探测器

A study on the effe ct of slotting technology and surface treatment upon energy resolution for BGO crystal array detector used in positron emission tomography-PET is de scribed.

介绍了用于正电子发射断层扫描仪的阵列式探测器中的BGO晶体开槽工艺和表面处理对探测器能量分辨率影响的研究，并给出了有关的实验结果。

An about 18-day test run has been finished and the veto efficiency of CsI crystal anti-Compton detector is about 31% and the event rate of background spectrum of HPGe detector is about 133cpd.

实验数据表明，CsI晶体探测器的反符合效率约为31％，HPGe探测器的本底计数率水平约为 133cpd。

The light source detecter makes used of the variation of the separated voltage by the resistivity of photosensitive resistance input to the singlechip. If the voltage higher than a worth, the singlechip will regard it as high voltage state, it means that the light source has been detected. Otherwise the low voltage state means the light source has not been detected.

光源探测是利用光敏电阻阻值分压的变化向单片机输入，电压大于某值时，单片机认为是高电平，即表示该路探测器感应到光源，否则为低电平，即表示探测器没有感应到光源，如此即可由两路信号判断光源的方向。

The result of frequency response analysis shows that when the modulation frequency of incident radiation increases, the phenomenon that the response of detector lagging behind the variation of radiation becomes evident, the temperature variation range in pyroelectric thin film decreases, but the variation velocity increases, so the current resulting from pyroelectric effect increases.

频率响应分析表明：随着入射辐射调制频率的增大，可以观察到探测器响应的滞后现象越来越明显，热释电薄膜中的温度变化范围减小，但变化速率增大，因此探测器的热释电电流增大。

He devised a new type of detector that was an electronic device.

他设计 设计了一种新的探测器探测器，那是一种电子装置装置。

Dewar is an important component of the astronomical observation.CCD should be cooled to low temperature by Dewar,because of the noise and dark current.

杜瓦瓶是天文观测中重要的终端设备部件，对降低探测器的暗流和噪声有不可替代的作用，被广泛用于冷却各种探测器。

In this paper, we tested and analyzed the interferences produced by stirling cryocooler which is used in IR detector composite with three optical windows dewar.

文中就斯特林制冷机应用在三光窗杜瓦红外探测器组件中对红外探测器的信号产生的干扰问题进行了多方面探讨、测试及分析研究。

Seven kinds of antijamming methods,such as time correlated choice and field-of-view shrinkage, inertial track,real-time memory criterion,amplitude discrimination, pulse-width discrimination, pulse-amplitude time sequence discrimination and pulse-width amplitude discrimination for Counter-Infrared-Interference-Missile with the cross-shaped detector array are given.

介绍了四元正交探测器以及红外干扰弹的工作原理，对四元正交探测器导引系统抗红外干扰的7种方法(即时间相关选择和视场收缩技术、惯性跟踪机制、实时记忆准则、幅值鉴别法、脉冲宽度鉴别法、脉冲幅值序列鉴别法和脉冲宽度幅值鉴别法)等进行了讨论。

The experimental research on Subpixel Technology is carried out too,using a distinguishability board as the object.

两帧图像可以采用焦平面阵列探测器获得〔3 ，4〕，也可采用线列探测器光机扫描获得〔5〕，它们在两维方向上各错开半个象元距离。

On the other hand, the responsibility of the detectors is not consonant with each other, which causes the serious non-unification among the infrared detectors. The distinguishability of the image has been reduced, which will reduce the distance of the infrared systems operation at the same time.

其次，热成像系统中32元探测器的特征性能参数并不完全一致，造成各个探测器之间非常严重的不均匀性现象，降低了图像的分辨率，影响了热成像系统的有效作用距离。

Since historical times,England ,where the early inhabitants were Celts, has been conquered three times .

从有历史以来，英国，在此地早期居住的是凯尔特人，已经被征服了三次。

Bluetooth OBEX File Transfer Enables the sending and receiving of files on your phone via Bluetooth.

蓝牙OBEX文件移动允许经过蓝牙传送和接受文件。。。。