CN103837498A - Near-infrared spectrum detection optical fiber connector set - Google Patents
Near-infrared spectrum detection optical fiber connector set Download PDFInfo
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- CN103837498A CN103837498A CN201410067337.4A CN201410067337A CN103837498A CN 103837498 A CN103837498 A CN 103837498A CN 201410067337 A CN201410067337 A CN 201410067337A CN 103837498 A CN103837498 A CN 103837498A
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 61
- 238000001514 detection method Methods 0.000 title claims abstract description 28
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- 239000000835 fiber Substances 0.000 claims description 26
- 230000003044 adaptive effect Effects 0.000 claims description 19
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Abstract
The invention discloses a near-infrared spectrum detection optical fiber connector set. The near-infrared spectrum detection optical fiber connector set comprises an optical fiber connector and a self-adaptive optical fiber connector clamping sleeve, wherein the optical fiber connector is provided with a corner with a certain angle; after penetrating into the optical fiber connector, an optical fiber is entirely bent for the angle; the outlet end of the optical fiber connector is in a large chamfered cone shape with certain radian; the self-adaptive optical fiber connector clamping sleeve sheathes the corner of the optical fiber connector and is used for wrapping the optical fiber connector when being fixed with a fixed point of a to-be-detected end so as to protect and package the optical fiber connector; a buffer spring is arranged at the bottom end of the self-adaptive optical fiber connector clamping sleeve to automatically adjust the extension length of the optical fiber connector out of the self-adaptive optical fiber connector clamping sleeve along with the change of external pressure. According to the near-infrared spectrum detection optical fiber connector set, the optical fiber can be conveniently placed to self-adapt to the shape change of the to-be-detected end, partial detection interference is overcome, and the near-infrared spectrum detection optical fiber connector set is applied to emergent light requirements of the optical fiber in spectrum detection equipment and stable connection of the to-be-detected end.
Description
Technical field
The present invention relates to a kind of near infrared spectrum detection fiber joint suit, this fibre-optical splice suit comprises the joint cutting ferrule part that has the shank of certain angle turning function and have adaptation function.
Background technology
In recent years, along with the development of near infrared light spectral imaging technology, the research of near infrared light spectrum imaging system has obtained larger progress, wherein more outstanding with the near infrared light spectrum imaging system of continuous-wave mode.Near-infrared Brain imaging technique (Near-infrared spectroscopy, NIRS) is a kind of Non-Invasive cortical functional motion detection means.Utilize the degree of absorption difference of cerebral tissue to two kinds of specific wavelength near infrared lights, realize measurement to brain blood oxygen degree, thereby can realize without wound, real-time, continuous monitoring.
Near-infrared Brain motion detection equipment often needs carrier wave light (near infrared light) to reach health each several part skin surface from equipment light source transmitting terminal, passing light function is completed by optical fiber undoubtedly, due to the specific (special) requirements of near infrared gear detection principle, optical fiber exit end luminous energy should be as far as possible little leak, and be connected as far as possible little appearance relative displacement in testing process with position to be detected is uncertain.
For These characteristics, inventor has investigated the joint of existing near infrared spectrum checkout equipment optical fiber, find that the structure aspects of existing joint own often adopts metal or plastics simply coated, optical fiber is reinforced and protected, thereby some design is considered the stability after optical fiber assembling and optical fiber carried out to the bending of certain angle; The general direct simple snap ring by joints of joint or bayonet socket design are stuck in the cohesive end of end stationary installation to be detected.
This type of fibre-optical splice generally has following shortcoming:
(1) though fibre-optical splice has played protective effect to light itself, not consider and offset the issuable hunt effect of optical fiber in use procedure, this effect has often reduced the degree of stability that is connected with end to be detected, and impact detects effect;
(2) be connected too machinery: fibre-optical splice sees through simple draw-in groove design and test end stationary installation in profile and is connected, often too machinery is firm not in this linking design, and the firm degree that simultaneously depends on test side stationary installation and skin contact guarantees the contact stabilization of optical fiber outgoing end face and skin;
(3) adaptive ability is poor: be applied to when different detection positions or different detections position produce miniature deformation and do not possess capacity of self-regulation, in the face of the introducing of error has no to tackle;
(4) poor anti jamming capability: the error of due to hair, the absorption of emergent light being introduced in the time detecting head is not considered in existing design, and this error is fatal often for brain blood oxygen motion detection equipment, even can make detection signal to no avail;
(5) serviceable life is low: because light joint itself will be born being connected with test side stationary installation of task, in use procedure, there is unavoidably mechanical wear, and too the assembly mode of machinery easily causes joint deformation in jiont treatment and unloading process, even damaged.
