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1. 发明授权

US06097303A Modular input/output system with redundancy and testing 失效
标题翻译：具有冗余和测试功能的模块化输入/输出系统
公开(公告)号：US06097303A
公开(公告)日：2000-08-01
申请号：US846400
申请日：1997-04-30
申请人： Kenneth G. Lunz , Daniel Louis Simon
发明人： Kenneth G. Lunz , Daniel Louis Simon
IPC分类号： G05B9/03 , G05B23/02 , H05K7/14
CPC分类号： H05K7/1451 , G05B23/0213 , G05B9/03 , H05K7/1465 , H05K7/1484
摘要： A modular input/output (I/O) system for field wiring includes a plurality of base units into which electronics modules providing appropriate signal processing are plugged. A backplane in each base unit provides leads between the electronics module and associated terminals to which the field wiring is connected and also hosts a communications bus through which the electronics modules on serially connected base members communicate with a controller. Switching modules plugged into some of the base members selectively switch field signals applied to terminals for an associated electronics module to another electronics module for redundancy, or switch test signals into the associated electronics module in place of the field wiring signals. The test signals are generated by yet another of the electronics modules while still another electronics module generates control signals for the switching modules.
摘要翻译：用于现场布线的模块化输入/输出（I / O）系统包括多个基本单元，其中提供适当的信号处理的电子模块被插入其中。每个基本单元中的背板在电子模块和现场布线所连接的相关端子之间提供引线，并且还承载通信总线，串行连接的基座部件上的电子模块通过该通信总线与控制器通信。插入到一些基座部件中的开关模块有选择地将施加到相关联的电子模块的端子的场信号切换到另一个电子模块用于冗余，或者将测试信号切换到相关联的电子模块中以代替现场布线信号。测试信号由另一个电子模块产生，而另一个电子模块产生用于开关模块的控制信号。

2. 发明授权

US5096658A Detector path insertion verification system 失效
标题翻译：检测器路径验证系统
公开(公告)号：US5096658A
公开(公告)日：1992-03-17
申请号：US494414
申请日：1990-03-16
申请人： Kenneth G. Lunz , Kevin P. Litzinger
发明人： Kenneth G. Lunz , Kevin P. Litzinger
IPC分类号： G21C17/10 , G21C17/108
CPC分类号： G21C17/108
摘要： A detector path insertion verification system for use with flux mapping of a pressurized water nuclear reactor uses a transfer insertion switch at the input of each multiple-path selector to detect insertion of a detector into the multiple-path selector. No insertion switches are used at the output of the multiple-path selectors; instead software is used to verify the position of the multiple-path selectors. The sensed actual position of each multiple-path selector is monitored as the multiple-path selector is rotated to verify that the sensed actual position passes through the expected sequence of positions in an expected amount of time. The multiple-path selectors are rotated until a sensed actual position is equal to a desired position and rotation is stopped. After the passage of a short period of time, the actual and desired positions are again compared and if equal, insertion is begun. When the transfer insertion switch detects insertion of the detector into the multiple-path selector, the actual and desired positions are again checked and insertion of the detector is continued only if the actual and desired positions are still equal.

3. 发明授权

US5078956A Neutron flux detector distribution system with improved drivability 失效
标题翻译：具有改进性能的NEUTRON FLUX检测器分配系统
公开(公告)号：US5078956A
公开(公告)日：1992-01-07
申请号：US560789
申请日：1990-07-31
申请人： Kenneth G. Lunz
发明人： Kenneth G. Lunz
IPC分类号： G21C17/10 , G21C17/108
CPC分类号： G21C17/108
摘要： A flux mapping system for a nuclear reactor uses a detector having an outer diameter approximately fifteen percent smaller than the inner diameter of distribution tubing through which it passes and a length less than eight percent of the minimum bend radius of the tubing. Frictionless limit switches are used in the flux mapping system to further reduce friction against cables which drive the detectors through the distribution tubing. In combination, these dimensions and switch changes result in a fifty percent improvement in driving force at the thimbles into the core of the nuclear reactor.

