TWI485404B - Range finder and anemometer thereof - Google Patents
Range finder and anemometer thereof Download PDFInfo
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- TWI485404B TWI485404B TW103110832A TW103110832A TWI485404B TW I485404 B TWI485404 B TW I485404B TW 103110832 A TW103110832 A TW 103110832A TW 103110832 A TW103110832 A TW 103110832A TW I485404 B TWI485404 B TW I485404B
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Description
本發明係有關於一種測距儀及其風速計。The invention relates to a range finder and an anemometer thereof.
一般測距儀大都只具備測距功能，藉由對被測物發出一雷射光訊號，此雷射光訊號再由被測物表面反射回到測距儀，測距儀內部的光接收器接收到此反射雷射光訊號後，即可利用雷射光訊號往返被測物所需時間換算出被測物距離。有些戶外活動(例如高爾夫球運動或打獵)除了測距需求外，往往還需了解當時的風速或風向，但是一般測距儀無法同時提供測距及測風速功能，以致於對同時有測距及測風速功能需求者不甚方便。Most of the general range finder only has the ranging function. By emitting a laser light signal to the measured object, the laser light signal is reflected back to the range finder by the surface of the object to be measured, and the light receiver inside the range finder receives the light. After the reflected laser signal is reflected, the distance of the measured object can be converted by using the time required for the laser light to travel to and from the object to be measured. Some outdoor activities (such as golf or hunting) often need to know the wind speed or direction at the time, in addition to the distance measurement requirements, but the general range finder cannot provide the distance measurement and the wind speed function at the same time, so that there are both distance measurement and It is not convenient to measure the wind speed function.
有鑑於此，本發明之主要目的在於提供一種測距儀，除了測距功能外還具備測風速功能，讓使用者(例如打高爾夫球者或獵人)，除了知道目標物之距離外，還可依據目標物附近之風速大小做出一些動作修正，以消除環境風力的影響，可提升高爾夫球運動或打獵之命中率。In view of this, the main object of the present invention is to provide a range finder that has a wind speed measuring function in addition to the ranging function, so that a user (such as a golfer or a hunter) can not only know the distance of the target but also the distance of the target. Some motion corrections are made according to the speed of the wind near the target to eliminate the influence of the ambient wind, which can improve the hit rate of golf or hunting.
本發明之風速計包括一第一雷射光源、一單模保偏光纖耦合器、二光纖準直器、一物鏡及一光接收器。第一雷射光源發出一測速雷射光束。單模保偏光纖耦合器包括一耦合器本體、一輸入端光纖及二輸出端光纖，耦合器本體之兩端分別與輸入端光纖、兩輸出端光纖連接，輸入端光纖與第一雷射光源連接，使測速雷射光束輸入單模保偏光纖耦合器後，分成一第一測速雷射光束及一第二測速雷射光束分別由兩輸出端光纖 輸出。兩光纖準直器分別與兩輸出端光纖連接，使第一測速雷射光束及第二測速雷射光束通過兩光纖準直器後變為準直光束，且由兩光纖準直器輸出的第一測速雷射光束及第二測速雷射光束於遠方一交會處交會。物鏡設置於兩光纖準直器之間，此物鏡匯聚由第一測速雷射光束及第二測速雷射光束於交會處所散射出之一連續光脈衝。光接收器設置於物鏡之一側，用以接收物鏡所匯聚的連續光脈衝。The anemometer of the present invention comprises a first laser source, a single mode polarization maintaining fiber coupler, a two fiber collimator, an objective lens and an optical receiver. The first laser source emits a velocity laser beam. The single-mode polarization-maintaining fiber coupler comprises a coupler body, an input fiber and a two-output fiber. The two ends of the coupler body are respectively connected with the input fiber, the two output fibers, the input fiber and the first laser source. Connecting, the speed laser beam is input into the single mode polarization maintaining fiber coupler, and then divided into a first speed laser beam and a second speed laser beam respectively. Output. The two fiber collimators are respectively connected to the two output fibers, so that the first speed laser beam and the second speed laser beam pass through the two fiber collimators and become a collimated beam, and the output is output by the two fiber collimators. A speed laser beam and a second speed laser beam meet at a distant intersection. The objective lens is disposed between the two fiber collimators, and the objective lens converges a continuous light pulse scattered by the first speed laser beam and the second speed laser beam at the intersection. The light receiver is disposed on one side of the objective lens for receiving continuous light pulses concentrated by the objective lens.
