CN111982312A - Terahertz wavelength common-path interferometry measuring device - Google Patents
Terahertz wavelength common-path interferometry measuring device Download PDFInfo
- Publication number
- CN111982312A CN111982312A CN202010672979.2A CN202010672979A CN111982312A CN 111982312 A CN111982312 A CN 111982312A CN 202010672979 A CN202010672979 A CN 202010672979A CN 111982312 A CN111982312 A CN 111982312A
- Authority
- CN
- China
- Prior art keywords
- terahertz
- laser
- lens
- cleaning
- clamping plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000005305 interferometry Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000003287 optical effect Effects 0.000 claims abstract description 13
- 230000001681 protective effect Effects 0.000 claims abstract description 7
- 238000004140 cleaning Methods 0.000 claims description 43
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 18
- 230000007246 mechanism Effects 0.000 claims description 17
- 230000005540 biological transmission Effects 0.000 claims description 16
- 238000003825 pressing Methods 0.000 claims description 11
- 238000005259 measurement Methods 0.000 claims description 9
- 239000004579 marble Substances 0.000 claims description 5
- 230000008569 process Effects 0.000 abstract description 7
- 230000002265 prevention Effects 0.000 abstract description 5
- 238000012423 maintenance Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 12
- 239000004744 fabric Substances 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 230000036541 health Effects 0.000 description 2
- 238000003384 imaging method Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000002068 genetic effect Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000009659 non-destructive testing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Images
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to the technical field of optical metering, wherein a measuring device is provided with a Michelson interference method terahertz wavelength measuring optical system, the system is provided with a supporting platform, and a terahertz detector, a laser detector, a terahertz source, a laser, a 90-degree off-axis parabolic mirror, a diaphragm, a beam expander, a beam splitter and a reflector are sequentially arranged on the supporting platform; the laser emits reference laser and shares a light path with terahertz light emitted by the terahertz source, so that the relative movement distances of the to-be-detected terahertz light and the reference laser are the same, namely, the optical path difference required by solving the to-be-detected terahertz wavelength can be solved by using a reference interference system, and errors caused by movement instability of a mobile platform are eliminated. Through the setting of preventing falling the device, when the worker module accident was emptyd, toppled over the prevention of direction one side and fall the district and start, opened buffer fast and form the protection, the process is short, fast, and protective area is big, therefore, the protective effect is guaranteed, avoids damaging this type of precision equipment, and brings costly maintenance.
Description
Technical Field
The invention relates to the technical field of optical metering, in particular to a terahertz wavelength common-path interferometry measuring device.
Background
The unique performance of terahertz brings profound influences to the fields of communication (broadband communication), radar, electronic countermeasure, electromagnetic weapons, astronomy, medical imaging (unmarked genetic examination, imaging at the cellular level), nondestructive testing, safety inspection (biochemical inspection) and the like. The terahertz has high spatial resolution due to high frequency; and has a high temporal resolution due to its short pulses (on the order of picoseconds). Terahertz imaging technology and terahertz spectroscopy technology thus constitute two major key technologies for terahertz applications.
Because the precision of the terahertz wavelength measurement is mainly influenced by the optical path difference, reference laser is introduced for eliminating the influence brought by the mobile platform. A set of Michelson interference method terahertz wavelength measurement optical system is designed, as shown in figure 1. The method mainly comprises the following steps: the terahertz source, the laser, the 90-degree off-axis parabolic mirror, the diaphragm, the beam expander, the beam splitter, the reflector and the like. Among these components, the terahertz source and the laser are key components, and play a crucial role in the accuracy of measurement.
The terahertz source and the laser are both provided with working modules, the working modules are internally provided with lenses which are critical to light transmission, but in the practical situation, the lenses are generally exposed outside and easy to dust, although some lenses are provided with rubber protecting covers, the lenses are easy to touch due to carelessness in operation, the lenses are blurred, and when the lenses are dusted or blurred, the lenses are generally wiped by adopting silk cloth, but the effect is poor and the due cleaning degree cannot be achieved. The lens generally adopts glass material, belongs to fragile, if do not have better safeguard procedures, the maintenance cost is huge to precision instruments.
