Results The members from the countryside center hospital and above attended usually radiological monitor, the reported rate of receiver was higher, the unusual irradiated events decreased, the individual radiation doses descended year by year. 结果全市乡中心卫生院以上医疗单位定期参加个人剂量监测,剂量监测元件上报率处于较高水平,放射监测异常事件减少,放射人员个人剂量逐年下降。
The influence is discussed in detail of receiver's gain fluctuation on measuring radiation characteristic and a radiometer is calibrated periodically to improve measure precision. 讨论了辐射特性测量时接收机的系统增益波动对辐射特性测量的影响和为了提高系统测量精度采用的周期定标技术;导出烟雾插入损耗特性测量的计算公式;
The photoelectrical receiver output signal of scattering photoelectrical smoke detector was relevant to light source radiation power, wavelength, particle thickness, particle diameter, scattering angle, scattering volume and the light area of photosensitive unit. 散射光型光电感烟探测器的光电接收器输出信号,与光源辐射功率和波长、粒子浓度、粒径、散射角、散射体积和光敏元件的受光面积等有关。
Study shows the possibility of electronic receiver to couple considerable lightning electromagnetic energy under lightning radiation circumstance, and in this instance the strong nonlinearity behavior makes against the normal operation of microwave amplifier generally under small-signal condition. 相关研究表明,在雷电电磁辐射环境下电子系统接收机可能耦合较大的雷电电磁能量,将会引起微波放大器表现出强烈的非线性特性,这对于常规工作条件下的微波放大器来说是十分不利的。
Shuts off the noise dissemination way, the noise source with is isolated by the receiver, and reduces the radiating surface including the noise reduction transmission efficiency the radiation efficiency; 切断噪声传播途径,即将噪声源与被接受者隔离,包括降低噪声的传递效率和降低辐射面的辐射效率;
A non-touch data collection on chaos phenomena in Pohl resonator system is performed by using photoelectric mouse as a receiver to detect the laser radiation reflected diffusely from a metal surface. 用半导体激光器作为光源,利用鼠标接收经由金属物体漫反射的激光,实现了对玻尔共振仪产生混沌现象的数据进行非接触的测量过程。
The Design of the Self-Adjusting of the Ground Receiver Channel for Microwave Radiation Scale-Field 微波辐射定标场地面接收机通道自校准设计
The broadband digital receiver provides preliminary parameters measurements of radiation sources for electronic detection signal processing. The broadband digital receiver is the key module of miniature radar detection system and is also the key procedure assure the detection system performance. 宽带数字接收机为电子侦察信号处理提供初步的辐射源参数测量结果,是小型化雷达侦察系统的核心模块,是保证侦察系统性能指标的重要环节。
Therefore, we can reduce the sensitivity of the receiver, improve of the resolution of the imaging system. First, this paper briefly introduces the key technologies of blackbody radiation and meter-wave principle imaging, and the difference between ellipsoid antenna and traditional focusing antenna. 因此,可以降低对接收机灵敏度的要求,提高系统的分辨率。首先,本论文简介了黑体辐射原理及和毫米波成像的关键技术,其中包括扫描原理和采样频率的确定。