其中測速雷射光束之波長為1310nm或1550nm。The wavelength of the speed measuring laser beam is 1310 nm or 1550 nm.
其中單模保偏光纖耦合器之分光比大約為50比50。The split ratio of the single mode polarization maintaining fiber coupler is approximately 50 to 50.
其中光接收器為一崩潰光二極體(APD)。The optical receiver is a crash light diode (APD).
本發明之風速計可更包括一透鏡設置於物鏡之一側，使第一測速雷射光束及第二測速雷射光束通過透鏡後於遠方一交會處交會。The anemometer of the present invention may further comprise a lens disposed on one side of the objective lens, such that the first speed laser beam and the second speed laser beam pass through the lens and meet at a distant intersection.
本發明之測距儀包括一第二雷射光源、一風速計及一顯示裝置。第二雷射光源發出一測距雷射光束至一被測物。物鏡匯聚由被測物反射回來的測距雷射光束。光接收器接收由物鏡所匯聚的由被測物反射回來的測距雷射光束。顯示裝置顯示由測距儀所測得的被測物之距離及交會處之風速。The range finder of the present invention comprises a second laser light source, an anemometer and a display device. The second laser source emits a ranging laser beam to an object to be measured. The objective lens converges the ranging laser beam reflected from the object under test. The light receiver receives the ranging laser beam reflected by the objective lens and reflected by the object to be measured. The display device displays the distance of the measured object measured by the range finder and the wind speed at the intersection.
其中測距雷射光束為一紅外光束。The ranging laser beam is an infrared beam.
其中第二雷射光源為一半導體雷射光源。The second laser source is a semiconductor laser source.
其中顯示裝置為一液晶顯示器(LCD)或者為一有機發光二極體(OLED)或者為一主動矩陣有機發光二極體(AMOLED)。The display device is a liquid crystal display (LCD) or an organic light emitting diode (OLED) or an active matrix organic light emitting diode (AMOLED).
本發明之測距儀可更包括一目鏡，設置於顯示裝置之一側，以通過目鏡來觀看顯示裝置。The range finder of the present invention may further include an eyepiece disposed on one side of the display device to view the display device through the eyepiece.
為使本發明之上述目的、特徵、和優點能更明顯易懂，下文特舉較佳實施例並配合所附圖式做詳細說明。The above described objects, features, and advantages of the invention will be apparent from the description and appended claims
10‧‧‧風速計10‧‧‧ anemometer
11‧‧‧第一雷射光源11‧‧‧First laser source
111‧‧‧第一測速雷射光束111‧‧‧First speed laser beam
112‧‧‧第二測速雷射光束112‧‧‧Second speed laser beam
12‧‧‧單模保偏光纖耦合器12‧‧‧ Single mode polarization-maintaining fiber coupler
121‧‧‧耦合器本體121‧‧‧ Coupler body
122‧‧‧輸入端光纖122‧‧‧Input fiber
123、124‧‧‧輸出端光纖123, 124‧‧‧ Output fiber
13、14‧‧‧光纖準直器13, 14‧‧‧ Fiber Collimator
15‧‧‧物鏡15‧‧‧ Objective lens
16‧‧‧光接收器16‧‧‧Optical Receiver
17‧‧‧交會處17‧‧‧At the meeting
18‧‧‧連續光脈衝18‧‧‧Continuous light pulse
19‧‧‧雙箭頭方向19‧‧‧Double arrow direction
A‧‧‧箭頭方向A‧‧‧ arrow direction
α、β‧‧‧夾角α, β‧‧‧ angle
20‧‧‧測距儀20‧‧‧ Range finder
21‧‧‧第一雷射光源21‧‧‧First laser source
211T‧‧‧第一測速雷射光束211T‧‧‧The first speed laser beam
212T‧‧‧第二測速雷射光束212T‧‧‧Second speed laser beam
22‧‧‧單模保偏光纖耦合器22‧‧‧ Single mode polarization-maintaining fiber coupler
221‧‧‧耦合器本體221‧‧‧ Coupler body
222‧‧‧輸入端光纖222‧‧‧Input fiber
223、224‧‧‧輸出端光纖223, 224‧‧‧ Output fiber
23、24‧‧‧光纖準直器23, 24‧‧‧ Fiber Collimator
25‧‧‧物鏡25‧‧‧ Objective lens
26‧‧‧光接收器26‧‧‧Optical Receiver
27‧‧‧第二雷射光源27‧‧‧Second laser source
27T‧‧‧測距雷射光束27T‧‧‧Ranging laser beam
27R‧‧‧反射測距雷射光束27R‧‧‧Reflex Range Laser Beam
28‧‧‧連續光脈衝28‧‧‧Continuous light pulse
29‧‧‧顯示裝置29‧‧‧Display device
30‧‧‧目鏡30‧‧‧ eyepiece
第1A圖係依據本發明之風速計之一實施例的架構與光路示意圖。Figure 1A is a schematic illustration of the architecture and optical path of one embodiment of an anemometer in accordance with the present invention.