For the problems referred to above, consider application scenario in the urgent need to developing one, reduce as far as possible the joint suit that is applicable near infrared spectrum checkout equipment optical fiber of the detection error of bringing due to Assembly stability.
Summary of the invention
In order to address the above problem, the present invention proposes a kind of joint suit that is applicable to Near-infrared Brain light spectrum detecting apparatus optical fiber, and it comprises: fibre-optical splice and adaptive optic fiber joint cutting ferrule, wherein:
Described fibre-optical splice has the corner of certain angle, and after optical fiber penetrates described fibre-optical splice, entirety bends described angle;
The endpiece of described fibre-optical splice is the large chamfering taper of certain radian;
Described adaptive optic fiber joint cutting ferrule is enclosed within the corner of described fibre-optical splice, for wrap up described fibre-optical splice in fixing with end point of fixity to be detected, to protect and to encapsulate described fibre-optical splice;
The bottom of described adaptive optic fiber joint cutting ferrule is provided with buffer spring, the length of automatically adjusting fibre-optical splice and stretching out cutting ferrule with the variation along with external pressure.
The present invention, owing to taking above technical scheme, has the following advantages:
(1) overcome the impact of optical fiber gravity on contact stabilization: the corner structure of the certain angle of fibre-optical splice of the present invention can effectively shift optical fiber gravity for a change horizontal micro-displacement of fiber end face and skin, and be unlikely to whole joint run-off the straight, make fiber end face perk, produce light leakage phenomena;
(2) overcome optical fiber and swing the impact on contact stabilization: have benefited from the perfect cooperation of corner structure and the self-adaptation card cover device of certain angle, while in use reducing optical fiber swing, the issuable tilt of joint or swing, reduced the detection error that this effect is brought into;
(3) automatically separate hair: when fibre-optical splice of the present invention is used for head detection, can effectively automatically separate hair, personnel easy to use install, avoid the work of the manual separation hair that in the past must implement, and effectively overcome hair for the blocking of optical fiber emergent light, thereby reduced detection error;
(4) self-adaptation contact environment: because the design of self-adaptation cutting ferrule is introduced spring as buffering, effectively alleviate the requirement of adjusting the distance when different skin surface contacts with fibre-optical splice, and automatic attaching in the time that skin surface produces miniature deformation, in testing process, remain the degree of stability of contact, facilitate easy-to-use;
(5) be applicable to different test sides stationary installation: the selected self-adaptation cutting ferrule of the present invention can make and change according to different test side stationary installation matching requirements, and fibre-optical splice only needs to coordinate with cutting ferrule, under multiple applied environment, can select the cutting ferrule of different assembling profiles, adapt to wide;
(6) profile is exquisite succinct: fibre-optical splice suit terminal with compact integral structure exquisiteness of the present invention, be convenient to installing/dismounting;
(7) long service life: due to the defencive function of self-adaptation cutting ferrule to fibre-optical splice; the mechanical wear that fibre-optical splice itself in use produces is less; can not bear the external force that cargo handling process may bring simultaneously yet; long-time use or the application of force is excessive only need change cheap cutting ferrule while causing breakage and do not need again to change whole optical fiber, because fibre-optical splice often can not arbitrarily be changed after carrying out.
Accompanying drawing explanation
Fig. 1 is the one-piece construction schematic diagram of fibre-optical splice suit of the present invention;
Fig. 2 is the structural representation that fibre-optical splice 90 of the present invention is spent corner;
Fig. 3 is the structural representation of fibre-optical splice self-adaptation cutting ferrule of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with specific embodiment, and with reference to accompanying drawing, the present invention is described in more detail.