Disclosure of Invention
The invention aims to provide a terahertz wavelength common-path interferometry measuring device to solve the problems in the background technology.
The technical scheme of the invention is as follows: the terahertz wavelength common-path interferometry measuring device is provided with a Michelson interferometry terahertz wavelength measuring optical system, the system is provided with a supporting platform, and a terahertz detector, a laser detector, a terahertz source, a laser, a 90-degree off-axis parabolic mirror, a diaphragm, a beam expander, a beam splitter and a reflector are sequentially arranged on the supporting platform; the laser emits reference laser and shares a light path with terahertz light emitted by the terahertz source, so that the relative movement distances of the to-be-detected terahertz light and the reference laser are the same, namely, the optical path difference required by solving the to-be-detected terahertz wavelength can be solved by using a reference interference system, and errors caused by movement instability of a mobile platform are eliminated;
the terahertz source and the laser are both provided with working modules, and a lens protection device is additionally arranged on the outer side of a front-end lens of each working module; the lens protection device comprises a support framework, a protection component arranged at the front end of the support framework and a transmission mechanism connected to the support framework, wherein:
the supporting framework comprises a shell and a light guide tube positioned in the cavity of the shell, one end of the light guide tube is abutted against the periphery of a front-end lens of the working module, a conversion lens is additionally arranged at the other end of the light guide tube, and the shell is connected to the side part of the working module through a connecting member;
the protective component comprises a clamping plate, a first cleaning component arranged on the inner side wall of the clamping plate and a second cleaning component arranged opposite to the first cleaning component;
the transmission mechanism comprises a shifting fork, a pushing sleeve which is connected below the shifting fork in a shifting mode, a rotary drum which is in threaded connection with the pushing sleeve through transmission, and a pushing mechanism which is fixedly connected to the outer portion of the rotary drum, wherein the pushing mechanism comprises a rotary ring, a push rod one end of which is abutted against the rotary ring, and an inclined toothed plate which is connected to the other end of the push rod, and the inclined toothed plate is in meshing transmission with a rotary gear which is fixedly connected to the outer side of the rotary drum;
the rotary drum is rotatably connected with the light guide cylinder through a bearing; the clamping plate is three, is connected to the flange at the end part of the light guide tube in a sliding manner, is provided with a tooth groove on the inner wall and is in meshing transmission with the rotating gear through the tooth groove, when the rotating gear rotates towards one direction, the clamping plate is opened, and when the rotating gear rotates towards the other direction, the clamping plate is closed; the first cleaning assembly is consistent with the second cleaning assembly in structure, wherein the first cleaning assembly comprises an elastic pressing strip and a cleaning head arranged at the front end of the elastic pressing strip, the cleaning head is pressed and contacted at the front end of the conversion lens, and the cleaning head is detachably connected with the elastic pressing strip.
An anti-falling device is additionally arranged on the periphery of the upper ends of the terahertz source and the laser, and comprises a first anti-falling area and a second anti-falling area vertically communicated with the first anti-falling area; the anti-falling device is characterized in that a channel is formed in the first anti-falling area, a guide groove is formed in the bottom of the channel along the length direction, a rolling ball is arranged in the guide groove, a rocker is arranged in front of the rolling ball, a sliding barrel is arranged in front of the rocker and is slidably connected to the supporting plate and positioned through a marble mechanism, an ejection device is sleeved on the sliding barrel, a containing groove is formed in the outer end portion of the sliding barrel, and a buffer device is bound in the containing groove.
Arc-shaped grooves are formed in two sides of the rocker, and an elastic piece is arranged below the inner side end of the rocker in a cushioning mode.
The inner cavity of the sliding cylinder is provided with a piston rod, wherein the piston rod extends towards the rolling ball, and the end part of the piston rod is provided with a push plate.
The buffer device comprises a buffer bag and an elastic ring which is elastically supported inside the buffer bag.
