CN217542840U

CN217542840U - External light source of portable spectrometer

Info

Publication number: CN217542840U
Application number: CN202221464176.9U
Authority: CN
Inventors: 吴志春; 李斌; 楼法生; 郑翔; 周万蓬
Original assignee: East China Institute of Technology
Current assignee: East China Institute of Technology
Priority date: 2022-06-13
Filing date: 2022-06-13
Publication date: 2022-10-04
Anticipated expiration: 2032-06-13

Abstract

The utility model discloses an external light source of portable spectrum appearance, including the shell to and install in the inside fibre channel of shell, the outer lamp shade is installed to the tip of shell, and the interior lamp shade is installed to the inboard of outer lamp shade, and the lamp stand is installed to one side of interior lamp shade, and a plurality of quartz halogen lamps are installed to the lateral part of lamp stand, and the mid-mounting of lamp stand has the optic fibre port, and the optic fibre port links to each other with fibre channel. This scheme, owing to do not adopt the sunlight as the light source, avoided the undulant influence of sunlight, and owing to adopt the lamp shade, avoided optical fiber probe and ground thing contact, avoided optic fibre pollution, simultaneously owing to increased the antiskid groove at the casing, compare with direct handheld optic fibre, handheld casing of taking the antiskid groove is measured ground thing reflectance spectrum stability better, ensures measuring result's accuracy.

Description

External light source of portable spectrometer

Technical Field

The utility model relates to a spectrum appearance accessory technical field particularly, relates to an external light source of portable spectrum appearance.

Background

On the one hand, the measurement of the reflectance spectrum of the ground objects (rocks, vegetation, soil, etc.), usually with the sun as the light source. When a portable spectrometer is used for measuring the reflection spectrum of a ground object in the field, the reflection spectrum information acquired by the spectrometer is easily influenced by the illumination intensity of sunlight, the incident angle and the change of the external environment (humidity, wind speed, cloud cover and the like). On the other hand, the direct measurement of the handheld optical fiber is inconvenient, and meanwhile, in the measurement process, the optical fiber probe is easy to contact with the ground object to be polluted, so that the measurement result is inaccurate.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides an external light source of portable spectrum appearance to in improving the correlation technique, the light source provides inconveniently, and optic fibre pollutes easily, leads to the unsafe problem of measuring result.

In order to achieve the above object, the utility model provides an external light source of portable spectrum appearance, including the shell, and install in the inside fiber channel of shell, the outer lampshade is installed to the tip of shell, interior lamp shade is installed to the inboard of outer lampshade, the lamp stand is installed to one side of interior lamp shade, a plurality of quartz halogen lamps are installed to the lateral part of lamp stand, the mid-mounting of lamp stand has the optic fibre port, the optic fibre port with fiber channel links to each other.

In an embodiment of the present invention, the housing includes a first straight section, a flared section provided at the first straight section side portion, and a second straight section provided at the flared section side portion.

In an embodiment of the present invention, the outer circumference of the second straight section is provided with a first anti-slip groove, and the outer lampshade is disposed on the side of the second straight section.

In an embodiment of the present invention, a butt sleeve is installed on one side of the first straight section, and a third prevention sliding groove is disposed on the periphery of the butt sleeve.

In an embodiment of the present invention, the first straight section has a supporting frame, the supporting frame has a supporting ring, and the supporting ring is disposed on the outside of the optical fiber channel.

The utility model discloses an in one embodiment, the periphery of outer light cover is provided with second antiskid groove, outer light cover sets up to light tight lamp shade.

In an embodiment of the present invention, the inner lampshade is a hollow hemisphere, and the inner lampshade is a transparent lampshade.

In an embodiment of the present invention, a plurality of the quartz halogen lamps are arranged on the side of the lamp holder in an annular array, and the spectral range of the quartz halogen lamps is 0.3-3 μm.

Compared with the prior art, the beneficial effects of the utility model are that: through the external light source of the portable spectrum appearance of above-mentioned design, in use, through passing fiber channel with optic fibre, one end and the butt joint of fiber port, the other end of optic fibre links to each other with portable spectrum appearance, then handheld shell, and operation quartz halogen lamp, utilize the light source that quartz halogen lamp provided, shine ground object, receive the reverberation through fiber port, the reverberation is transmitted for outside spectrum appearance through optic fibre, can carry out the measurement of reflectance spectrum, because do not adopt the sunlight as the light source, the undulant influence of sunlight has been avoided, and owing to adopt the lamp shade, optical fiber probe and ground object contact have been avoided, and then optical fiber pollution has been avoided, the casing has anti-skidding groove simultaneously, compare with direct handheld optic fibre, it has better stability to hand the casing that has anti-skidding groove to carry out spectral measurement, ensure the accuracy of measuring result.