Fig. 1 is the one-piece construction schematic diagram of fibre-optical splice of the present invention suit, and when the helmet can be completed optical fiber and for example detected cerebration with end stationary installation to be detected by this fibre-optical splice suit time or detection other positions of health, band is connected.As shown in Figure 1, described fibre-optical splice suit comprises: fibre-optical splice 1 and adaptive optic fiber joint cutting ferrule 2, wherein:
Described fibre-optical splice has the corner of certain angle, optimum, described corner is 90 degree, when optical fiber penetrates the certain number of degrees (such as 90 degree) of entirety bending after described fibre-optical splice, fibre-optic package is entered to a profile exquisiteness, in joint firm in structure, the described fibre-optical splice design with certain angle corner considers that reducing the rear optical fiber of assembling swings being connected the impact of stability and the convenience of the installing/dismounting of fibre-optical splice own, therefore select the corner structure that can bend certain angle, this structure can not make optical fiber after assembling perpendicular to surface, test side, the weight of optical fiber itself just can not cause the inclination of joint generation specific direction like this, deviation detection end surfaces to a certain extent, but be to make to produce faint horizontal shift between test side and surface, test side by the force of gravity of optical fiber, that is to say can be by optical fiber corner under the prerequisite that does not affect optical fiber property, thereby being convenient to checkout equipment is equipped with optical fiber and end to be detected to install rear fiber placing intact, not because the rigidity effects output light of optical fiber itself is connected with the stable of position to be detected, easy to use,
The endpiece of described fibre-optical splice is the large chamfering taper of certain radian, the pencil that likeness in form is fined away, when making described fibre-optical splice for head detection, this design can effectively separate hair, do not make fiber end face be covered by hair but directly contact scalp, sixty-four dollar question when this point detects head often, this be because, first in jiont treatment process, experimenter generally needs manually hair separately to be exposed to scalp, this itself is exactly a loaded down with trivial details and consuming time process, the covering of next hair tends to absorb emergent light greatly and causes sensed light signal incident scalp well, introduce very large error, and fibre-optical splice of the present invention is by the simple large chamfering pyramidal structure this point that designed customer service well, in experimentation, experimenter carries out lift-off processing with regard to not needing to hair, cause is that this kind of structure can contact with scalp as direct separately hair as comb, also just reduced the bridging effect of hair to emergent light simultaneously, reduce to a great extent the possibility that error produces, kill two birds with one stone,
Described adaptive optic fiber joint cutting ferrule is enclosed within the corner of described fibre-optical splice, for wrap up described fibre-optical splice in fixing with end point of fixity to be detected, to protect and to encapsulate described fibre-optical splice;
The bottom of described adaptive optic fiber joint cutting ferrule is also provided with buffer spring, automatically the length of adjusting fibre-optical splice and stretching out cutting ferrule with the variation along with external pressure, so just can be by fibre-optical splice described in buffer spring control the tightness degree that contacts with end surfaces to be detected, overcome the end surfaces change of shape to be detected of bringing due to different body parts or due to reasons such as the own elasticity of skin, make optical fiber outgoing end face complete and contact with end surfaces to be detected closely, even if fibre-optical splice effectively cushions in assembling the perpendicular displacement that the deformation of surface of contact difformity brings afterwards, reach the object of self-adapting detecting environment, while is due to the convenience of this adaptive design, end surfaces to be detected needn't bear the pressure bringing due to simple and mechanical coupling, make testing process be more conducive to implement, guarantee the level of comfort of subject in testing process.That is to say, described self-adaptation joint card cover device assembles and makes fibre-optical splice adapt to different detection occasions by self-adaptation regulating spring from fibre-optical splice in connecting the fixing buckle of end to be detected, and minimizing detection body form changes the detection error of bringing.
Preferably, described fibre-optical splice can be selected metal or plastics according to application scenario, adapts to different detection demands to facilitate.
Preferably, the physical dimension of described fibre-optical splice can require to do corresponding adjustment according to different testing environments.
Preferably, described adaptive optic fiber joint cutting ferrule can carry out profile adjustment according to different test side stationary installations, and to adapt to different assembling forms, in addition, the material of described adaptive optic fiber joint cutting ferrule can be determined according to use occasion, in this no limit.