Compared with the prior art, the terahertz wavelength common-path interferometry measurement device provided by the invention has the following improvements and advantages:
1. the original lens on the working module is sealed and protected by the lens protection device, and the lens protection device is provided with a conversion lens, the damage of the original lens caused by accidents can be prevented under the condition of not influencing the passing of rays, thereby avoiding the high-cost maintenance after the high-precision element is damaged, moreover, the conversion lens is provided with the clamping plate which can protect the conversion lens again, and has the functions of dust prevention, moisture prevention, falling prevention and the like, the ray guide tube has the function of guiding rays to ensure linear emission, have the safety protection effect to people crowd around, open the in-process at the block board, can utilize on the inner wall first clean subassembly and the clean subassembly of second will change spot such as dust on the camera lens and clear away, clean effect will be higher than the effect of wiping of paper handkerchief or cloth far away, is favorable to guaranteeing the degree of accuracy of light emission direction.
2. Through the setting of preventing falling the device, when the worker module accident was emptyd, toppled over the prevention of direction one side and fall the district and start, open buffer fast and form the protection, the process is short, fast, and the protective area is big, therefore, the protective effect is guaranteed, avoids damaging this kind of precision equipment of terahertz wavelength common light path interferometry measuring device, and brings costly maintenance.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a diagram of a Michelson interference terahertz wavelength measurement optical system of the present invention;
FIG. 2 is a perspective view of the present invention;
FIG. 3 is a perspective view of the lens guard of the present invention;
FIG. 4 is a cross-sectional view of a lens guard of the present invention;
FIG. 5 is a layout view of the fall arrest device of the present invention;
FIG. 6 is an enlarged view of a portion A of FIG. 5;
FIG. 7 is a cross-sectional view of the fall arrest device of the present invention;
FIG. 8 is a schematic view of the elastic ring of the present invention;
FIG. 9 is a schematic view of the engagement plate of the present invention in a closed state;
FIG. 10 is a schematic view illustrating an open state of the engaging plate according to the present invention;
Detailed Description
The present invention will be described in detail with reference to fig. 1 to 10, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.
The invention relates to a terahertz wavelength common-path interferometry measuring device which is provided with a Michelson interferometry terahertz wavelength measuring optical system and a supporting platform, wherein a terahertz detector, a laser detector, a terahertz source, a laser, a 90-degree off-axis parabolic mirror, a diaphragm, a beam expander, a beam splitter and a reflector are sequentially arranged on the supporting platform; the laser emits reference laser and shares a light path with terahertz light emitted by the terahertz source, so that the relative movement distances of the to-be-detected terahertz light and the reference laser are the same, namely, the optical path difference required by solving the to-be-detected terahertz wavelength can be solved by using a reference interference system;
the terahertz source and the laser are both provided with a working module 10, and a lens protection device 20 is additionally arranged on the outer side of a front-end lens of the working module 10; the lens protection device 20 includes a support structure 21, a protection component 22 disposed at a front end of the support structure 21, and a transmission mechanism 23 connected to the support structure 21, wherein:
the supporting structure 21 includes a housing 211 and a light guide tube 212 located in the inner cavity of the housing 211, one end of the light guide tube 212 abuts against the periphery of the front lens of the working module 10, the other end is further provided with a conversion lens 213, and the housing 211 is connected to the side of the working module 10 through a connecting member. One end of the light guide tube 212 abutting against the working module 10 is provided with a rubber gasket, so that the sealing degree is improved, and light leakage is avoided. The connecting component adopts movable connecting modes such as adhesive tape, buckle, hinge joint and the like;
the protective assembly 22 comprises a clamping plate 221, a first cleaning assembly 222 arranged on the inner side wall of the clamping plate 221, and a second cleaning assembly 223 arranged opposite to the first cleaning assembly 222;