Drawings

Fig. 1 is a schematic structural diagram of an external light source of a portable spectrometer provided in accordance with an embodiment of the present invention;

fig. 2 is a schematic view of a first view angle of the structure of the inner lamp housing part of the external light source of the portable spectrometer provided by the embodiment of the present invention;

fig. 3 is a schematic view of a second view angle of the structure of the inner lamp housing part of the external light source of the portable spectrometer provided by the embodiment of the present invention;

fig. 4 is a schematic side view of an external light source of a portable spectrometer according to an embodiment of the present invention.

In the figure: 1. a housing; 11. a first straight section; 12. a flared section; 13. a second straight section; 14. a first anti-slip groove; 15. butting sleeves; 16. a third prevention sliding chute; 17. a support frame; 18. a support ring; 2. a fiber channel; 3. an outer lamp cover; 31. a second anti-slip groove; 4. an inner lampshade; 5. a lamp socket; 6. quartz halogen lamps; 7. a fiber port.

Detailed Description

In order to make the technical solution of the present invention better understood, the technical solution of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

In addition, the term "plurality" shall mean two as well as more than two.

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

The existing spectrometer generally adopts a solar light source, but has the following problems:

(1) When sunlight is used as a standard light source, the cloud can block the transmission of light, and the illumination intensity of the sunlight can change along with the change of the cloud amount, so that stable illumination conditions cannot be obtained.

(2) The solar altitude is different and the sunlight intensity is different at different times on different dates and the same day, and if the sunlight is used as a light source, the intensity of the reflection spectrum of the ground object received by the spectrograph is changed.

(3) The absorption and scattering of the spectrum by water in the air is greatly influenced, and the absorption rate is rapidly increased along with the increase of the wavelength in the range of 0.3-3 mu m. Meanwhile, the water content in the air changes with time, and the influence of the water vapor on the measurement result cannot be accurately eliminated.

When spectral analysis is carried out, if the optical fiber is directly held by hand, the optical fiber port must be vertically suspended above the object to be measured so as to ensure that the surface of the object is fully irradiated by sunlight and prevent the optical fiber lens from being polluted, so the optical fiber can not shake in a mode of keeping the stability of the hand of the user.

Example 1

Please refer to fig. 1-4, the utility model provides an external light source of portable spectrum appearance, including shell 1 to and install in the inside fibre channel 2 of shell 1, the outer lamp shade 3 is installed to the tip of shell 1, and interior lamp shade 4 is installed to the inboard of outer lamp shade 3, and lamp stand 5 is installed to one side of interior lamp shade 4, and a plurality of quartz halogen lamps 6 are installed to the lateral part of lamp stand 5, and the mid-mounting of lamp stand 5 has optic fibre port 7, and optic fibre port 7 links to each other with fibre channel 2.

Referring to fig. 1, 2 and 3, in the present embodiment, the outer shell 1 includes a first straight section 11, a flared section 12 disposed at a side of the first straight section 11, and a second straight section 13 disposed at a side of the flared section 12; because the holding position is different when the spectrum is measured, taken and used by individual, the first anti-skid groove 14 is arranged on the periphery of the second straight section 13, the outer lampshade 3 is arranged on the side part of the second straight section 13, and the second anti-skid groove 31 is arranged on the periphery of the outer lampshade 3; a docking sleeve 15 is mounted on one side of the first straight section 11, the docking sleeve 15 can be made of flexible materials such as rubber and silica gel and is convenient to dock with the portable spectrometer, and a third slide groove 16 is formed in the periphery of the docking sleeve 15; the friction force for holding the hand is increased by the first anti-slip groove 14 and the second anti-slip groove 31.

In this embodiment, the outer light cover 3 is made of black rubber, and has the function of isolating external light to prevent the external light from interfering with the internal light source.

In this embodiment, in order to support the optical fiber channel 2, a support frame 17 is installed inside the first straight section 11, and a support ring 18 is installed inside the support frame 17, the support ring 18 is sleeved outside the optical fiber channel 2, and the optical fiber channel 2 is supported by the support ring 18, so that the optical fiber channel 2 can be more stably fixed inside the housing 1.

