CN102507968A - Low-creep optical fiber disk for optical fiber accelerometer and manufacturing method thereof - Google Patents
Low-creep optical fiber disk for optical fiber accelerometer and manufacturing method thereof Download PDFInfo
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- CN102507968A CN102507968A CN2011103510500A CN201110351050A CN102507968A CN 102507968 A CN102507968 A CN 102507968A CN 2011103510500 A CN2011103510500 A CN 2011103510500A CN 201110351050 A CN201110351050 A CN 201110351050A CN 102507968 A CN102507968 A CN 102507968A
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- fiber reel
- colloid
- boss
- optical fiber
- organic solvent
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Abstract
The invention discloses a low-creep optical fiber disk for an optical fiber accelerometer and a manufacturing method thereof. Miniature lug bosses are formed on two surfaces of a crystal disk in a photoetching way to form a helical recess; a single layer of bare fibers is fixed in the recess; and symmetrically arranged first and second optical fiber disks are respectively formed on the two surfaces of the crystal disk. The manufacturing method comprises the steps of: utilizing the crystal disk as a support of flexible optical fiber disk, processing miniature lug bosses on the crystal disk in a micro-processing method to locate the optical fiber, controlling the glue dosage and guaranteeing uniformity by a spinning method, and preparing the low-creep optical fiber disk by bare fibers with removed coating layers. The low-creep optical fiber disk prepared by the invention generates no long time stress release and changes with the environment, so that the measurement of the acceleration is stable and reliable.
Description
Technical field
The present invention relates to the fiber reel that a kind of fibre optic accelerometer is used, especially relate to a kind of low creep fiber reel that is used for fibre optic accelerometer and preparation method thereof.
Technical background
Accelerometer is a kind of inertia sensing device of measuring acceleration, all has in a lot of fields extensively and important use.Adopt the phase modulation-type fibre optic accelerometer of cushion disk(-sc) structure, not only simple in structure, be easy to make, have advantages such as high precision, low cross response, high bandwidth simultaneously.
Along with the development of measurement, increasingly high to the index requests such as precision of accelerometer with inertial technology.Fiber phase type accelerometer has very big potentiality on precision, but it comes sensing based on flexible disk deformation to the stress of optical fiber, and there is suitable creep in metal or other resilient materials flexible disk of making usually, causes stress constantly slowly to change.Thereby this small STRESS VARIATION will produce the influence that continues to phase of light wave to be caused long term drift, the swinging of signal of measurement result even can't record desired data.Also have creep and glue amount inhomogeneous of fibre cladding to cause long-term stress relief and change, also make acceleration analysis unstable, unreliable with environment.
Summary of the invention
In order to solve the problem that exists in the background technology, the object of the present invention is to provide a kind of low creep fiber reel that is used for fibre optic accelerometer and preparation method thereof.Adopt the crystal dish to do the support of optical fiber flexible disk; On the crystal dish, produce miniature boss to fiber orientation through little manufacturing process; And with the method for whirl coating control glue consumption and guarantee homogeneity, and use the bare fibre of removing outer coat to reach the purpose of hanging down creep.
The technical scheme that the present invention adopts is:
One, a kind of low creep fiber reel that is used for fibre optic accelerometer:
Please both parties at the crystal dish and to be carved with miniature boss, between miniature boss, form screw type groove, with the fixing individual layer bare fibre of colloid, form first fiber reel and second fiber reel of symmetric arrangement respectively on crystal dish two sides in the groove.
The height of described miniature boss does
hMicron, the then width of miniature boss
wFor
Micron, wherein
Be the bare fibre diameter, unit is a micron, and the fiber reel internal diameter deducts
W/2The size of gained is as the position of initial miniature boss center line, and adjacent two miniature boss distance between center lines are
Micron.