the transmission mechanism 23 includes a shifting fork 231, a pushing sleeve 232 which is connected below the shifting fork 231 in a shifting manner, a rotating drum 233 which is in transmission threaded connection with the pushing sleeve 232, and a pushing mechanism 234 which is fixedly connected to the outside of the rotating drum 233, wherein the pushing mechanism 234 includes a rotating ring 2341, a push rod 2342 with one end abutting against the rotating ring 2341, and an inclined toothed plate 2343 which is connected to the other end of the push rod 2342, and the inclined toothed plate 2343 is in meshing transmission with a rotating gear 2344 which is fixedly connected to the outer side of the rotating drum 233. The shifting fork 231 is pulled to one side, so that the pushing sleeve 232 moves forwards, threads outside the rotary drum 233 are extruded through the threads inside the pushing sleeve 232, further, the rotary drum 233 rotates, the pushing rod 2342 moves forwards through the forward movement of the pushing sleeve 232, the rotating gear 2344 is driven to rotate through the inclined toothed plate 2343 at the front end of the pushing rod 2342, the rotating gear 2344 drives the clamping plate 221 to slide along the end flange of the light guide cylinder 212 in a guiding mode, further, the clamping plate 221 is opened, in the process of opening the clamping plate 221, the first cleaning component 222 and the second cleaning component 223 which are in pressure contact with the upper portion of the conversion lens 213 are driven to move, and further, the conversion lens 213 is cleaned, the cleaning effect is much better than that of wiping with cloth or paper, residues of cloth or paper scraps cannot be generated, and interference on the projection direction of light rays is avoided; when the endoscope head is polluted in the working process, the clearing operation can be carried out by pulling the shifting fork 231 under the condition of not closing the equipment, so that the working efficiency is improved, and the influence on the health of a human body due to the fact that the human body is exposed to rays by hand wiping treatment is avoided; the opening range of the engaging plate 221 is enough to clean the conversion lens 213, and the opened engaging plate 211 can protect the conversion lens 213 and prevent the lens from being damaged when a rollover accident occurs.
Wherein the rotating drum 233 is rotatably connected with the light guide 212 through a bearing; the three clamping plates 221 are connected to the flange at the end of the light guide tube 212 in a sliding manner, a tooth groove is formed in the inner wall of each clamping plate 221 and is in meshed transmission with the rotary gear 2344 through the tooth groove, when the rotary gear 2344 rotates in one direction, the clamping plates 221 are opened, and when the rotary gear 2344 rotates in the other direction, the clamping plates 221 are closed; the first cleaning assembly 222 and the second cleaning assembly 223 have the same structure, wherein the first cleaning assembly includes an elastic pressing strip and a cleaning head disposed at the front end of the elastic pressing strip, the cleaning head is pressed against the front end of the conversion lens 213, and the cleaning head is detachably connected to the elastic pressing strip. The cleaning head of the first cleaning assembly 222 is biased to one side by the vertex of the conversion lens 213, and the cleaning head of the second cleaning assembly 223 is positioned at the adjacent outer side of the first cleaning assembly 222, so that double cleaning is realized, and the cleaning effect is ensured. The cleaning head adopts a rubber conical head, a containing cavity is arranged in the rubber conical head, and cleaning liquid can be placed in the cavity and is led to the end part of the rubber conical head through a guide hole.
An anti-falling device 30 is additionally arranged on the periphery of the upper ends of the terahertz source and the laser, and the anti-falling device 30 comprises a first anti-falling area 31 and a second anti-falling area 32 vertically communicated with the first anti-falling area 31; the first anti-falling area 31 is provided with a channel, the bottom of the channel is provided with a guide groove along the length direction, a rolling ball 311 is arranged in the guide groove, a rocker 312 is arranged in front of the rolling ball 311, a sliding barrel 313 is arranged in front of the rocker 312, the sliding barrel 313 is connected to a supporting plate 314 in a sliding manner and is positioned through a marble mechanism 315, an ejection device 316 is sleeved on the sliding barrel 313, the outer end part of the sliding barrel 313 is provided with a containing groove, and a buffer device 317 is bound in the containing groove. When the working module 10 falls, the guide groove inclines, the upper rolling ball 311 rolls towards the upper part of the rocker 312, the rocker 312 is utilized to form an accelerating effect, the pushing plate rushes to the end part of the piston rod 3131, the piston rod 3131 pushes the sliding cylinder 313 to break away the restraint of the marble mechanism 315, meanwhile, the power of the ejection device 316 is released, the sliding cylinder 313 is pushed out quickly, so that the buffer device 317 is ejected quickly, the buffer bag of the buffer device 317 is opened quickly by the elastic ring 3171 inside to form a buffer air bag, the buffer air bag is communicated with the inner cavity of the sliding cylinder 313, the air is filled into the buffer air bag by utilizing the downward pressing of the piston rod 3131, the air pressure inside the buffer air bag is improved, and the buffer effect is improved.