Fig. 2 is the structural representation that fibre-optical splice 90 of the present invention is spent corner, as shown in Figure 2, fibre-optical splice profile of the present invention is 90 degree corner design, it is made up of upper and lower two-stage cylinder, cylinder 3 external diameters in upper end are larger, enough spaces are left in inside, to guarantee that optical fiber bends the needed minimum bending radius of 90 degree while passing, optical fiber can not be ruptured, after described optical fiber penetrates, also can add epoxy resin or other immobilization materials, so that optical fiber is stablized and to be encapsulated in securely in joint well, the issuable vertical direction gap tilt effect of weight butt junction of optical fiber own can be converted into the displacement of horizontal direction like this, vertical bank tends to cause luminous energy to leak, and horizontal shift in the situation that surface of contact has certain pressure due to skin-friction force can be together with skin movement can't light leak, have benefited from this design simultaneously, when optical fiber in use swings, can not cause significantly vertical bank yet, thereby the least possible reduction luminous energy leak.
As shown in Figure 2; lower end cylinder 4 external diameters of fibre-optical splice of the present invention are less; and having adopted large radian conical design, this design, in effectively protecting internal optical fiber, is used for reference the profile of similar comb; can separate well hair; in assembling process, just do not need testing staff to separate in advance hair like this, and effectively isolate hair and fiber end face, make hair be down to minimum on the impact detecting; guarantee contacting of fiber end face and skin, thus the interference of the least possible introducing hair.
Fig. 3 is the structural representation of fibre-optical splice self-adaptation cutting ferrule of the present invention, as shown in Figure 3, adaptive optic fiber joint cutting ferrule of the present invention inside provides and can supply the up and down sufficient space of fibre-optical splice, and the fibre-optical splice of effectively fitting makes it not run-off the straight, the more important thing is, be positioned at the buffer spring of described adaptive optic fiber joint cutting ferrule bottom in the time that described fibre-optical splice is applied to different occasions, can effectively cushion surface of contact shape differs and changes the perpendicular displacement bringing, simultaneously, by means of this kind of structure, fibre-optical splice can be vertical movable within the specific limits, the pressure energy of buffer spring suitably regulates the pressure between optical fiber and skin contact, play buffer action, detected like this skin can not produce because pressure is excessive pain, and in whole testing process, guarantee not light leak of surface of contact, stability is strong, therefore, that one has considered testing staff's use, detected personnel's impression and system stability, the design of the various factorss such as antijamming capability.
As shown in Figure 3, corresponding change is made in the requirement that the external structure of adaptive optic fiber joint cutting ferrule of the present invention can fixedly be clasped according to difference end to be detected, only need carry out variation to a certain degree to profile, and do not change internal structure, thereby in having guaranteed the function of cutting ferrule own, expand application scenario; And its one-piece construction is simple, realize easily, with low cost, when effectively protecting fibre-optical splice, and can be convenient for changing in the time running into wearing and tearing and destroy, save use cost.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect are further described; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. a near infrared spectrum detection fiber joint suit, is characterized in that, this fibre-optical splice suit comprises: fibre-optical splice and adaptive optic fiber joint cutting ferrule, wherein:
Described fibre-optical splice has the corner of certain angle, and after optical fiber penetrates described fibre-optical splice, entirety bends described angle;
The endpiece of described fibre-optical splice is the large chamfering taper of certain radian;
Described adaptive optic fiber joint cutting ferrule is enclosed within the corner of described fibre-optical splice, for wrap up described fibre-optical splice in fixing with end point of fixity to be detected, to protect and to encapsulate described fibre-optical splice;
The bottom of described adaptive optic fiber joint cutting ferrule is provided with buffer spring, the length of automatically adjusting fibre-optical splice and stretching out cutting ferrule with the variation along with external pressure.
2. fibre-optical splice according to claim 1, is characterized in that, described corner is 90 degree.
3. fibre-optical splice according to claim 1, is characterized in that, described fibre-optical splice is selected metal or plastics.
4. fibre-optical splice according to claim 1, is characterized in that, the physical dimension of described fibre-optical splice can require to do corresponding adjustment according to different testing environments.