4. 发明授权

US5179515A Neutron flux detector positioning 失效
标题翻译： NEUTRON检波器定位
公开(公告)号：US5179515A
公开(公告)日：1993-01-12
申请号：US494510
申请日：1990-03-16
申请人： Kenneth G. Lunz , Kevin P. Litzinger
发明人： Kenneth G. Lunz , Kevin P. Litzinger
IPC分类号： G21C17/10 , G21C17/108
CPC分类号： G21C17/108
摘要： Fine and coarse resolvers are used to detect the length of cable withdrawn from a spool to provide an indication of the position of a neutron flux detector at the end of the cable. The position indicated by the resolvers when the neutron flux detector passes a withdrawn limit switch is stored in nonvolatile memory as an offset when the cable is first installed in a flux mapping system. Thereafter, the position indicated by the resolvers, each time the neutron flux detector passes the withdraw limit switch, is compared to the offset. If the difference between the two is significant, a warning is generated, but operation of the flux mapping system continues. During movement of the flux detector, the change in position between two readings of the resolvers is divided by an amount of time measured by a programmable interval timer to determine average speed. A warning is generated if the average speed is outside an expected range. The expected range may vary depending upon the position of the detector. The position indicated by the resolvers when the flux detector indicates a reduction in neutron flux due to the presence of grid straps is compared with predetermined grid strap positions to determine an accurate top of thimble limit.

5. 发明授权

US5164895A Neutron flux mapping system for nuclear reactors 失效
标题翻译：用于核反应堆的NEUTRON FLUX映射系统
公开(公告)号：US5164895A
公开(公告)日：1992-11-17
申请号：US494465
申请日：1990-03-16
申请人： Kenneth G. Lunz , Kevin P. Litzinger
发明人： Kenneth G. Lunz , Kevin P. Litzinger
IPC分类号： G21C17/10 , G05B19/042 , G21C17/108
CPC分类号： G21C17/108 , G05B19/0421
摘要： A plurality of flux map sequences are stored in nonvolatile memory to control a flux mapping operation in a nuclear reactor. The flux map sequences are accessed by a host controller which receives instructions from either a local man machine interface or a remote man machine interface. A system control unit determines which of the man machine interfaces is active and also provides the ability to select manual control of detector drivers. A selected flux map sequence is displayed and can be modified and then restored or executed. The modifications to the flux map sequence may include deleting a detector driver from the flux mapping operation and then automatically redistributing the thimbles originally used by the deleted detector driver to be used by the remaining detector drivers. The man machine interfaces are preferably independent computer systems each connected to receive shared data transmitted from the host controller and capable of performing analysis on the flux map data including generating calibration data for a plant protection system. The flux mapping system also includes a diagnostic processor for monitoring the operation of the host controller and ensuring that the detector drivers receive instructions to return to a safe condition if there is a malfunction of the host controller.

6. 发明授权

US4963315A Low level detector monitor 失效
标题翻译：低电平检测器监视器
公开(公告)号：US4963315A
公开(公告)日：1990-10-16
申请号：US358755
申请日：1989-05-30
申请人： Fred H. Bednar , Kenneth G. Lunz
发明人： Fred H. Bednar , Kenneth G. Lunz
IPC分类号： G01T3/00 , H01J47/12
CPC分类号： H01J47/1233 , G01T3/00
摘要： A method and apparatus for monitoring the neutron flux in the core of a nuclear reactor by means of a neutron detector which is composed of two electrodes between which a d.c. bias voltage is applied and which has a greater neutron sensitivity when the d.c. bias voltage is applied with one polarity than with the opposite polarity, which involves operating the nuclear reactor at a power level in the vicinity of zero, and applying a d.c. bias level with the one polarity between the detector electrodes and measuring the neutron-induced current flowing through the detector electrodes.To permit reversal of the bias voltage polarity, a safety interlock is provided to permit this to occur only if the bias voltage has been brought below a selected level.
摘要翻译：一种用于通过中子检测器监测核反应堆核心中的中子通量的方法和装置，该中子检测器由两个电极组成，施加偏置电压，并且当直流电压具有更大的中子灵敏度。施加一个极性而不是相反极性的偏置电压，其涉及在零附近的功率电平下操作核反应堆，并施加直流。检测器电极之间具有一个极性的偏置电平，并测量流经检测器电极的中子感应电流。为了允许偏置电压极性的反转，提供安全互锁以允许仅当偏置电压低于所选电平时才发生。