Arc-shaped grooves 3121 are formed on both sides of the rocker 312, and an elastic member is padded below the inner side end of the rocker 312. The arc-shaped groove 3121 on the right side of the rocker 312 can prevent the rolling ball 311 from shaking, ensuring that the rolling ball 311 can pass over the rocker 312 only when the work module 10 is tilted; the arc-shaped groove 3121 on the left side of the rocker 312 increases the inclination of the rocker 312, which is beneficial to increasing the instantaneous acceleration of the rolling ball 311, and thus, the rolling ball 311 is forced to fall rapidly.
A piston rod 3131 is disposed in the inner cavity of the sliding cylinder 313, wherein the piston rod 3131 extends toward the rolling ball 311, and a push plate is disposed at an end of the piston rod 3131. When the rolling ball 311 falls, the rolling ball is directly hit on the push plate, so that the outermost point of the rolling ball 311 can be quickly abutted on the push plate, and the pushing effect is ensured.
The buffer device 317 comprises a buffer bag and an elastic ring 3171 which is elastically supported inside the buffer bag, when the working module 10 is normally placed, the diameter of the elastic ring 3171 is reduced, then the buffer device 317 is integrally placed in the channel, and the buffer device 317 is prevented from sliding under the elastic action of the elastic ring 3171.
The working principle is as follows:
in the using process, the shifting fork 231 is pulled to one side, so that the pushing sleeve 232 moves forwards, the threads on the outer part of the rotary drum 233 are extruded through the threads in the pushing sleeve 232, the rotary drum 233 rotates, the pushing rod 2342 moves forwards through the forward movement of the pushing sleeve 232, the rotary gear 2344 is driven to rotate through the inclined toothed plate 2343 at the front end of the pushing rod 2342, the rotary gear 2344 pulls the clamping plate 221 to slide along the end flange of the light guide drum 212 in a guiding manner, and therefore the clamping plate 221 is opened, in the opening process of the clamping plate 221, the first cleaning component 222 and the second cleaning component 223 which are in press contact with the upper part of the conversion lens 213 are driven to move, and therefore the conversion lens 213 is cleaned, the cleaning effect is better than that of wiping with cloth or paper, no cloth or paper debris is generated, and interference on the projection direction of light is avoided; when the endoscope head is polluted in the working process, the clearing operation can be carried out by pulling the shifting fork 231 under the condition of not closing the equipment, so that the working efficiency is improved, and the influence on the health of a human body due to the fact that the human body is exposed to rays by hand wiping treatment is avoided; the opening range of the engaging plate 221 is enough to clean the conversion lens 213, and the opened engaging plate 211 can protect the conversion lens 213 and prevent the lens from being damaged when a rollover accident occurs. When the working module 10 falls, the guide groove inclines, the upper rolling ball 311 rolls towards the upper part of the rocker 312, the rocker 312 is utilized to form an accelerating effect, the pushing plate rushes to the end part of the piston rod 3131, the piston rod 3131 pushes the sliding cylinder 313 to break away the restraint of the marble mechanism 315, meanwhile, the power of the ejection device 316 is released, the sliding cylinder 313 is pushed out quickly, so that the buffer device 317 is ejected quickly, the buffer bag of the buffer device 317 is opened quickly by the elastic ring 3171 inside to form a buffer air bag, the buffer air bag is communicated with the inner cavity of the sliding cylinder 313, the air is filled into the buffer air bag by utilizing the downward pressing of the piston rod 3131, the air pressure inside the buffer air bag is improved, and the buffer effect is improved.
Other parts of the present invention are not described in detail in the prior art.
