A position detector and 3 beams of ray are used to measure the prismatic, spherical and astigmatic powers.
提出一种眼镜度数测量方法，利用位置探测器和3条光线实现对棱镜度、球镜度和散光度等镜片参数的测量。
The displacement sensor of Z axis adopts single point laser position detector PSD, and its resolution is about 10nm.
方向位移传感器采用激光单点位置探测器P SD,Z轴方向的位移测量精度达10纳米。
This paper introduces a backscattering position Detector with semiconductor laser. This instrument can be widely applied in steel and metal industries.
一种可见光半导体激光后向接收定位，测位仪，达到了先进的技术性能，在钢铁、冶金等行业具有较好的应用前景。
The control system is composed of setting unit(host computer ), digital controller , input channel (position detector)and output channel (actuating mechanism).
电控系统由设定器（上位机）、数字控制器、输入通道（位置检测）和后向通道（执行机构）构成。
Once it has passed through the slits, the photon strikes a position sensitive detector.
一旦它通过通过狭缝，光子就会击中位置灵敏探测器。
Dirac pointed out that one of the only ways to measure a particle's position is by bouncing a photon off of it, and seeing where and how that photon lands on a detector.
狄拉克指出唯一的方法就是通过反弹一个光子，并观察它在检测器上的位置和轨迹来测量一个粒子的位置。
The characteristic and construction of charge-division type position sensitive detector are described in this paper, and the preliminary experimental results are also presented.
本文对电荷除法型位置灵敏探测器的特征和结构进行了描述。并给出了初步的实验结果。
In practical measurement, the positioning precision of position sensitive detector (PSD) is greatly affected by the size and asymmetry of the spot.
在实际测量中，由于光斑具有一定尺寸和不对称性，在很大程度上影响了位置敏感探测器(PSD)的定位精度。
A demonstration system with DSP as controller used for testing double-axis tracking control techniques is designed by using four-quadrant detector as position sensor.
采用四象限探测器作为位置传感器，设计出以dsp作为控制器的双轴跟踪控制试验演示系统。
The technology and preliminary test results of Si bi-dimension position sensitive detector based on multi-strip structure fabricated by using planar technology were described in this paper.
描述了用平面工艺技术研制基于硅多条的两维位置灵敏探测器的制各工艺技术及性能测试初步结果。
The detector consists of two layers of LSO crystals and a position sensitive photomultiplier tube .
这个探测器是由两层氧正硅酸镥晶体晶体和位置灵敏型光电倍增管组成。
The position sensitive detector(PSD) can be used for many types of precision and contactless dgmatic distance detection.
光电位置敏感探测器（PSD）已应用到非接触式高精度动态位移测量中。
The purpose is to introduce the signal processing system of position detection based on four-quadrant infrared detector.
实现基于四象限红外探测器的位置检测信号处理系统。
A new method for large shaft alignment was proposed based on visual laser technology and PSD (position sensitive detector) technology.
提出了一种采用位置敏感探测器(PSD)技术与激光技术相结合实现大型轴系对中检测的新方法。
According to spot in the four-quadrant detector photosensitive surface position to calculate the ship's yaw Angle relative to the laser source.
根据光斑在四象限探测器光敏面上的位置来计算船舶相对于激光光源的偏转角度。
Inside the sphere cavity, the ratio of ultra thermal neutron counting rate to thermal one is less than 10%, but the counting rates slightly depend on the position of thermal neutron detector.
球腔内超热与热中子计数比小于10%，计数率依赖于热中子探测器所在位置。
In many sensing applications, an imaging spot must be received in the image plane with detector to extract the data of spatial depth and lateral position of the object.
在传感技术的许多应用中，经常需要用探测器在象面上接收一个成象斑点，以便从中提取空间深度和位置信息。
A new technique for measuring the accurate position of the focal plane of an optical system with position sensitive detector (PSD) is presented.
本文介绍一种新的焦面检测方法，以位置敏感探测器P SD作为检焦器件对光学系统的实际焦面进行检测。
The one dimension Position Sensitive detector can improve detector efficiency greatly.
一维位置灵敏探测器可以大大提高谱仪的探测效率。
A high precision infrared light spot motion analysis and measurement system based on a new type position sensitive detector (PSD) and stereo measurement was developed.
高精度红外光点位置检测分析系统是基于光电位置敏感器件、立体测量学研制而成的运动物体分析系统。
This paper puts forward the testing system of characteristics of electrical vibration table based on position sensitive detector .
详细介绍了基于位置敏感传感器的电振动台特性检测系统的研究。
Because of the variation of seawater depth and tide, the detector placed in the seafloor cannot be located in the designed position during seismic exploration in the paralic zone.
在滩浅海地震勘探中，由于海水深度和潮流的变化，在水面上按照预定位置沉放的检波器，在海底不可能放置在预定的位置。
The measurement system is based on facular-orientation theory of position sensitive detector (PSD).
测量系统基于PSD传感器的光斑定位原理。
The structure and properties of ring (position sensitive) gas filled detector were described.
本文介绍了环形(位置灵敏)充气探测器的结构及性能。
The paper introduces a travel speed detector for hoist based on the infrared laser position transducer.
本文介绍一种基于红外激光位置传感器的提升机运行速度检测装置。
But in the laser communication of APT technique, the position error signal's distill is very important, correspondingly, the choice of the detector seem to be to importance.
在光通信APT技术中，位置误差信号的提取是非常关键的一环，相应地探测器件的选择就显得至关重要。
A new method for large shaft alignment was proposed based on visual laser technology and PSD (position sensitive detector) technology.
微弱电流的放大与处理是基于位置敏感探测器(PSD)的微位移传感器的关键技术。
Function of under and upper thread auto detector, red light displayed on the thread broken position.
底面线自动检测功能，断线位置亮红灯显示。
Function of under and upper thread auto detector, red light displayed on the thread broken position.
底面线自动检测功能，断线位置亮红灯显示。
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