第1B圖為第1A圖之局部放大圖。Fig. 1B is a partial enlarged view of Fig. 1A.
第1C圖為連續光脈衝之波形訊號圖。Figure 1C is a waveform diagram of a continuous light pulse.
第2圖係依據本發明之測距儀之一實施例的架構與光路示意圖。Figure 2 is a schematic illustration of the architecture and optical path of one embodiment of a range finder in accordance with the present invention.
請參閱第1A圖。第1A圖係依據本發明之風速計之一實施例的架構與光路示意圖。如第1A圖所示，風速計10包括一第一雷射光源11、一單模保偏光纖耦合器12、二光纖準直器13、14、一物鏡15及一光接收器16。單模保偏光纖耦合器12包括一耦合器本體121、一輸入端光纖122及二輸出端光纖123、124，輸入端光纖122與第一雷射光源11連接，輸出端光纖123、124分別與兩光纖準直器13、14連接。物鏡15設置於兩光纖準直器13、14之間。光接收器16設置於物鏡15之一側。Please refer to Figure 1A. Figure 1A is a schematic illustration of the architecture and optical path of one embodiment of an anemometer in accordance with the present invention. As shown in FIG. 1A, the anemometer 10 includes a first laser source 11, a single mode polarization maintaining fiber coupler 12, two fiber collimators 13, 14, an objective lens 15, and a light receiver 16. The single mode polarization maintaining fiber coupler 12 includes a coupler body 121, an input fiber 122 and two output fibers 123, 124. The input fiber 122 is connected to the first laser source 11, and the output fibers 123, 124 are respectively The two fiber collimators 13, 14 are connected. The objective lens 15 is disposed between the two fiber collimators 13, 14. The light receiver 16 is disposed on one side of the objective lens 15.
當第一雷射光源11所發出的一測速雷射光束經由輸入端光纖122輸入單模保偏光纖耦合器12後，因為單模保偏光纖耦合器12之分光比大約為50比50，此測速雷射光束通過耦合器本體121後將被分成兩束能量大約相等的一第一測速雷射光束111及一第二測速雷射光束112，第一測速雷射光束111及第二測速雷射光束112分別由輸出端光纖123及輸出端光纖124傳送，再分別通過光纖準直器13、14後變成準直光束輸出。兩光纖準直器13、14並非平行置放而是夾一個角度，使得第一測速雷射光束111及第二測速雷射光束112於遠方一交會處17交會。因為第一測速雷射光束111及第二測速雷射光束112是由同一束測速雷射光束經由單模保偏光纖耦合器12所分出，所以在交會處17之第一測速雷射光束111及第二測速雷射 光束112之波長與極化方向皆相同、相位差固定，交會處17之第一測速雷射光束111及第二測速雷射光束112因而產生干涉。When a speed laser beam emitted by the first laser source 11 is input to the single mode polarization maintaining fiber coupler 12 via the input fiber 122, since the split ratio of the single mode polarization maintaining fiber coupler 12 is approximately 50 to 50, this The speed-measuring laser beam passes through the coupler body 121 and is split into two first-speed laser beams 111 and a second-speed laser beam 112 having approximately equal energy, a first speed laser beam 111 and a second speed laser. The beam 112 is transmitted by the output fiber 123 and the output fiber 124, respectively, and then passed through the fiber collimators 13, 14 to become a collimated beam output. The two fiber collimators 13, 14 are not placed in parallel but at an angle such that the first speed laser beam 111 and the second speed laser beam 112 meet at a distant intersection. Since the first speed laser beam 111 and the second speed laser beam 112 are separated by the same beam speed laser beam via the single mode polarization maintaining fiber coupler 12, the first speed laser beam 111 at the intersection 17 And second speed laser The wavelength of the beam 112 is the same as the polarization direction, and the phase difference is fixed. The first speed laser beam 111 and the second speed laser beam 112 at the intersection 17 thus interfere.
請同時參閱第1B圖及第1C圖。第1B圖為第1A圖之局部放大圖。第1C圖為連續光脈衝之波形訊號圖。如第1B圖所示，第一測速雷射光束111及第二測速雷射光束112交會於交會處17且產生干涉，在交會處17的光束強度分佈將變成如明暗相間條紋的分佈，當一個微小粒子(未圖示)受到一道風吹拂，以速度等於v、方向為箭頭方向A進入交會處17，由於交會處17之光束強度分佈變成如明暗相間條紋的分佈，每當微小粒子運動至明紋區時將散射出一光脈衝，當微小粒子通過明暗相間條紋區後將散射出一連續光脈衝18，此連續光脈衝18射向風速計10，先經物鏡15匯聚後再由光接收器16接收，由光接收器16所得到的連續光脈衝18之波形訊號將如第1C圖所示，再由公式f=(2v/λ)[sin(α/2)]cos(β)的計算，可算出微小粒子的速度v，即為交會處17所測得的風速，上述公式中，f為第1C圖中的波形訊號之頻率，λ為第一測速雷射光束111之波長，α為第一測速雷射光束111與第二測速雷射光束112之夾角(如第1B圖所示)，β為微小粒子前進方向(即箭頭方向A)與連續光脈衝前進方向互相垂直的方向(即雙箭頭方向19)之夾角(如第1B圖所示)。Please also refer to Figure 1B and Figure 1C. Fig. 1B is a partial enlarged view of Fig. 1A. Figure 1C is a waveform diagram of a continuous light pulse. As shown in FIG. 1B, the first speed laser beam 111 and the second speed laser beam 112 intersect at the intersection 17 and cause interference, and the beam intensity distribution at the intersection 17 will become a distribution of light and dark stripes, when one The tiny particles (not shown) are blown by a wind, and enter the intersection 17 at a speed equal to v and the direction of the arrow A. Since the beam intensity distribution at the intersection 17 becomes a distribution of light and dark stripes, whenever the minute particles move to the Ming A light pulse will be scattered in the grain region. When the fine particles pass through the light and dark phase stripe region, a continuous light pulse 18 will be scattered. The continuous light pulse 18 is directed to the anemometer 10, and then concentrated by the objective lens 15 and then received by the light receiver. 16 receiving, the waveform signal of the continuous optical pulse 18 obtained by the optical receiver 16 will be as shown in Fig. 1C, and then calculated by the formula f = (2v / λ) [sin (α / 2)] cos (β) The velocity v of the minute particle can be calculated, that is, the wind speed measured at the intersection 17, wherein f is the frequency of the waveform signal in the 1C chart, and λ is the wavelength of the first speed laser beam 111, and α is The first speed laser beam 111 and the second speed laser beam 112 The angle (as shown in Fig. 1B), β is the angle between the direction in which the fine particles advance (i.e., the direction of the arrow A) and the direction in which the continuous light pulses travel in the direction perpendicular to each other (i.e., the direction of the double arrow 19) (as shown in Fig. 1B).
請參閱第2圖，第2圖係依據本發明之測距儀之一實施例的架構與光路示意圖。測距儀20包括一第一雷射光源21、一單模保偏光纖耦合器22、二光纖準直器23、24、一物鏡25、一光接收器26、一第二雷射光源27、一顯示裝置29及一目鏡30。單模保偏光纖耦合器22包括一耦合器本體221、一輸入端光纖222及二輸出端光纖223、224，此單模保偏光纖耦合器22之分光比大約為50比50，輸入端光纖222與第一雷射光源21連接，輸出端光纖223、224分別與光纖準直器23、24連接。物鏡25設置於 兩光纖準直器23、24之間。光接收器26設置於物鏡25之一側。顯示裝置29設置於光接收器26之一側。目鏡30設置於顯示裝置29之一側。Please refer to FIG. 2, which is a schematic diagram showing the architecture and optical path of an embodiment of the range finder according to the present invention. The range finder 20 includes a first laser source 21, a single mode polarization maintaining fiber coupler 22, two fiber collimators 23, 24, an objective lens 25, a light receiver 26, and a second laser source 27. A display device 29 and an eyepiece 30. The single mode polarization maintaining fiber coupler 22 includes a coupler body 221, an input fiber 222, and two output fibers 223, 224. The split mode of the single mode polarization maintaining fiber coupler 22 is about 50 to 50. 222 is coupled to first laser source 21, and output fibers 223, 224 are coupled to fiber collimators 23, 24, respectively. The objective lens 25 is disposed at Between the two fiber collimators 23, 24. The light receiver 26 is disposed on one side of the objective lens 25. The display device 29 is disposed on one side of the light receiver 26. The eyepiece 30 is disposed on one side of the display device 29.
第二雷射光源27、物鏡25及光接收器26構成測距儀20的雷射發射與接收系統。第一雷射光源21、單模保偏光纖耦合器22、光纖準直器23、24、物鏡25及光接收器26構成測距儀20的測風速系統。顯示裝置29及目鏡30構成測距儀20的顯示系統。使得測距儀20同時具有測量距離與測量風速之功能。此外，測距儀20中的測風速系統使用單模保偏光纖耦合器及光纖準直器，且與雷射發射與接收系統共用物鏡及光接收器，使得測距儀20組裝容易且體積不致於過大，易於攜帶使用。The second laser light source 27, the objective lens 25, and the light receiver 26 constitute a laser emitting and receiving system of the range finder 20. The first laser light source 21, the single mode polarization maintaining fiber coupler 22, the fiber collimators 23, 24, the objective lens 25, and the light receiver 26 constitute the wind speed measuring system of the range finder 20. The display device 29 and the eyepiece 30 constitute a display system of the range finder 20. The range finder 20 has the functions of measuring distance and measuring wind speed at the same time. In addition, the wind speed measurement system in the range finder 20 uses a single mode polarization maintaining fiber coupler and a fiber collimator, and shares the objective lens and the light receiver with the laser transmitting and receiving system, so that the range finder 20 is easy to assemble and the volume is not good. It is too large and easy to carry.
當用於測量距離時，第二雷射光源27發出一測距雷射光束27T射向一被測物(未圖示)。被測物可將入射的測距雷射光束27T反射，使一反射測距雷射光束27R射向測距儀20，經由物鏡25匯聚後入射光接收器26，再經後續的資料處理將測出的被測物距離顯示於顯示裝置29，使用者可透過目鏡30檢視顯示裝置29所呈現的被測物距離資料。When used to measure the distance, the second laser source 27 emits a ranging laser beam 27T directed toward an object to be tested (not shown). The measured object can reflect the incident ranging laser beam 27T, and a reflective ranging laser beam 27R is incident on the range finder 20, is concentrated by the objective lens 25, and then incident on the optical receiver 26, and then measured by subsequent data processing. The distance of the measured object is displayed on the display device 29, and the user can view the distance data of the measured object presented by the display device 29 through the eyepiece 30.