Claims (5)
1. Terahertz wavelength common path interferometry measuring device which characterized in that: the measuring device is provided with a Michelson interference method terahertz wavelength measuring optical system, the system is provided with a supporting platform, and a terahertz detector, a laser detector, a terahertz source, a laser, a 90-degree off-axis parabolic mirror, a diaphragm, a beam expander, a beam splitter and a reflector are sequentially arranged on the supporting platform; the laser emits reference laser and shares a light path with terahertz light emitted by the terahertz source, so that the relative movement distances of the to-be-detected terahertz light and the reference laser are the same, namely, the optical path difference required by solving the to-be-detected terahertz wavelength can be solved by using a reference interference system, and errors caused by movement instability of a mobile platform are eliminated;
the terahertz source and the laser are both provided with a working module (10), and a lens protection device (20) is additionally arranged on the outer side of a front-end lens of the working module (10); the lens protection device (20) comprises a support framework (21), a protection component (22) arranged at the front end of the support framework (21) and a transmission mechanism (23) connected to the support framework (21), wherein:
the supporting framework (21) comprises a shell (211) and a light guide tube (212) positioned in the inner cavity of the shell (211), one end of the light guide tube (212) is abutted to the periphery of a front-end lens of the working module (10), a conversion lens (213) is additionally arranged at the other end of the light guide tube, and the shell (211) is connected to the side part of the working module (10) through a connecting member;
the protective component (22) comprises a clamping plate (221), a first cleaning component (222) arranged on the inner side wall of the clamping plate (221), and a second cleaning component (223) arranged opposite to the first cleaning component (222);
the transmission mechanism (23) comprises a shifting fork (231), a pushing sleeve (232) which is connected below the shifting fork (231) in a shifting mode, a rotating cylinder (233) which is in transmission threaded connection with the pushing sleeve (232), and a pushing mechanism (234) which is fixedly connected to the outer portion of the rotating cylinder (233), wherein the pushing mechanism (234) comprises a rotating ring (2341), a push rod (2342) of which one end is abutted to the rotating ring (2341), and an inclined toothed plate (2343) which is connected to the other end of the push rod (2342), and the inclined toothed plate (2343) is in meshing transmission with a rotating gear (2344) which is fixedly connected to the outer side of the rotating cylinder (233);
wherein the rotating drum (233) is rotatably connected with the light guide drum (212) through a bearing; the clamping plate (221) is three, and is connected to a flange at the end part of the light guide tube (212) in a sliding manner, a tooth groove is formed in the inner wall of the clamping plate (221) and is in meshed transmission with the rotary gear (2344) through the tooth groove, when the rotary gear (2344) rotates in one direction, the clamping plate (221) is opened, and when the rotary gear (2344) rotates in the other direction, the clamping plate (221) is closed; the first cleaning assembly (222) and the second cleaning assembly (223) are consistent in structure, wherein the first cleaning assembly comprises an elastic pressing strip and a cleaning head arranged at the front end of the elastic pressing strip, the cleaning head is pressed and contacted at the front end of the conversion lens (213), and the cleaning head is detachably connected with the elastic pressing strip.
2. The terahertz wavelength common-path interferometry measurement device of claim 1, wherein: an anti-falling device (30) is additionally arranged on the periphery of the upper ends of the terahertz source and the laser, and the anti-falling device (30) comprises a first anti-falling area (31) and a second anti-falling area (32) vertically communicated with the first anti-falling area (31); the anti-falling device is characterized in that a channel is formed in the first anti-falling area (31), a guide groove is formed in the bottom of the channel along the length direction, a rolling ball (311) is arranged in the guide groove, a warping plate (312) is arranged in front of the rolling ball (311), a sliding barrel (313) is arranged in front of the warping plate (312), the sliding barrel (313) is connected to a supporting plate (314) in a sliding mode and located through a marble mechanism (315), an ejection device (316) is sleeved on the sliding barrel (313), an accommodating groove is formed in the outer end portion of the sliding barrel (313), and a buffer device (317) is bound in the accommodating groove.
3. The terahertz wavelength common-path interferometry measurement device of claim 2, wherein: arc-shaped grooves (3121) have all been seted up to wane (312) both sides, and the pad is equipped with the elastic component in the below of wane (312) medial extremity.
4. The terahertz wavelength common-path interferometry measurement device according to claim 2, wherein a piston rod (3131) is disposed in an inner cavity of the sliding cylinder (313), wherein the piston rod (3131) extends towards the rolling ball (311), and a push plate is disposed at an end of the piston rod (3131).
