一种新型彩色显像管会聚测量系统

本在系统分析会聚测量方法的基础上，着重对我们开发的一套新型的会聚测量设备进行了介绍和研究。该系统采用栅极脉冲电流、脉冲偏转，用微移动法消除荫罩影响修复光点。整套系统由计算机控制、采集、分析。该系统很好地满足了CRT研究开发的需要。     

高精细数字会聚校正系统

数字会聚校正使1%的会聚精度提高到0.1%以上。本文叙述了数字会聚校正系统的设计要求,工作原理以及设计计算,给出了在投影电视上的试验结果,最后,指出了今后发展的方向。     

快速凝固高温Al—Fe—Mo—Si—Zr—Ti合金强化相结构及其热粗化行为

用Ｚ－ｒａｙ衍射、系统倾转、会聚速，能谱分析确定了Ａｌ－Ｆｅ－Ｍｏ－Ｓｉ－Ｚｒ－Ｔｉ合金强化相的晶体结构，点阵常数、空间群及化学式，系统研究了该强化相在４２７℃、４７７℃，５２７℃时的粗化规律及机制，以及稀土元素Ｇｄ，Ｙ对该强化相热粗化行为的影响。     

快速凝固高温Al－Fe－Mo－Si－Zr－Ti合金强化相结构及其热粗化行为

用Ｘ－ｒａｙ衍射、系统倾转、会聚束，能谱分析确定了Ａｌ－Ｆｅ－Ｍｏ－Ｓｉ－Ｚｒ－Ｔｉ合金强化相的晶体结构，点阵常数、空间群及化学式，系统研究了该强化相在４２７℃、４７７℃，５９７℃时的粗化规律及机制，以及稀土元素Ｇｄ、Ｙ对该强化相热粗化行为的影响。     

光点与会聚测试系统的设备需求与配置

光点测试和会聚测试是验证CPT电子枪偏转线圈性能的重要手段之一。本文提出基于合理的测试方法、有效适当的测试设备 ,建立最佳的测试系统。针对光点测试和会聚测试系统中的各种设备 ,介绍它们的应用原理及应用效果 ,从而了解在测试CPT光点质量和会聚误差过程中测试系统的设计原理及设备配置原理     

光点与会聚测试系统的设备需求与配置

光点测试和会聚测试是验证CPT电子枪偏转线圈性能的重要手段之一。本提出基于合理的测试方法、有效适当的测试设备，建立最佳的测试系统。针对光点测试和会聚测试系统中的各种设备，介绍它们的应用原理及应用效果，从而了解在测试CPT光点质量和会聚误差过程中测试系统的设计原理及设备配置原理。     

彩色CRT偏转误差及测量方法的研究

彩色CRT的偏转误差主要包括会聚误差和光栅误差,测量会聚误差和光栅误差是验证偏转线圈偏转特性的重要手段.会聚误差取决于R/G/B三束在屏上相互之间的距离量,而G束形状则决定了屏上光栅的误差量.基于彩色CRT光点测试系统所配置的一种高精度且又灵活的多功能测试系统,其测量对象是经过偏转线圈自身会聚及光栅误差校正的"裸管"."双光点测量法"的应用可完全消除会聚误差测量中的驱动抖动误差,而运用"单线测量法"可使光栅误差测量过程最简化.因此,测试系统能最大限度地重复运用测量设备,并以最简化的系统配置实施精确的测量.     

会聚光红外光学系统及其光控系统设计

针对平行光红外光学系统存在光斑大、能量损失大等不足,设计了主要用于中远红外带通滤光片膜厚监控的会聚光红外光学系统及其光控系统.会聚光红外光学系统采用双凸会聚透镜结构设计,系统的球差和色差都较小,且物距可调,适用于不同类型的光学镀膜机.相对于平行光红外光学系统,会聚光红外光学系统能有效地提高系统的信噪比;膜厚监控稳定、重复性好.     

自会聚偏转系统中磁滞损耗的估测

通过空间磁场和感应电压的测量 ,对自会聚偏转系统偏转磁芯中的二极场、六极场磁通密度的分布进行了计算 ,并根据磁滞损耗的经验公式对Philips 17英寸CMT的磁滞损耗进行了估测。该方法适用于估测高次谐波场对磁滞损耗的影响 ,降低能量损耗的偏转系统磁芯结构的优化 ,磁性材料的选择等。     

海洋深海会聚区发生概率分析

根据海洋声速分布特点,以南海深海区为例,利用深度余量和其变化量与会聚现象发生概率之关系,对南海海区的会聚现象发生情况进行了研究。为了未来海洋探测以及海战的战场准备,我们亟需对南海声线传播规律进行研究和探索,以便为水声探测器材的使用提供了决策依据。本文这一从南海声速入手,对南海深海会聚区的发生情况进行相应的预报。     

Determination of plasma parameters with a probing magnetic field pulse

An experimental technique for the determination of electric conductivity and temperature of plasma is presented. The technique is based on comparing the signals that are produced by a pulsed magnetic field in the circuits of two probes located within the studied plasma and outside of it. The proposed technique for the measurement of plasma parameters was tested experimentally in the context of measuring the electric conductivity and temperature of plasma flux formed in cathode spots of a high-current pulsed vacuum arc with a magnesium cathode.     