當用於測量風速時，第一雷射光源21發出一測速雷射光束，此測速雷射光束經由輸入端光纖222輸入單模保偏光纖耦合器22後，因為單模保偏光纖耦合器22之分光比大約為50比50，此測速雷射光束通過耦合器本體221後將被分成兩束能量大約相等的一第一測速雷射光束211T及一第二測速雷射光束212T，第一測速雷射光束211T及第二測速雷射光束212T分別由輸出端光纖223及輸出端光纖224傳送，再分別通過光纖準直器23、24後變成準直光束輸出。兩光纖準直器23、24並非平行置放而是夾一個角度，使得第一測速雷射光束211T及第二測速雷射光束212T於遠方一交會處(未圖示，請參考第1B圖)交會產生干涉。當隨著風運動的微小粒子通過第一測速雷射光束211T及第二測速雷射光束212T之交會處 後，將散射出一連續光脈衝28射向測距儀20，連續光脈衝28經物鏡25匯聚後入射光接收器26，再經後續的計算處理即可得到第一測速雷射光束211T及第二測速雷射光束212T交會處之風速，此風速資料再顯示於顯示裝置29，使用者可透過目鏡30檢視顯示裝置29所呈現的風速資料。When used to measure wind speed, the first laser source 21 emits a velocity laser beam that is input to the single mode polarization maintaining fiber coupler 22 via the input fiber 222 because of the single mode polarization maintaining fiber coupler 22 The splitting ratio is about 50 to 50. The speed-measuring laser beam passes through the coupler body 221 and is split into two first-speed laser beams 211T and a second-speed laser beam 212T, which are approximately equal in energy. The laser beam 211T and the second speed laser beam 212T are respectively transmitted by the output fiber 223 and the output fiber 224, and then passed through the fiber collimators 23 and 24 to become collimated beam outputs. The two fiber collimators 23, 24 are not placed in parallel but at an angle such that the first speed laser beam 211T and the second speed laser beam 212T are at a distant intersection (not shown, please refer to FIG. 1B). Intersection interferes. When the tiny particles moving with the wind pass through the intersection of the first speed laser beam 211T and the second speed laser beam 212T After that, a continuous light pulse 28 is scattered to the range finder 20, and the continuous light pulse 28 is concentrated by the objective lens 25 and then incident on the light receiver 26, and then subjected to subsequent calculation processing to obtain the first speed laser beam 211T and the first At the intersection of the two speed laser beams 212T, the wind speed data is displayed on the display device 29, and the user can view the wind speed data presented by the display device 29 through the eyepiece 30.
上述實施例中的第一雷射光源21可為半導體雷射光源，第一測速雷射光束211T及第二測速雷射光束212T之波長可為1310nm或者為1550nm。The first laser light source 21 in the above embodiment may be a semiconductor laser light source, and the first speed laser beam 211T and the second speed laser beam 212T may have a wavelength of 1310 nm or 1550 nm.
上述實施例中的第二雷射光源27可為半導體雷射光源，測距雷射光束27T可為紅外光束，光接收器26可為崩潰光二極體(APD)。The second laser light source 27 in the above embodiment may be a semiconductor laser light source, the ranging laser beam 27T may be an infrared light beam, and the light receiver 26 may be a crash light diode (APD).
上述實施例中的顯示裝置29可為液晶顯示器(LCD)或者為有機發光二極體(OLED)或者為主動矩陣有機發光二極體(AMOLED)。The display device 29 in the above embodiment may be a liquid crystal display (LCD) or an organic light emitting diode (OLED) or an active matrix organic light emitting diode (AMOLED).
上述實施例中，兩光纖準直器23、24並非平行置放而是夾一角度，使得第一測速雷射光束211T及第二測速雷射光束212T於遠方交會時兩光束也夾一角度，然而可以了解到，若兩光纖準直器23、24改為平行置放，第一測速雷射光束211T及第二測速雷射光束212T將互相平行而不於遠方交會，若再加入一透鏡，使得原本為互相平行的第一測速雷射光束211T及第二測速雷射光束212T通過此透鏡後於遠方交會，亦應屬本發明之範疇。In the above embodiment, the two fiber collimators 23 and 24 are not placed in parallel but at an angle such that the first beam of the first speed laser beam 211T and the second speed laser beam 212T are at an angle when the remote beam meets. However, it can be understood that if the two fiber collimators 23, 24 are placed in parallel, the first speed laser beam 211T and the second speed laser beam 212T will be parallel to each other and not to the far side. It is also within the scope of the present invention that the first speed laser beam 211T and the second speed laser beam 212T, which are originally parallel to each other, pass through the lens and meet at a distance.