5. The terahertz wavelength common-path interferometry measurement device according to claim 2, wherein the buffer device (317) comprises a buffer bag and an elastic ring (3171) elastically supported inside the buffer bag.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010672979.2A CN111982312B (en) | 2020-07-14 | 2020-07-14 | Terahertz wavelength common-path interferometry measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010672979.2A CN111982312B (en) | 2020-07-14 | 2020-07-14 | Terahertz wavelength common-path interferometry measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111982312A true CN111982312A (en) | 2020-11-24 |
| CN111982312B CN111982312B (en) | 2021-08-10 |
Family
ID=73437814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010672979.2A Active CN111982312B (en) | 2020-07-14 | 2020-07-14 | Terahertz wavelength common-path interferometry measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111982312B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5239552A (en) * | 1991-04-01 | 1993-08-24 | Miyachi Technos Corporation | Laser output unit |
| CN2554660Y (en) * | 2002-03-12 | 2003-06-04 | 明基电通股份有限公司 | Protection structure of built-in lens set |
| CN107765389A (en) * | 2017-11-29 | 2018-03-06 | 中山市小榄企业服务有限公司 | A kind of optical lens protection device |
| CN207712013U (en) * | 2017-12-29 | 2018-08-10 | 中山明智源光电科技有限公司 | A kind of camera lens cleaning protection mechanism and the camera lens containing this structure |
-
2020
- 2020-07-14 CN CN202010672979.2A patent/CN111982312B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5239552A (en) * | 1991-04-01 | 1993-08-24 | Miyachi Technos Corporation | Laser output unit |
| CN2554660Y (en) * | 2002-03-12 | 2003-06-04 | 明基电通股份有限公司 | Protection structure of built-in lens set |
| CN107765389A (en) * | 2017-11-29 | 2018-03-06 | 中山市小榄企业服务有限公司 | A kind of optical lens protection device |
| CN207712013U (en) * | 2017-12-29 | 2018-08-10 | 中山明智源光电科技有限公司 | A kind of camera lens cleaning protection mechanism and the camera lens containing this structure |
Non-Patent Citations (1)
| Title |
|---|
| 王小怀 等: ""迈克尔逊干涉仪测波长的一种便捷方法"", 《大学物理实验》 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN111982312B (en) | 2021-08-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO1993013395A3 (en) | Path constrained spectrophotometer | |
| JP2006510015A5 (en) | ||
| CA2365866A1 (en) | Passive remote sensor of chemicals | |
| CA2768102C (en) | Device for observing the inside of a hot cell, hot cell provided with said device, and method for maintaining said device | |
| US20200225114A1 (en) | Light leakage detection in edge sealants of optical devices | |
| CN111982312B (en) | Terahertz wavelength common-path interferometry measuring device | |
| CA2626429A1 (en) | Laser radiation source | |
| CN110333193B (en) | MEMS type static closed loop spectral imaging system | |
| US6624424B2 (en) | VUV laser beam characterization system | |
| CN114441501A (en) | Raman spectrum detection system and method based on Internet of things | |
| US7598978B2 (en) | Imaging apparatus | |
| JP6145719B2 (en) | Laser processing apparatus and laser processing method | |
| EP0890852A3 (en) | A shielded welding device for optical fibers | |
| JP2021030271A (en) | Fixed material removal device | |
| CN109998481B (en) | Weak light detection device based on photomultiplier | |
| CN112692455A (en) | Protection module for laser welding device | |
| CN116660187A (en) | Gas detector and debugging device | |
| JP2022525154A (en) | Tool measuring device for machine tools | |
| CN212483926U (en) | Broadband light source device for testing photoelectric detector | |
| JP5688436B2 (en) | Optical detector inspired device and optical detector equipped with the triggered device | |
| CN115014523A (en) | Diffuse reflection folding type dynamic laboratory radiation calibration device for simulating on-orbit environment | |
| WO2019055324A1 (en) | Video measuring system with dual-acting reticle projector for focusing and alignment | |
| CN115299885A (en) | Bimodal optical coherence tomography endoscopic probe | |
| JP2016196029A (en) | Laser processing head | |
| JP2021066769A (en) | Kiln core detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |