CN111157128A - Terahertz radiation detection device - Google Patents
Terahertz radiation detection device Download PDFInfo
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- CN111157128A CN111157128A CN202010150779.0A CN202010150779A CN111157128A CN 111157128 A CN111157128 A CN 111157128A CN 202010150779 A CN202010150779 A CN 202010150779A CN 111157128 A CN111157128 A CN 111157128A
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- 238000001514 detection method Methods 0.000 title claims abstract description 43
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J9/00—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength
- G01J9/02—Measuring optical phase difference; Determining degree of coherence; Measuring optical wavelength by interferometric methods
- G01J9/0246—Measuring optical wavelength
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Abstract
The invention discloses a terahertz radiation detection device which comprises a radiation source, a light guide pipe and a computer, wherein a light inlet pipe is communicated with the rear end of the right side of the light guide pipe and the left side of the radiation source, a parabolic mirror is fixedly connected with the rear end of the inner surface of the light guide pipe and the left side of the light inlet pipe, and a first light outlet pipe is communicated with the front end of the light guide pipe. The terahertz radiation detection device gathers and emits light to the terahertz spectroscope for light splitting through the matching of the light inlet tube and the parabolic mirror in the light guide tube, one light beam is guided to the wavelength detection module through the first light outlet tube, the wavelength of terahertz radiation can be detected, the other light beam is guided to the energy detection module through the second light outlet tube, the energy value of terahertz radiation can be detected, the two light beams are matched, two groups of data of terahertz radiation can be detected simultaneously, the efficiency is high, and terahertz radiation can be detected more comprehensively.
Description
Technical Field
The invention relates to the technical field of optical detection devices, in particular to a terahertz radiation detection device.
Background
Terahertz is a new radiation source with many unique advantages; the terahertz technology is a very important cross frontier field, and provides a very attractive opportunity for technical innovation, national economic development and national safety. The terahertz radiation is an electromagnetic radiation region with the frequency of 0.37THz to 10THz and the wavelength between millimeter waves and infrared rays in wireless waves, and the generated electromagnetic radiation has wide application prospects in the aspects of object imaging, medical diagnosis, environmental detection, communication and the like.
At present, more and more terahertz products are available in the market, but no device on the market can detect whether the energy radiated by the terahertz products belongs to the terahertz frequency range or not, or only one index can be detected, and the parameter index of a radiation source cannot be completely detected.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a terahertz radiation detection device, which solves the problem that no device on the market can detect whether the energy radiated by a terahertz product belongs to the terahertz frequency range or only detect one index, but cannot completely detect the parameter index of a radiation source.
In order to achieve the purpose, the invention is realized by the following technical scheme: the rear end of the right side of the light guide pipe and the left side of the radiation source are communicated with a light inlet pipe, the rear end of the inner surface of the light guide pipe and the left side of the light inlet pipe are fixedly connected with a parabolic mirror, the front end of the light guide pipe is communicated with a first light outlet pipe, the front end of the first light outlet pipe is provided with a wavelength detection module, the front end of the right side of the light guide pipe is communicated with a second light outlet pipe, the right end of the second light outlet pipe is communicated with an energy detection module, and the front end of the inner surface of the light guide pipe and the left side of the second light outlet pipe are fixedly connected with a terahertz spectroscope.
Preferably, the wavelength detection module comprises an interferometer, a first sleeve is communicated with the back surface of the interferometer, and the first sleeve is sleeved outside the first light outlet pipe.
Preferably, the right side of the interferometer is electrically connected with a receiver through a data line, and the right side of the receiver is electrically connected with a first amplifier through a data line.
Preferably, the energy detection module comprises a chopper, the left side of the chopper is communicated with the right end of the second light outlet pipe, the right side of the chopper is communicated with a filter box through a short pipe, and a filter is fixedly connected inside the filter box.
Preferably, the right side intercommunication of filtering box has the inner tube, and the outside cover of inner tube is equipped with the second sleeve pipe, the right-hand member fixedly connected with terahertz detector of second sleeve pipe, terahertz detector's front side has the second amplifier through data line electric connection.
Preferably, the bottom of the interferometer is fixedly connected with a first controller, the bottom of the terahertz detector is fixedly connected with a second controller, and a data serial port of the computer is electrically connected with the first amplifier and the second amplifier through data lines respectively.
Advantageous effects
The invention provides a terahertz radiation detection device. Compared with the prior art, the method has the following beneficial effects:
(1) the terahertz radiation detection device is characterized in that a light inlet pipe is communicated with the rear end of the right side of a light guide pipe and the left side of a radiation source, a parabolic mirror is fixedly connected with the rear end of the inner surface of the light guide pipe and the left side of the light inlet pipe, a first light outlet pipe is communicated with the front end of the light guide pipe, a wavelength detection module is arranged at the front end of the first light outlet pipe, a second light outlet pipe is communicated with the front end of the right side of the light guide pipe, an energy detection module is communicated with the right end of the second light outlet pipe, a terahertz spectroscope is fixedly connected with the front end of the inner surface of the light guide pipe and the left side of the second light outlet pipe, light is collected and emitted to the terahertz spectroscope to be split through the cooperation of the light inlet pipe and the parabolic mirror in the light guide pipe, one light beam is guided to the wavelength detection module by the first light outlet pipe, the wavelength of terahertz radiation, the terahertz radiation detection device can detect the energy value of terahertz radiation, can detect two groups of data of terahertz radiation simultaneously by matching the energy value and the data, has higher efficiency and can detect terahertz radiation more comprehensively.
(2) This terahertz radiation detection device, through the first controller of bottom fixedly connected with at the interferometer, and the bottom fixedly connected with second controller of terahertz detector, two controllers are linear motor, and the position of interferometer can be changed to first controller, and then measure corresponding THz wavelength data, and can change terahertz detector's position through the second controller to change the radiation angle, show the size of radiation angle through the computer, measurable quantity more experimental data.
Drawings
FIG. 1 is a top view of a structure of the present invention;
FIG. 2 is a cross-sectional view of a light pipe of the present invention;
fig. 3 is a partial enlarged view of the invention at a in fig. 1.
In the figure: 1-radiation source, 2-light guide pipe, 3-computer, 4-light inlet pipe, 5-parabolic mirror, 6-first light outlet pipe, 7-wavelength detection module, 71-interferometer, 72-receiver, 73-first amplifier, 74-first controller, 8-second light outlet pipe, 9-energy detection module, 91-chopper, 92-filter box, 93-filter, 94-terahertz detector, 95-second amplifier, 96-second controller, 10-terahertz spectroscope, 11-first sleeve, 12-short pipe, 13-inner pipe, 14-second sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a terahertz radiation detection device comprises a radiation source 1, a light guide tube 2 and a computer 3, wherein the radiation source 1 is not limited to a professional terahertz radiation source, the terahertz radiation source can be used as a detected object, all pipelines such as the light guide tube 2 and the like are used for shielding external light interference, the rear end of the right side of the light guide tube 2 and the left side of the radiation source 1 are communicated with a light inlet tube 4, the rear end of the inner surface of the light guide tube 2 and the left side of the light inlet tube 4 are fixedly connected with a parabolic mirror 5, the front end of the light guide tube 2 is communicated with a first light outlet tube 6, the front end of the first light outlet tube 6 is provided with a wavelength detection module 7, the wavelength detection module 7 comprises an interferometer 71, the interferometer 71 is a terahertz scanning Fabry-Perot interferometer and is used for measuring the wavelength of single-frequency terahertz radiation and calibrating the wavelength of narrow-band terahertz radiation, the back, the first sleeve 11 is sleeved outside the first light emitting tube 6, the first sleeve 11 and the first light emitting tube 6 can slide relative to each other, so that the movement of the interferometer 71 is not influenced, the right side of the interferometer 71 is electrically connected with the receiver 72 through a data line, the right side of the receiver 72 is electrically connected with the first amplifier 73 through a data line, the bottom of the interferometer 71 is fixedly connected with the first controller 74, the bottom of the terahertz detector 94 is fixedly connected with the second controller 96, both the controllers are linear motors, the position of the interferometer 71 can be changed by the first controller 74, corresponding THz wavelength data can be measured, the position of the terahertz detector 10 can be changed by the second controller 96, the radiation angle can be changed, the size of the radiation angle can be displayed through the computer 13, more experimental data can be measured, a data serial port of the computer 3 is respectively and electrically connected with the first amplifier 73 and the second amplifier 75 through data lines, the front end of the right side of the light guide pipe 2 is communicated with a second light emitting pipe 8, the right end of the second light emitting pipe 8 is communicated with an energy detection module 9, the energy detection module 9 comprises a chopper 91, a Gaolei box is used as a terahertz detector 94 for processing sine modulation signals, so that the chopper 8 is required to modulate incident light signals, the chopper 8 needs to be prepared in advance and opened, the left side of the chopper 91 is communicated with the right end of the second light emitting pipe 8, the right side of the chopper 91 is communicated with a filter box 92 through a short pipe 12, a filter 93 is fixedly connected inside the filter box 92, the right side of the filter box 92 is communicated with an inner pipe 13, a second sleeve 14 is sleeved outside the inner pipe 13, the second sleeve 14 and the inner pipe 13 can slide relative to each other so as not to influence the movement of the terahertz detector 94, the right end of the second sleeve 14 is fixedly connected with a terahertz detector 94, the front side of the terahertz detector 94 is electrically, the amplifier is a signal amplifier, the front end of the inner surface of the light guide pipe 2 is fixedly connected with the terahertz spectroscope 10 on the left side of the second light outlet pipe 8, light is collected and emitted to the terahertz spectroscope 10 for light splitting through the matching of the light inlet pipe 4 and the parabolic mirror 5 in the light guide pipe 2, one light is guided to the wavelength detection module 7 through the first light outlet pipe 6, the wavelength of terahertz radiation can be detected, the other light is guided to the energy detection module 9 through the second light outlet pipe 8, the energy value of terahertz radiation can be detected, the two groups of data of terahertz radiation can be detected simultaneously through the matching of the two groups of data, the efficiency is high, and terahertz radiation can be detected more comprehensively.
When the terahertz wave detector is used, light emitted by a radiation source 1 enters a light guide pipe 2 through a light inlet pipe 4, and is reflected by a parabolic mirror 5 and then irradiates a terahertz wave splitter 10, the terahertz wave splitter 10 divides the terahertz wave into two paths, one path of transmission light passes through a first light outlet pipe 6 and is incident to a wavelength detection module 7, an interferometer 71 measures the wavelength of single-frequency terahertz radiation and the wavelength of calibration narrow-band terahertz radiation, and then the signals are amplified by a first amplifier 73 and transmitted to a computer 3 to be processed by special software; the other path of transmitted light passes through the second light-emitting tube 8 and is incident to the energy detection module 9, the chopper 91 modulates the signal of the incident light into a sinusoidal signal, then the filter 93 removes the radiation of the rest frequency bands, the terahertz radiation entering the terahertz detector 94 is ensured, and after the terahertz detector 94 detects the detected signal, the detected data is amplified by the second amplifier 95 and is transmitted to the computer 3 to be processed by special software; if the radiation source 1 directly passes through the energy detection module 9, the position of the terahertz detector 94 is changed by the second controller 96, so that the radiation angle is changed, and the size of the radiation angle is displayed by the computer 3.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. A terahertz radiation detection device comprises a radiation source (1), a light guide (2) and a computer (3), and is characterized in that: the rear end on the right side of the light guide pipe (2) and the left side of the radiation source (1) are communicated with a light inlet pipe (4), the rear end on the inner surface of the light guide pipe (2) and the left side of the light inlet pipe (4) are fixedly connected with a parabolic mirror (5), the front end of the light guide pipe (2) is communicated with a first light outlet pipe (6), the front end of the first light outlet pipe (6) is provided with a wavelength detection module (7), the front end on the right side of the light guide pipe (2) is communicated with a second light outlet pipe (8), the right end of the second light outlet pipe (8) is communicated with an energy detection module (9), and the front end on the inner surface of the light guide pipe (2) and the left side of the second light outlet pipe (8) are fixedly connected with a terahertz spectroscope.
2. The terahertz radiation detection device of claim 1, wherein: the wavelength detection module (7) comprises an interferometer (71), the back surface of the interferometer (71) is communicated with a first sleeve (11), and the first sleeve (11) is sleeved outside the first light outlet pipe (6).
3. The terahertz radiation detection device of claim 2, wherein: the right side of the interferometer (71) is electrically connected with a receiver (72) through a data line, and the right side of the receiver (72) is electrically connected with a first amplifier (73) through a data line.
4. The terahertz radiation detection device of claim 2, wherein: the energy detection module (9) comprises a chopper (91), the left side of the chopper (91) is communicated with the right end of the second light outlet pipe (8), the right side of the chopper (91) is communicated with a filter box (92) through a short pipe (12), and the filter plate (93) is fixedly connected inside the filter box (92).
5. The terahertz radiation detection device of claim 4, wherein: the right side intercommunication of filtering box (92) has inner tube (13), and the outside cover of inner tube (13) is equipped with second sleeve pipe (14), the right-hand member fixedly connected with terahertz detector (94) of second sleeve pipe (14), the front side of terahertz detector (94) has second amplifier (95) through data line electric connection.
6. The terahertz radiation detection device of claim 5, wherein: the bottom of the interferometer (71) is fixedly connected with a first controller (74), the bottom of the terahertz detector (94) is fixedly connected with a second controller (96), and a data serial port of the computer (3) is electrically connected with the first amplifier (73) and the second amplifier (75) through data lines respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010150779.0A CN111157128A (en) | 2020-03-06 | 2020-03-06 | Terahertz radiation detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010150779.0A CN111157128A (en) | 2020-03-06 | 2020-03-06 | Terahertz radiation detection device |
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| CN111157128A true CN111157128A (en) | 2020-05-15 |
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| CN202010150779.0A Withdrawn CN111157128A (en) | 2020-03-06 | 2020-03-06 | Terahertz radiation detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777641A (en) * | 2022-04-22 | 2022-07-22 | 莱仪特太赫兹(天津)科技有限公司 | High-efficient terahertz radiation detection device |
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2020
- 2020-03-06 CN CN202010150779.0A patent/CN111157128A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114777641A (en) * | 2022-04-22 | 2022-07-22 | 莱仪特太赫兹(天津)科技有限公司 | High-efficient terahertz radiation detection device |
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Application publication date: 20200515 |
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