By establishing the fuzzy set of the energy spectrum , the standard isotope library and the algorithm of fuzzy recognition , a quick automatic qualitative analysis was achieved , and the spectra of three mixed standard radiation sources and three samples of low background were analyzed 通过建立关于未知谱的模糊集合、标准核素库及模糊识别算法，实现了能谱的决速自动定性分析，并对3组混合标准源能谱和3个低本底样品能谱进行了定性分析。
The receiver works on active mode and passive mode in different time . in active mode , the receiver is narrow - band and high sensitive , and if phase - lock technology is used to stabilize receiving frequency . and in passive mode , the receiver is an all - power millimeter wave radiometer with periodic calibration to improve measure precision 此接收机采用分时工作体制，在主动工作方式时为窄带的高灵敏度毫米波接收机，接收机中采用中频锁相技术，简化了毫米波锁相带来的困难；在被动工作方式时为全功率型的毫米波辐射计，这种辐射计在每次测量后都采用两个标准源对辐射计定标，实现周期定标，消除因系统增益波动和有效本机噪声波动带来的测量误差，提高测量测量精度。
In the investigation of the interaction of the us - ui laser pulse with the plasma , a standard - ray source is firstly used to absolutely calibrate lif mermc - luminescence dosimeters ( tlds ) , and the dosimeter are employed as the angular distribution spectrometer and the energy spectrum spectrometer of the hot electrons 在超短超强激光等离子体相互作用的研究中，首次采用137cs邓标准源对lif热释光探测器( tlds )进行了绝对标定。并以此作为电子角分布仪和电子谱仪的探测元件，研究了超短超强激光与等离子体相互作用中超热电子发射的角分布和能量分布。
Electric performance index of the system is given . the ac standard equipment should be 3 - phase output standard resource by which the ac voltage , ac current , power factor , 3 - phase - 3 - line effective power , 3 - phase - 4 - line effective power , reactive power and single phase watt meter , working frequency and phase meter can be examined . the system makes full use of the main computer which has multi function in the examination 给出了电气性能指标，交流标准装置应为三相输出标准源、使其可校验交流电压、交流电流、功率因数、三相三线有功功率、三相四线有功功率、无功及单相电能表，同时可校验工频频率表及相位表，在校验检测中充分发挥主机多能的作用。
Nowdays , domestic ac standard sources are large size , low level , single function and unable programmed control . meanwhile , foreign ac checking instructors are outputting power and very expensive which are not suitable for our country . according to this , we design the system of ac indictor ' s automatic examination 近几年来，国内陆续的交流标准源，存在着体积大、等级低、功能单一、输出功率小和无法程控等问题；国外公司开发的交流校验仪，输出功率很低，无法校验指示仪表，而且价格十分昂贵，不适合我国的国情。
5 . finally , conclusion and the improvement of the system . during the design of this project , our country ' s practical situation are fully considered . using contemporary new apparatus , developed electronic device advanced multi - functional programmable ac standard sources into the computer programmed control . developed the checking equipment which has multil - functions such as check , collect data , mirror caculation and data copy to achieve checking automatic or half - automatic of ac metor . it will make ac indictor ' s check and management to reach a new level 在本课题设计过程中，充分考虑到我国的具体国情，利用当代新器件，研制全电子式、高等级、多功能程控交流标准源，并将标准源与计算机控制相结合，研制出具有校验、数据采集、误差计算和数据打印等功能的校验设备，实现交流仪表的自动化或半自动化校验，使我国交流仪表的校验和管理达到一个新的水平。
After all have done we could get the equation of indicating pointer and long length graduation . and then calculate the distance between the two lines to estimate whether the two lines are superposition under a given threshold . if not superposition the computer will drive the standard power station to a suitable value and estimate again until being superposition 根据拟合出的指针直线方程和长刻线直线方程计算出两者之间的距离,并根据预先设定的阈值,判断两者是否重合,如未重合,则驱动标准源,根据判断更改指针位置,并再次判断,直到重合。
After this amplifier develops successfully , add to multichannel card and linear gate circuit which teacher develops , experiment to the standard source and the sample coal , this amplifier may realize to analyzing accurately to the coal ingredient , we have already used it about two years , it proves this amplifier has the good 该放大器研制成功后,配合导师研制的多道卡和线性门电路,对标准源、样品煤试验。该放大器可以实现对煤质的精确分析,现已连续使用二年多,证明该放大器具有良好性能,达到了预期设计要求。