Referring to fig. 1, 2 and 3, in order to make the light beam irradiate the ground object better, the inner lamp shade 4 is configured to be a hollow hemisphere type, which can condense the light; the inner lampshade 4 is a transparent lampshade made of transparent glass materials, and light can conveniently penetrate through the transparent lampshade.

Referring to fig. 2, 3 and 4, in order to better condense light and make light uniform, a plurality of quartz halogen lamps 6 are disposed on the side of the lamp holder 5 in an annular array, the spectrum range of the quartz halogen lamps 6 is 0.3-3 μm, and the spectrum within this range can achieve a good spectrum measurement effect, the types of the quartz halogen lamps 6 can be purchased according to requirements, and the power supply thereof is provided by the prior art, which is not described herein.

Specifically, the working principle of the external light source of the portable spectrometer is as follows: during the use, through passing optic fibre passageway 2, one end and optical fiber port butt joint, the other end of optic fibre links to each other with portable spectrum appearance, then handheld shell, and operation quartz halogen lamp 6, utilize the light source that quartz halogen lamp 6 provided, shine the ground object, receive the reverberation through optical fiber port 7, the reverberation transmits for outside spectrum appearance through optic fibre, can carry out the measurement of reflectance spectrum, because do not adopt the sunlight as the light source, the undulant influence of sunlight has been avoided, and owing to adopt lamp shade 3, optical fiber probe and ground object direct contact have been avoided, and then optical fiber pollution has been avoided, ensure the accuracy of measuring result. Meanwhile, due to the fact that the shell 1 is adopted, the first anti-slip groove 14, the third anti-slip groove 16 and the second anti-slip groove 31 are added, compared with a direct handheld optical fiber, the shell with the anti-slip grooves is handheld to conduct spectral measurement, and therefore stability is better, and accuracy of a measuring result is guaranteed. And through the device, under the prerequisite of being furnished with built-in quartz halogen lamp 6, outer lamp shade 3 and interior lamp shade 4, can directly cover the sampling on the testee surface with arbitrary angle with 3 open ends of outer lamp shade, reduce the requirement of hand by a wide margin, optic fibre stability can be showing and promote.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an external light source of portable spectrum appearance, its characterized in that, including shell (1), and install in the inside fibre channel (2) of shell (1), outer light cover (3) are installed to the tip of shell (1), interior lamp shade (4) are installed to the inboard of outer light cover (3), lamp stand (5) are installed to one side of interior lamp shade (4), a plurality of quartz halogen lamps (6) are installed to the lateral part of lamp stand (5), the mid-mounting of lamp stand (5) has fiber port (7), fiber port (7) with fibre channel (2) link to each other.

2. An external light source of a portable spectrometer as claimed in claim 1, wherein the housing (1) comprises a first straight section (11), a flared section (12) disposed at a side of the first straight section (11), and a second straight section (13) disposed at a side of the flared section (12).

3. An external light source of a portable spectrometer as claimed in claim 2, wherein the second straight section (13) is provided with a first anti-slip groove (14) at its periphery, and the outer lampshade (3) is provided at the side of the second straight section (13).

4. An external light source of a portable spectrometer as claimed in claim 2, wherein a docking sleeve (15) is installed at one side of the first straight section (11), and a third slide groove (16) is installed at the periphery of the docking sleeve (15).

5. The external light source of a portable spectrometer as claimed in claim 2, wherein a support frame (17) is installed inside the first straight section (11), a support ring (18) is installed inside the support frame (17), and the support ring (18) is sleeved outside the optical fiber channel (2).

6. An external light source of a portable spectrometer as claimed in claim 1 or 3, wherein the outer periphery of the outer light cover (3) is provided with a second anti-slip groove (31), and the outer light cover (3) is provided with a light-tight light cover.

7. An external light source of a portable spectrometer as claimed in claim 1, wherein the inner lampshade (4) is a hollow hemisphere, and the inner lampshade (4) is a transparent lampshade.

8. An external light source of a portable spectrometer as claimed in claim 1, wherein a plurality of said quartz halogen lamps (6) are arranged in a circular array at the side of said lamp base (5), said quartz halogen lamps (6) having a spectral range of 0.3-3 μm.