Two, a kind of method for making that is used for the low creep fiber reel of fibre optic accelerometer, the step of this method is following:
1) the outer overlay of removing optical fiber obtains bare fibre;
2) one side at first baffle plate scribbles the colloid that is soluble in organic solvent; And the one side that scribbles the colloid that is soluble in organic solvent with first baffle plate is formed two locating surfaces around the bare fibre ring with the center by the second baffle of boss; Distance is determined by boss between two locating surfaces; With winder with bare fibre along the boss external diameter, the boss external diameter is that the fiber reel internal diameter is covered with between two locating surfaces with spiral individual layer, forms first fiber reel;
3) take off middle two locating surfaces that are embedded with first fiber reel from winder, being heating and curing is soluble in the colloid of organic solvent;
4) on crystal dish front surface, make miniature boss, in screw type groove, get rid of and be coated with the colloid that one deck is insoluble to organic solvent with the method for photoetching;
5) second baffle after will solidifying removes, and first baffle plate and the crystal dish that will have first fiber optic loop simultaneously fitted and solidified the colloid that is insoluble to organic solvent between the crystal dish and first fiber reel;
6) soak the colloid of removing on first baffle plate that is soluble in organic solvent with organic solvent-acetone, first fiber reel and first baffle plate are broken away from;
7) repeat above-mentioned 1), 2) step obtain second fiber reel, utilize its to repeat 3 again)-6) step must arrive the crystal dish that the two sides glues bare fibre.
The described colloid that is soluble in organic solvent is that acrylic ester or other are dissolved in the colloid of acetone; The described colloid that is insoluble to organic solvent is a ultra-violet curing glue.
The beneficial effect that the present invention has is:
The present invention will make the support of optical fiber flexible disk of crystal; On the crystal dish, produce miniature boss to fiber orientation through little manufacturing process; And with the method for whirl coating control glue consumption and guarantee homogeneity, and use the bare fibre preparation of removing outer coat to hang down the creep fiber reel.The low creep fiber reel of the present invention's preparation can not cause long-term stress relief and change with environment, makes acceleration analysis stable, reliable.
Description of drawings
Fig. 1 is a crystal dish front surface structural representation.
Fig. 2 is Fig. 1 crystal dish side centre section structural representation.
Fig. 3 is the first baffle surface structural representation.
Fig. 4 is two locating surface structures and a bare fibre position view when ring.
Fig. 5 is the crystal dish whirl coating synoptic diagram when just having splashed into colloid.
Fig. 6 is the interior colloid distribution schematic diagram of crystal dish groove behind the whirl coating.
Fig. 7 is the structural representation that bare fibre is fixed on whirl coating crystal dish.
Fig. 8 is fixed on crystal card synoptic diagram with the bare fibre dish.
Fig. 9 is that the lysing chamber of the outer coat of dissolving optical fiber cuts open figure.
Figure 10 is the lysing chamber side view.
Among the figure: 1, crystal dish, 2, bare fibre, 3, crystal dish one side, 4, crystal dish another side, 5, the fiber reel internal diameter, 6, the fiber reel external diameter; 7, optical fiber advances groove, 8, first baffle plate, 9, second baffle, 10, miniature boss, 11, lysing chamber; 12, first pulley, 13, the fixing first pulley baffle plate, 14, second pulley, 15, the fixing second pulley baffle plate, 16, first fiber reel; 17, second fiber reel, 18, drip sebific duct, 19, turntable, 20, be insoluble to the colloid of organic solvent, 21, boss.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is further described
As Fig. 1, Fig. 2, shown in; Please both parties at crystal dish 1 and to be carved with miniature boss 10, between miniature boss, form screw type groove, in the groove with the colloid 20 that is insoluble to organic solvent; Like the fixing individual layer bare fibre 2 of ultra-violet curing glue, the determining positions of miniature boss the position of bare fibre 2.Form first fiber reel 16 and second fiber reel 17 of symmetric arrangement respectively on crystal dish 1 two sides.As shown in Figure 7, be fixed with individual layer bare fibre 2 respectively with colloid in the screw type groove, left end is the fiber reel outer radius, does not have miniature boss 10, can bare fibre 2 freely be drawn.
If the diameter of bare fibre does
Micron, the height of miniature boss does
hMicron.Under rectangular coordinate system with the side
Journey
As bare fibre end face equation, according to reality, miniature boss height is less during photoetching, wherein
H ﹤ / 2Will
Y=hBe updated to equation, obtain
, can know that the width of groove does
, then can get the width of miniature boss
wFor
Micron, adjacent two miniature boss distance between center lines are
Micron.
