With optical displacement meter, non-electricity detection can be realized, which helps to avoid the effect of strong electromagnetic field and humidity.
利用光学测量变形,可以实现探测器无电化设计,使得测量不受强电磁场和湿度的影响。
A new portable optical displacement measurement system based on PSD is introduced in which Position sensitive devices and Digital signal processor are applied.
本文介绍一种基于位置敏感探测器(PSD)的便携式微小位移测量系统的设计。
Basedg on Fourier optical principle, the imaging property of grating illuminated by expansion source is analysed in this paper. Hence an innovative grating imaging displacement sensor is designed.
该文应用傅里叶光学原理对扩展光源照明下光栅的成象特性作了分析,并由此设计出一种新型的光栅成象型位移传感器。
A displacement optical fiber sensor was used for dynamic measuring the relationship between attenuation and displacement.
测量中使用了光纤位移传感器,对衰减与位移的关系进行了动态测量。
A new technique for measuring large displacement of object by non-contact optical method is presented.
提出了一种非接触光学法——单光栅双图像法测量物体大位移的新技术。
By analyzing the direct frequency modulation and optical feedback effect of laser diode, a theoretical model for measuring small vibration displacement and velocity is discussed.
分析了在直接频率调制下,激光二极管中的光反馈效应,探讨了振动微小位移和速度的理论模型。
The displacement measurement method and distribution character for large-scale landslide model are studied with automatic mesh method, in terms of non-touched optical measurement theory.
应用非接触式光学测量方法中自动网格法原理,研究了大型滑坡模型试验中的位移测试方法及其分布规律。
An all fiber Weak coherent optical fiber sensor (OFS) system for displacement measurement with a fiber Young's decoding interferometer is proposed and demonstrated.
提出并演示了一种由两光纤构成的杨氏干涉解调系统的全光纤低相干光纤位移传感系统。
A nanometer system for displacement measurement is described, which is based on the principle of optical lever.
介绍了一种基于光杠杆原理的光学微位移测量系统。
A new technique for measuring large displacement of object by non-contact optical method is presented. The method is called as single-grating double-image method.
提出了一种非接触光学法——单光栅双图像法测量物体大位移的新技术。
A laser huge pulse irradiates on aluminium plates to cause ultrasonic waves. The waveform of the rear surface displacement produced by ultrasounds is detected with optical homodyne.
激光巨脉冲在金属铝块上产生超声波,由光学零差探测得到超声引起的后表面位移的波形。
If an optical cavity is somehow disrupted, as for example by the displacement or removal of one mirrors, the laser action generally ceases.
如果光学腔由于某种原因被破坏,例如挪动或取走一个镜片,激光通常就停止了。
The self-displacement inspection unit of the robot was designed with optical navigation chip based on rapid image acquiring and processing technologies.
采用基于快速图像获取和图像处理技术的光学导航芯片,设计了机器人自身位移检测单元。
Using the transparence CD, PSD can detect the displacement of laser spot between non-placing and placing the CD, and it can be used to calculate the parallelism between optical head and spindle motor.
考虑在主轴上放置透明盘片,用PSD测量位移子系统测出放置透明盘片前后的光斑移动距离,就可以计算出光头与主轴马达间的平行度。
Several basic principles and methods of using the optical sensor to measure the displacement are presented, and the property and application of sensor is analyzed by experiment.
给出了几种运用光位移传感器对线性位移检测的基本原理和方法,并通过实验对传感器测试性能、应用进行分析。
They are optical-mechanical method, displacement detecting method and direct adjustment method.
轴向位移检测法和直接调整法。
The basic principles of multi-parameter tunable optical fiber grating wavelength tuner based on stress, displacement, space angle are analyzed and relative experimental researches are performed.
在模拟分析的基础上,设计了一种基于应力、位移、空间角度的多参数可调谐的光纤光栅波长调谐器,并进行了实验验证。
The optical measurement system of digital image correlation method was established, and the full field displacement of the single-edge crack specimen was obtained experimentally.
通过搭建数字图像相关方法光学非接触测量系统,试验表征含单边裂纹芳纶纤维复合材料试验件在拉伸载荷作用下的全场位移。
This practical circuit system also suits for other reflective optical fiber displacement sensor testing systems in the similar condition.
该传感器电路系统同样适用于类似条件下用反射式光纤位移传感器测量的其他系统。
An optical micro-displacement measurement method based on elliptic spot and off-axis principle is proposed.
提出一种基于离轴法并采用椭圆光斑的光学微位移计量手段。
To validate the efficiency of the method, simulation experiments are applied for the optical images with large deformation and with large displacement of the sensor.
为了验证该方法的有效性,针对变形较大和传感器位移较大的光学遥感图像设计了仿真实验。
The system consisting of optical fiber displacement sensor and solid linear expansion coefficient apparatus, is used to measure the linear expansion coefficient of metal.
将反射式光纤位移传感器应用于固体线膨胀系数测定仪,可以较精确地测定金属线胀系数。
A scheme Of optical fiber displacement sensor with renective dual F-P interferometers is presented. In this scheme a LED is used as light source.
提出了一种反射式双F-P干涉仪光纤位移传感器方案,在这个方案中采用LED作为光源。
Several optical measurement methods applied to measure displacement of model are discussed.
详细地分析了几种光学测试方法在模型试验中的使用情况。
Based on characteristics of optical polarizing, Malus law, and Faraday optical rotation, a long-range displacement detector is realized by same light source and double light route.
基于光的偏振特性、马吕斯定理和法拉第旋光效应,采用同光源双光路检测,实现了大量程直线位移的测量。
This article discusses the method and principle of measuring displacement and vibration by means of the reflective optical fiber sensor.
本文讨论反射式光纤传感器测量位移和振动的方法和原理。
A set of data processing system of EFPI optical fiber micro displacement sensor is designed.
设计了一套EFPI光纤微位移传感器数据处理系统。
The optical technology used in accuracy test, displacement measurement and vibration analysis has more and more importance today.
光学技术用于精度检验、位置测量或振动分析,现已越来越具有重大的意义。
Transmitting effects of aero-optics is very important to optical imaging probing system of interceptor, as it may cause displacement, jitter and blurring of image to receive for the system.
气动光学传输效应对飞行器光学成像探测系统的性能有着十分重要的影响,它使探测器接受的图像产生偏移、抖动和模糊。
The new concept of optical fiber bridge is presented. The sensor of measuring rotation angular and displacement can te performed by using the bridge.
提出了“光纤桥”新概念,利用“光纤桥”构成了测量转角、位移的光纤传感器。
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