5. fibre-optical splice according to claim 1, is characterized in that, described adaptive optic fiber joint cutting ferrule can carry out profile adjustment according to different test side stationary installations.
6. fibre-optical splice according to claim 1, is characterized in that, described fibre-optical splice is made up of upper and lower two-stage cylinder, and upper end cylinder external diameter is larger, and enough spaces are left in inside, bends the needed minimum bending radius of certain angle when guaranteeing that optical fiber passes; Lower end cylinder external diameter is less, and is the large chamfering taper of certain radian.
7. fibre-optical splice according to claim 6, is characterized in that, described optical fiber penetrates after the upper end cylinder of described fibre-optical splice, in the space between optical fiber and cylinder, adds immobilization material, to be encapsulated in securely in joint stable optical fiber.
8. fibre-optical splice according to claim 7, is characterized in that, described immobilization material is epoxy resin.
9. fibre-optical splice according to claim 1, is characterized in that, described adaptive optic fiber joint cutting ferrule inside is provided with and can supplies the up and down sufficient space of fibre-optical splice.
10. fibre-optical splice according to claim 1, is characterized in that, corresponding change is made in the requirement that the external structure of described adaptive optic fiber joint cutting ferrule is fixedly clasped according to difference end to be detected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067337.4A CN103837498B (en) | 2014-02-26 | 2014-02-26 | A kind of near infrared spectrum detection fiber joint suit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410067337.4A CN103837498B (en) | 2014-02-26 | 2014-02-26 | A kind of near infrared spectrum detection fiber joint suit |
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| Publication Number | Publication Date |
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| CN103837498A true CN103837498A (en) | 2014-06-04 |
| CN103837498B CN103837498B (en) | 2016-08-17 |
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| CN201410067337.4A Active CN103837498B (en) | 2014-02-26 | 2014-02-26 | A kind of near infrared spectrum detection fiber joint suit |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223660A (en) * | 2015-11-04 | 2016-01-06 | 中国电子科技集团公司第八研究所 | A kind of straight curved formula joints of optical fibre |
| CN106556896A (en) * | 2016-12-11 | 2017-04-05 | 天津君邦科技有限公司 | Multifunctional optical fiber connector |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402839A (en) * | 1999-12-01 | 2003-03-12 | 3M创新有限公司 | Optical fiber connector systems |
| JP2008116602A (en) * | 2006-11-02 | 2008-05-22 | Sanwa Denki Kogyo Co Ltd | Fixed type right-angle bend connector |
| JP2008116601A (en) * | 2006-11-02 | 2008-05-22 | Sanwa Denki Kogyo Co Ltd | Hinge type right-angle bend connector |
| CN202472060U (en) * | 2012-03-28 | 2012-10-03 | 杭州精工技研有限公司 | Novel SC fiber connector |
| CN202472061U (en) * | 2012-03-28 | 2012-10-03 | 杭州精工技研有限公司 | Novel FC (Fiber Channel) fiber connector |
-
2014
- 2014-02-26 CN CN201410067337.4A patent/CN103837498B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1402839A (en) * | 1999-12-01 | 2003-03-12 | 3M创新有限公司 | Optical fiber connector systems |
| JP2008116602A (en) * | 2006-11-02 | 2008-05-22 | Sanwa Denki Kogyo Co Ltd | Fixed type right-angle bend connector |
| JP2008116601A (en) * | 2006-11-02 | 2008-05-22 | Sanwa Denki Kogyo Co Ltd | Hinge type right-angle bend connector |
| CN202472060U (en) * | 2012-03-28 | 2012-10-03 | 杭州精工技研有限公司 | Novel SC fiber connector |
| CN202472061U (en) * | 2012-03-28 | 2012-10-03 | 杭州精工技研有限公司 | Novel FC (Fiber Channel) fiber connector |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105223660A (en) * | 2015-11-04 | 2016-01-06 | 中国电子科技集团公司第八研究所 | A kind of straight curved formula joints of optical fibre |
| CN106556896A (en) * | 2016-12-11 | 2017-04-05 | 天津君邦科技有限公司 | Multifunctional optical fiber connector |
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| Publication number | Publication date |
|---|---|
| CN103837498B (en) | 2016-08-17 |
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