanging immediately below strap coil (2) to place equilateral triangle aluminium sheet (3), the equilateral triangle aluminium sheet (3) and strap coil
(2) in parallel, the subpoint in upper table surface (8) is put with these three upwards by spring (9) in three vertex of equilateral triangle aluminium sheet (3)
Connection；Upper table surface (8) is parallel with following table (7)；High-speed camera (4) shoots equilateral triangle aluminium sheet (3) from horizontal direction.
2. a kind of electromagnetic pulse force measuring device as described in claim 1, which is characterized in that strap coil (2) diameter exists
100mm is hereinafter, equilateral triangle aluminium sheet (3) center of gravity and side distance are 10 times or more of coil diameter；High-speed camera (4) shooting
It is per second that rate is more than or equal to million frames.
3. a kind of a kind of electromagnetic pulse force measuring method of electromagnetic pulse force measuring device as described in claim 1, feature
It is, including：
Step 1, three vertex A, B, C for opening high-speed camera (4) shooting equilateral triangle aluminium sheet (3),
Step 2 presses control switch, discharge capacity electric discharge, and equilateral triangle aluminium sheet (3) vibrates up and down under strap coil effect,
The displacement process on high-speed camera shooting three vertex of equilateral triangle aluminium sheet；
Step 3 calculates three vertex of equilateral triangle aluminium sheet by high-speed camera (4) camera picture and video camera imaging ratio
Actual displacement variation：
The practical tensile elongation k of vertex A institute connecting spring1dA, the practical tensile elongation k of vertex B institute connecting spring2dB, vertex C connected
The practical tensile elongation k of spring3dC；
Wherein, vertex A video camera imaging ratio is k1, vertex B video camera imaging ratio is k2, vertex C video camera imaging ratio is
k3；Vertex A institute connecting spring tensile elongation d in camera pictureA, vertex B institute connecting spring tensile elongation in camera picture
dB, vertex C institute connecting spring tensile elongation d in camera pictureC；
Step 4, the reality that equilateral triangle aluminium sheet center of gravity is calculated by the actual displacement variation on three vertex of equilateral triangle aluminium sheet
Change in displacement：
The tensile elongation of equilateral triangle aluminium sheet center of gravity is (k1dA+k2dB+k3dC)/3；
The actual displacement variation of equilateral triangle aluminium sheet center of gravity is combined the elastic coefficient to calculate equilateral triangle aluminium sheet by step 5
Suffered impulsive force change procedure：
The stress of triangle aluminium sheet is：3*F*(k1dA+k2dB+k3dC)/3=F* (k1dA+k2dB+k3dC),
Wherein, F is the elastic coefficient.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410663186.9A CN105675192B (en) | 2014-11-19 | 2014-11-19 | A kind of electromagnetic pulse force measuring method and device |
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| CN201410663186.9A CN105675192B (en) | 2014-11-19 | 2014-11-19 | A kind of electromagnetic pulse force measuring method and device |
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| CN105675192A CN105675192A (en) | 2016-06-15 |
| CN105675192B true CN105675192B (en) | 2018-11-16 |
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| CN110940602B (en) * | 2019-12-13 | 2020-11-06 | 四川大学 | Synchronous measurement device and method for pulse electromagnetic force and discharge inductance of RLC (radio Link control) discharge circuit |
| CN111431121A (en) * | 2020-04-03 | 2020-07-17 | 广东工业大学 | Handheld electric pulse defroster |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0234418A2 (en) * | 1986-02-24 | 1987-09-02 | The B.F. GOODRICH Company | Deicer control system |
| DE3725434A1 (en) * | 1986-08-05 | 1988-02-18 | Basf Ag | Measuring method and measuring arrangement for determining the magnetic head adhesion on a magnetic disk |
| CN1332684A (en) * | 1998-12-01 | 2002-01-23 | 达特茅斯学院理事会 | Methods and structures for removing ice from surfaces |
| CN1529296A (en) * | 2003-09-27 | 2004-09-15 | 四川大学 | Electromagnetism measuring instrument and its measuring method |
| CN102109436A (en) * | 2010-12-24 | 2011-06-29 | 江苏大学 | Electromagnetic impact dynamic tensile test method and device |
| CN102944474A (en) * | 2012-11-29 | 2013-02-27 | 哈尔滨工业大学 | High-speed one-way tensile test device and method |
| CN103940541A (en) * | 2014-04-29 | 2014-07-23 | 上海卫星工程研究所 | Micro-separating-force measurement method based on high-speed photography |
| CN104089753A (en) * | 2014-07-08 | 2014-10-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Tester used for measuring stress of flexible objects in low-speed wind tunnel and testing method thereof |
-
2014
- 2014-11-19 CN CN201410663186.9A patent/CN105675192B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0234418A2 (en) * | 1986-02-24 | 1987-09-02 | The B.F. GOODRICH Company | Deicer control system |
| DE3725434A1 (en) * | 1986-08-05 | 1988-02-18 | Basf Ag | Measuring method and measuring arrangement for determining the magnetic head adhesion on a magnetic disk |
| CN1332684A (en) * | 1998-12-01 | 2002-01-23 | 达特茅斯学院理事会 | Methods and structures for removing ice from surfaces |
| CN1529296A (en) * | 2003-09-27 | 2004-09-15 | 四川大学 | Electromagnetism measuring instrument and its measuring method |
| CN102109436A (en) * | 2010-12-24 | 2011-06-29 | 江苏大学 | Electromagnetic impact dynamic tensile test method and device |
| CN102944474A (en) * | 2012-11-29 | 2013-02-27 | 哈尔滨工业大学 | High-speed one-way tensile test device and method |
| CN103940541A (en) * | 2014-04-29 | 2014-07-23 | 上海卫星工程研究所 | Micro-separating-force measurement method based on high-speed photography |
| CN104089753A (en) * | 2014-07-08 | 2014-10-08 | 中国空气动力研究与发展中心低速空气动力研究所 | Tester used for measuring stress of flexible objects in low-speed wind tunnel and testing method thereof |
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| CN105675192A (en) | 2016-06-15 |
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