物体表面色的双光束平行检测

介绍了一种用于物体表面色检测的双光束多通道系统,采用脉冲光源模拟标准Ｄ６５有,由ＳＰＤ对颜色进行光谱的平探测,经过精密的光谱定标和光度定标,并结合软件功能,实现了物体色的快速精测量。     

Measurement of total energy flux density at a substrate during TiOx thin film deposition by using a plasma jet system

The total energy flux density delivered to an electrically isolated substrate in a low-pressure pulsed DC hollow cathode plasma jet sputtering system during TiO₂ thin film deposition has been quantified. The plasma source was operated in constant average current mode and in a mixture of argon and oxygen or only in pure argon working gas. A titanium nozzle served as the hollow cathode. The total energy flux density measurements were made using a planar calorimeter probe. The main results from the calorimeter probe showed clearly that the total energy flux density at the electrically isolated substrate decreases significantly with duty cycle from 100% (DC mode) to 10% at a given pulsing frequency 2.5 kHz. A local maximum at duty cycle 60% for only pure argon operation has been observed. In addition, the voltage waveforms on the hollow cathode and before the ballast resistor have been saved for pulsed DC measurements for both pure argon and argon + oxygen mixture. A similar transient phenomenon on the cathode voltage and discharge current as observed recently in mid-frequency pulsed DC magnetron discharge has been discovered in the hollow cathode plasma jet sputtering system. We can conclude from these preliminary measurements that the main asset of the pulsed DC hollow cathode plasma jet discharge as distinct from the DC driving of the same plasma system lies in the possibility to reduce or to increase energy influx on the floating substrate within the change of duty cycle.     

抗强干扰快速测量真空规管及仪器的研究

托卡马克装置中存在强磁场、强电场,放电过程中真空度变化迅速。为满足这种特殊环境的真空测量要求,开展了抗强干扰快速测量真空规及仪器的研究。快规使用平板电极结构,在普通热阴极电离规管的基础上增加了调制极;仪器电路除完成稳发射、为加速极供电、离子流放大等基本功能外,它可以提供更大的灯丝电流,为调制极提供周期性脉冲电压,离子流和电子流放大器、调制/解调电路和锁相环电路相互配合,确保快速准确测量。仪器的主控制单元以微处理器为核心,可以设定系统运行的相关参数,离子流、发射电流、灯丝电流可供主控单元采集,以配合完成自动调整和相应控制。     

Study of the direct current breakage process in an external nonuniform magnetic field

We study experimentally the influence of an external nonuniform magnetic field with transverse and longitudinal components on the electric characteristics, plasma configuration, and cathode spot arrangement of vaccum-arc discharge. It is revealed that for a cylindrical cathode, cathode spots are nonuniformly distributed on the cathode surface, the spot configuration has no axial symmetry, and the arrangement of spots changes in time depending on the induction value of the external pulsed magnetic field. With an increase in induction, spots (on average) are arranged closer to the cathode, i.e., displaced to the region of weaker transverse field. For two cathode geometries, the probabilities of direct current breakage depending on the induction of the external nonuniform magnetic field are experimentally determined. To determine the conditions of current breakage, a three-dimensional mathematical model of ion motion is suggested and the current breakage criterion is formulated. The trajectories of fast cathode ions in an electrode system with a ring cathode have been calculated using the model. Calculations were performed in a nonuniform magnetic field, the radial and axial components of which have been measured experimentally. It is shown that conditions of current breakage determined with this criterion agree with the results of experiment.     

内偏转彩色显像管

对内偏转彩色显像管技术进行了详细论述。分析了材料的真空放气特性对阴极寿命的影响。由于偏转线圈放在管内 ,不能用传统的管球与线圈装配程序进行装配。为了得到好的着屏和会聚质量 ,设计了特殊的装配步骤。给出了 14英寸和 2 1英寸电视机 (TVTs)用以及 2 1英寸彩色监视器 (CMTs)用内偏转管的分析测试结果。     

双光路多通道颜色快速计测系统

介绍一种用于物体色快速测量的双光路多通道系统。     

An X-ray technique for investigation of the explosive-emission cathode surface

We present the results of pulsed X-ray radiography of an electron beam spot on the anode of a diode employing an explosive-emission cathode. It is demonstrated that this technique can provide objective information on the character of emissive centers on the cathode surface and can be used for preliminary evaluation of the possibility of using a particular explosive-emission cathode type for the formation of desired electron beams in a given diode.