laser counter 中文意思是什麼
laser counter
解釋
激光記數器-
Laser dust counter
激光塵埃計數器 -
The key components in laser gyro is he - ne ring laser, and the reciprocal action theory between light and medium is the base in studying the ring laser, use the lamb half classical theory, and on the base of density matrix theory, the optical brounch equation was established, which described the movement of amplifying medium atom in the ring syntonic cavity, and according to the medium polarize theory the self consistent equations was deduced, which describe the light intensity and phasic of the counter - propagating wave. on the basis of this equations, adopted the simulation software matlab and virtual instrument programming language labwindows / cvi, we can do some simulated experiments in study the phenomenas such as amplify and dispersive characteristic of medium, mode pushing effection, burned hole effection and pattern competition, lock - in of frequency and the characteristic of light intensity and phasic of the counter - propagating wave in laser gyro
激光陀螺的核心部件為he - ne環形激光器，而掌握光與介質的相互作用理論是研究激光器的關鍵，採用拉姆半經典理論為主，在密度矩陣理論的基礎上，推導環形諧振腔中描述he - ne氣體增益介質原子運動的光學布洛赫方程，運用介質極化理論得出描述激光陀螺反向行波的光強、位相所滿足的自洽場方程組，在此基礎上，運用matlab模擬軟體和虛擬儀器編程語言labwindows / cvi ，對激光陀螺中的介質增益色散特性、頻率牽引效應、燒孔效應及模競爭、閉鎖效應及環激光的光強和相位特性進行模擬試驗研究，並且運用全量子理論，對激光工作原理進行分析，得出二能級系統單模輻射場的光子數密度分佈，得出激光場的光子統計分佈，模擬激光場的動態建立過程。 -
Therefore, the three fundamentals required to obtain high precise measurements are : 1 ) frequency stability and frequency difference stability of the double - frequency laser source as well as the stable equivalent length of bore ; 2 ) the measuring beam and the reference beam are placed very co - axially ; 3 ) capability of recording the sub - division of the period of phase change and a reversible counter system
因而干涉儀系統達到高精度的基礎是：頻率及頻差穩定的雙頻激光源、穩定的等效腔長；測量光與參考光合光後有很高同軸度的光路結構；能可靠記錄相位差變化周期數的細分及可逆計數系統三部分。 -
As the grocery items moves along the conveyor belt, the checker passes each item over a glass plate in the counter top, making sure that the upc symbols can be read by the laser beam under the glass
食品雜貨經傳送帶傳到收款員跟前，收款員隨即將每一物品擱在櫃臺上的一塊玻璃板上一掃，好使板下的掃描機閱讀條形碼。 -
Influence of the light source in airborne laser particle counter on the flux of transducer
塵埃粒子計數器中光源對傳感器光通量的影響分析 -
Horizon is an in - counter laser bar code scanner
Horizon是metrologic公司的新一代平臺式激光條形碼掃描儀。 -
In the counting system, a semiconductor laser emitter is used as the light source, point laser beam produced by optic system, reflection of part transferred into electric signal by photoelectric triode, and scm system as the counter
採用半導體激光發射器作為光源，經過光學系統形成的最小激光束照射器件，反射光由光電三極體進行光電轉換，計數控制使用單片機系統。 -
To ensure the precision of distance measuring, the high - speed laser driving circuit and the detect - amplifying circuit constituted by two class high - speed operational amplifiers are used in auto adaptive cruise - control system, and the laser flying time is measured by a sixteen bit ' s binary counter, whose counting frequency is 100 megahertz
為保障測距精度，裝置採用高速激光器驅動電路和由兩級高速運算放大器構成的探測放大電路，並用一個計數脈沖頻率為100mhz的16位二進制計數器完成激光收發間隔時間的測量。 -
Horizon is metrologic s next generation in - counter laser bar code scanner. this compact, hands - free scanner is designed with a dense 20 - line omnidirectional scan pattern that helps provide fast, efficient throughput with a high first - pass read rate
它的設計緊湊，操作方便，能形成一個由20條激光掃描線密布而成的全向掃描區域，掃描快速而高效，並且具有較高的一次掃描通過率。 -
With laser tooth whitening or over - the - counter products, you would need to have the treatment renewed every year if your teeth are prone to becoming discolored due to your lifestyle
如果你的生活方式導致你的牙齒有變色的傾向，那麼採用激光增白或使用非處方產品的話，你得每年都要重做。 -
Practical implementations of quantum key distribution systems use attenuated laser pulses as the signal source rather than single photons. the channels used to transmit are lossy. on the basis of above two points, a combining eavesdropping strategy of intercept - resend and beam - splitting is discussed in terms of eavesdropper ' s technology requirement and detection efficiency and dark count of single - photon counter
主要工作包括以下三部分：一、基於實際量子密鑰分配（ qkd ）系統中所使用的強衰減的激光脈沖不是單光子，量子密鑰分配的通道不是無損耗的，光子計數器存在探測效率和暗計數以及竊聽者的技術能力也不是無限的這些具體問題。 -
Binary optic imaging spectrometer is a practical image spectrometer that can be built to operate at ultraviolet, visible or infrared wavelengths for applications in surveillance, remote sensing, medical imaging, law enforcement, environmental monitoring, and laser counter intelligence
利用二元光學透鏡軸向色散的凝視成像光譜儀在理論上是可行的，它可設計為工作在紫外、可見、和紅外波段用於空間監視、遙感、醫學成像、環境監測等方面。 -
In signal processing circuit, the key of our study, based on methods of mcu + cpld and a / d converter, a time interval measurement unit is done, in which an isp cpld counter is carried out to judge laser pulse for controlling counting and offering signal of time series and control, and a count quantization error measurement circuit which main ramp circuit and 12 bits a / d conversion circuit guarantees the resolution of system
信號處理部分是本文研究的關鍵，採用mcu + cpld的設計方法和模數轉換技術構成時間間隔測量單元的理論基礎，其中用可在系統編程的cpld計數器實現了對循環光脈沖的判斷以開關計數，並提供計數量化誤差測量電路相應的時序和控制信號，用斜坡電路和12位a / d轉換電路完成對計數量化誤差的測量，保證了系統的解析度。
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