雖然本發明已以較佳實施例揭露如上，然其並非用以限定本發明，任何於其所屬技術領域中具有通常知識者，在不脫離本發明之精神和範圍內，仍可作些許的更動與潤飾，因此本發明之保護範圍當視後附之申請專利範圍所界定者為準。Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the present invention, and it is possible to make some modifications without departing from the spirit and scope of the invention. And the scope of the present invention is defined by the scope of the appended claims.
20‧‧‧測距儀20‧‧‧ Range finder
21‧‧‧第一雷射光源21‧‧‧First laser source
211T‧‧‧第一測速雷射光束211T‧‧‧The first speed laser beam
212T‧‧‧第二測速雷射光束212T‧‧‧Second speed laser beam
22‧‧‧單模保偏光纖耦合器22‧‧‧ Single mode polarization-maintaining fiber coupler
221‧‧‧耦合器本體221‧‧‧ Coupler body
222‧‧‧輸入端光纖222‧‧‧Input fiber
223、224‧‧‧輸出端光纖223, 224‧‧‧ Output fiber
23、24‧‧‧光纖準直器23, 24‧‧‧ Fiber Collimator
25‧‧‧物鏡25‧‧‧ Objective lens
26‧‧‧光接收器26‧‧‧Optical Receiver
27‧‧‧第二雷射光源27‧‧‧Second laser source
27T‧‧‧測距雷射光束27T‧‧‧Ranging laser beam
27R‧‧‧反射測距雷射光束27R‧‧‧Reflex Range Laser Beam
28‧‧‧連續光脈衝28‧‧‧Continuous light pulse
29‧‧‧顯示裝置29‧‧‧Display device
30‧‧‧目鏡30‧‧‧ eyepiece
Claims (10)
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| TW103110832A TWI485404B (en) | 2014-03-24 | 2014-03-24 | Range finder and anemometer thereof |
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| TW103110832A TWI485404B (en) | 2014-03-24 | 2014-03-24 | Range finder and anemometer thereof |
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| TWI485404B true TWI485404B (en) | 2015-05-21 |
| TW201537177A TW201537177A (en) | 2015-10-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111693730A (en) * | 2020-07-02 | 2020-09-22 | 德州尧鼎光电科技有限公司 | Photoelectric current meter for near-wall flow velocity measurement and velocity measurement method |
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| WO1983002329A1 (en) * | 1981-12-28 | 1983-07-07 | Knuhtsen, John | Laser-doppler-anemometer |
| US6847437B2 (en) * | 2000-12-21 | 2005-01-25 | Thales | Laser anemometer |
| TW200532234A (en) * | 2004-03-17 | 2005-10-01 | Asia Optical Co Inc | Optical optical system of laser meter |
| CN203491501U (en) * | 2013-10-22 | 2014-03-19 | 无锡津天阳激光电子有限公司 | Tetrapolar output double 808 nm, 532nm and 1064 nm wavelength fiber laser for anemoscope |
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| WO1983002329A1 (en) * | 1981-12-28 | 1983-07-07 | Knuhtsen, John | Laser-doppler-anemometer |
| US4575238A (en) * | 1981-12-28 | 1986-03-11 | Disa Elektronik A/S | Laser-doppler-anemometer |
| US6847437B2 (en) * | 2000-12-21 | 2005-01-25 | Thales | Laser anemometer |
| TW200532234A (en) * | 2004-03-17 | 2005-10-01 | Asia Optical Co Inc | Optical optical system of laser meter |
| CN203491501U (en) * | 2013-10-22 | 2014-03-19 | 无锡津天阳激光电子有限公司 | Tetrapolar output double 808 nm, 532nm and 1064 nm wavelength fiber laser for anemoscope |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111693730A (en) * | 2020-07-02 | 2020-09-22 | 德州尧鼎光电科技有限公司 | Photoelectric current meter for near-wall flow velocity measurement and velocity measurement method |
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| TW201537177A (en) | 2015-10-01 |
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