The concrete production program of low creep fiber reel that is used for fibre optic accelerometer is following:
The outer overlay of removing optical fiber obtains bare fibre 2, and is as shown in Figure 9, optical fiber is put in the lysing chamber 11 (seeing patent ZL200910098016.X for details) that acetone soln is housed.Adorn first pulley 12 in lysing chamber inside, be fixed on the inside of lysing chamber 11 with the fixing first pulley baffle plate 13.The fixing second pulley baffle plate 15 of second pulley, 14 usefulness also is fixed on the inside of lysing chamber 11.Shown in figure 10, have a slit in the upper surface middle part of lysing chamber 11, be convenient to optical fiber is fixed on the pulley.The solvable outer overlay of optical fiber of taking off of acetone obtains bare fibre 2 like this.
As shown in Figure 4, boss 21 diameters between two locating surfaces are 10mm, highly are 125 μ m, and the two locating surface gaps that first baffle plate 8 and second baffle 9 are formed are the diameter of bare fibre 2 just.As shown in Figure 3; With the diameter of boss 21 as fiber reel internal diameter 5; Having a degree of depth to the edge of first baffle plate 8 with fiber reel internal diameter 5 tangent places is that the optical fiber of bare fibre diameter 125 μ m advances groove 7, is used to place the upstream end tail optical fiber, guarantees that bare fibre 2 can be covered with between two locating surfaces by individual layer.
Bare fibre length gauge is as required calculated the size of required winding zone, according to required precision, makes the required bare fibre length of fiber reel
L, unit is a rice, the length of bare fibre is the bare fibre length that is wrapped on the crystal dish 1 here, because of the bare fibre diameter is very little, spirality is approximately circular.If fiber reel internal diameter 5 does
d, unit is a millimeter.Bare fibre 2 centers are overlapped with fiber reel internal diameter 5, and then the bare fibre length of first lap is π
dMillimeter, the diameter of bare fibre 2 does
φ, then the second circle length does
(d+ φ) πMillimeter by that analogy, can be similar to by following formula according to the length of required bare fibre and make the number of turns that bare fibre twines
:
Wherein
expression fractions omitted part only keeps integer.Calculate
Numerical value generally is decimal, can be divided into integer
And fraction part
b:
The complete number of turns Q of coiling does
, when
bOutmost turns can't be around complete when non-vanishing.Consider certain surplus during design, crystal dish diameter is not more than
y, be expressed from the next:
y=
d+（
+2）
φ （4）
Length is leaned on winder control, the decimal after the number of turns during practical implementation
bIt or not emphasis.During as
; When promptly also less than one is enclosed; For fiber reel is nonsensical; Can not produce sensitivity, so this situation just no longer is described.
For example: establish the bare fibre length that needs winding
LBe 15m, the fiber reel internal diameter
dBe 10mm, the diameter of bare fibre 2
φBe 125 μ m, substitution formula (2) has:
Can obtain
;
is 208; Then maximum number of turns Q is 208, and getting fiber reel external diameter 6 by formula (4) is 36.25mm.Crystal dish diameter gets final product greater than 36.25mm, so can select 2 inches disks for use.Forming first baffle plate 8 of two locating surfaces and the diameter of second baffle 9 also gets final product greater than 36.25mm.
Spin coating one deck is soluble in the colloid of organic solvent on first baffle plate 8, forms the base plate that has viscosity.Is that the optical fiber of bare fibre diameter 125 μ m advances groove 7 and puts between the locating surface with the bare fibre 2 through pulley in the lysing chamber 11 along the degree of depth, along fiber reel internal diameter 5, is covered with whole fiber reel internal diameter 5 by certain orientation with winder; By certain orientation can be clockwise or counterclockwise; Form the inner ring of first fiber reel 16, twine continuously, terminally freely draw up to fiber reel external diameter 6; Be heating and curing the colloid that is soluble in organic solvent on first baffle plate 8 is like acrylic ester.There are two locating surfaces of first fiber reel 16 to take off the centre, remove the second baffle 9 that has boss from winder.
With the support of silicon chip as crystal dish 1.Utilizing the dry etch process of standard to process highly is the miniature boss 10 of 2 μ m.The size 125 μ m of used bare fibre 2 diameters can be calculated the width of miniature boss by formula (1)
wBe about 93.6 μ m, the distance between miniature boss is 125 μ m, and the center line of initial miniature boss is positioned at
The place is by preceding text
dBe 10mm.As shown in Figure 5; The crystal dish is set level on turntable 19,, drip the photosensitive colloid 20 that is insoluble to organic solvent through dripping sebific duct 18 in crystal disk center; Like ultra-violet curing glue; The method of similar resist coating is (5000rpm) rotating crystal panel surface at a high speed, makes the colloid that is insoluble to organic solvent be covered with the crystal dish uniformly, forms thin film as shown in Figure 6.As shown in Figure 8, crystal dish one surface 3 and first baffle plate 8 is fitted, solidify the colloid that is insoluble to organic solution between crystal dish and the bare fibre 2 with the method for illumination, like ultra-violet curing glue.Remove the colloid that is soluble in organic solvent on first baffle plate 8 with the organic solvent-acetone bubble,, bare fibre 2 is broken away from it, promptly form first fiber reel 16 like acrylic ester.Second fiber reel 17 is also made like above-mentioned scheme, at last the crystal dish 1 of formation symmetric arrangement first fiber reel 16 and second fiber reel 17 on crystal dish one side 3 and crystal dish another side 4.
Claims (4)
1. low creep fiber reel that is used for fibre optic accelerometer; It is characterized in that: please both parties at crystal dish (1) and be carved with miniature boss (10); Between miniature boss, form screw type groove; With the fixing individual layer bare fibre (2) of colloid, form first fiber reel (16) and second fiber reel (17) of symmetric arrangement respectively on crystal dish (1) two sides in the groove.
2. a kind of low creep fiber reel that is used for fibre optic accelerometer according to claim 1, it is characterized in that: the height of described miniature boss does
hMicron, the then width of miniature boss
wFor
Micron, wherein
Be the bare fibre diameter, unit is a micron, and the fiber reel internal diameter deducts
W/2The size of gained is as the position of initial miniature boss center line, and adjacent two miniature boss distance between center lines are
Micron.
3. by the described a kind of method for making that is used for the low creep fiber reel of fibre optic accelerometer of claim 1, it is characterized in that the step of this method is following:
1) the outer overlay of removing optical fiber obtains bare fibre (2);
2) one side at first baffle plate (8) scribbles the colloid that is soluble in organic solvent; And the one side that scribbles the colloid that is soluble in organic solvent with first baffle plate (8) has the second baffle (9) of boss (21) to form two locating surfaces around the bare fibre ring with the center; Distance is determined by boss (21) between two locating surfaces; With winder with bare fibre (2) along boss (21) external diameter; Boss (21) external diameter is that fiber reel internal diameter (5) is covered with between two locating surfaces with spiral individual layer, forms first fiber reel (16);
3) take off middle two locating surfaces that first fiber reel (16) is arranged from winder, being heating and curing is soluble in the colloid of organic solvent;
4) upward make miniature boss (10) at crystal dish front surface (3), in screw type groove, get rid of and be coated with the colloid that one deck is insoluble to organic solvent with the method for photoetching;
5) second baffle (9) after will solidifying removes, and first baffle plate (8) and the crystal dish one side (3) that will have first fiber reel (16) fitted and solidified the colloid that is insoluble to organic solvent between crystal dish (1) and the bare fibre (2);
6) soak the colloid of removing on first baffle plate (8) that is soluble in organic solvent with organic solvent-acetone, first fiber reel (16) and first baffle plate (8) are broken away from;
7) repeat above-mentioned 1), 2) step obtain second fiber reel (17), utilize its to repeat 3 again)-6) step must arrive the crystal dish (1) that the two sides glues bare fibre.
4. by the described a kind of method for making that is used for the low creep fiber reel of fibre optic accelerometer of claim 3, it is characterized in that: the described colloid that is soluble in organic solvent is an acrylic ester, and the described colloid that is insoluble to organic solvent is a ultra-violet curing glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110351050.0A CN102507968B (en) | 2011-11-09 | 2011-11-09 | Low-creep optical fiber disk for optical fiber accelerometer and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110351050.0A CN102507968B (en) | 2011-11-09 | 2011-11-09 | Low-creep optical fiber disk for optical fiber accelerometer and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN102507968A true CN102507968A (en) | 2012-06-20 |
| CN102507968B CN102507968B (en) | 2014-05-07 |
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|---|---|---|---|
| CN201110351050.0A Expired - Fee Related CN102507968B (en) | 2011-11-09 | 2011-11-09 | Low-creep optical fiber disk for optical fiber accelerometer and manufacturing method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300505A (en) * | 2015-10-14 | 2016-02-03 | 中国船舶重工集团公司第七一五研究所 | Wide-band high-sensitivity planar optical fiber vector hydrophone |
| CN109883461A (en) * | 2019-03-15 | 2019-06-14 | 哈尔滨工程大学 | A kind of producing device and method of multilayer fibers strain disk |
| CN107843963B (en) * | 2017-12-05 | 2023-11-28 | 无锡统力电工有限公司 | Lay frock of fixed optic fibre |
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| US20010055438A1 (en) * | 2000-01-27 | 2001-12-27 | Tweedy Michael J. | Fiber optic displacement sensor |
| JP2004246267A (en) * | 2003-02-17 | 2004-09-02 | Yamaha Corp | Optical component mount structure and its manufacturing method |
| CN2643296Y (en) * | 2003-08-07 | 2004-09-22 | 江苏法尔胜技术开发中心 | Optical Fiber vibration sensor |
| US20050016272A1 (en) * | 2003-05-13 | 2005-01-27 | Schlumberger Technology Corporation | Manufacturing method for high temperature fiber optic accelerometer |
| CN101782595A (en) * | 2010-02-02 | 2010-07-21 | 浙江大学 | Multiplexing fiber-optic inertial sensing unit capable of simultaneously measuring acceleration and palstance |
| CN102095891A (en) * | 2010-11-09 | 2011-06-15 | 浙江大学 | Optical fiber coil component insensitive to temperatures for acceleration sensor |
-
2011
- 2011-11-09 CN CN201110351050.0A patent/CN102507968B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20010055438A1 (en) * | 2000-01-27 | 2001-12-27 | Tweedy Michael J. | Fiber optic displacement sensor |
| JP2004246267A (en) * | 2003-02-17 | 2004-09-02 | Yamaha Corp | Optical component mount structure and its manufacturing method |
| US20050016272A1 (en) * | 2003-05-13 | 2005-01-27 | Schlumberger Technology Corporation | Manufacturing method for high temperature fiber optic accelerometer |
| CN2643296Y (en) * | 2003-08-07 | 2004-09-22 | 江苏法尔胜技术开发中心 | Optical Fiber vibration sensor |
| CN101782595A (en) * | 2010-02-02 | 2010-07-21 | 浙江大学 | Multiplexing fiber-optic inertial sensing unit capable of simultaneously measuring acceleration and palstance |
| CN102095891A (en) * | 2010-11-09 | 2011-06-15 | 浙江大学 | Optical fiber coil component insensitive to temperatures for acceleration sensor |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105300505A (en) * | 2015-10-14 | 2016-02-03 | 中国船舶重工集团公司第七一五研究所 | Wide-band high-sensitivity planar optical fiber vector hydrophone |
| CN107843963B (en) * | 2017-12-05 | 2023-11-28 | 无锡统力电工有限公司 | Lay frock of fixed optic fibre |
| CN109883461A (en) * | 2019-03-15 | 2019-06-14 | 哈尔滨工程大学 | A kind of producing device and method of multilayer fibers strain disk |
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|---|---|
| CN102507968B (en) | 2014-05-07 |
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Granted publication date: 20140507 Termination date: 20161109 |