7. 发明授权

US5251242A Bi-metallic, self powered, fixed incore detector, and method of calibrating same 失效
标题翻译：双金属，自供电，固定式检测器及其校准方法
公开(公告)号：US5251242A
公开(公告)日：1993-10-05
申请号：US902141
申请日：1992-06-22
申请人： Albert J. Impink, Jr. , Louis R. Grobmyer , Kenneth G. Lunz , Stephen N. Tower
发明人： Albert J. Impink, Jr. , Louis R. Grobmyer , Kenneth G. Lunz , Stephen N. Tower
IPC分类号： G01T3/00 , G21C17/108 , G21C17/00
CPC分类号： G01T3/006 , G21C17/108
摘要： The present invention is a detector assembly for a nuclear reactor which includes platinum detector segments (30-40) axially distributed end to end within a reactor assembly and vanadium detector segments (42-52) spatially congruent in the same assembly. The vanadium detectors calibrate the platinum detector signals to remove the flux contributions of fission products. A full length vanadium detector (62) and a full length platinum detector (90) can be substituted and used to determine the compensation for the platinum detector segments (30-40). The compensated platinum detector signals, wherein compensation consists of isolating that portion of the total platinum detector signal that is directly proportional to the current local heat deposition rate in the reactor fuel, can be used for reactor core protection purposes.
摘要翻译：本发明是用于核反应堆的检测器组件，其包括在反应器组件内端对端轴向分布的铂检测器段（30-40）和在同一组件中空间上一致的钒检测器段（42-52）。钒检测器校准铂检测器信号以去除裂变产物的助熔剂。可以取代全长钒检测器（62）和全长铂检测器（90），以确定铂检测器段（30-40）的补偿。补偿的铂检测器信号，其中补偿包括隔离与反应堆燃料中的当前局部热沉积速率成正比的总铂检测器信号的一部分，可用于反应堆堆芯保护目的。

8. 发明授权

US4853174A Low level detector monitor 失效
标题翻译：低电平检测器监视器
公开(公告)号：US4853174A
公开(公告)日：1989-08-01
申请号：US105186
申请日：1987-10-06
申请人： Fred H. Bednar , Kenneth G. Lunz
发明人： Fred H. Bednar , Kenneth G. Lunz
IPC分类号： G21C17/108 , G01T1/185 , G01T3/00 , G21C17/00 , H01J47/12
CPC分类号： G01T3/00 , H01J47/1233
摘要： A method and apparatus for monitoring the neutron flux in the core of a nuclear reactor by means of a neutron detector which is composed of two electrodes between which a d.c. bias voltage is applied and which has a greater neutron sensitivity when the d.c. bias voltage is applied with one polarity than with the opposite polarity, which involves operating the nuclear reactor at a power level in the vicinity of zero, and applying a d.c. bias level with the one polarity between the detector electrodes and measuring the neutron-induced current flowing through the detector electrodes.To permit reversal of the bias voltage polarity, a safety interlock is provided to permit this to occur only if the bias voltage has been brought below a selected level.
摘要翻译：一种用于通过中子检测器监测核反应堆核心中的中子通量的方法和装置，该中子检测器由两个电极组成，施加偏置电压，并且当直流电压具有更大的中子灵敏度。施加一个极性而不是相反极性的偏置电压，其涉及在零附近的功率电平下操作核反应堆，并施加直流。检测器电极之间具有一个极性的偏置电平，并测量流经检测器电极的中子感应电流。为了允许偏置电压极性的反转，提供安全互锁以允许仅当偏置电压低于所选电平时才发生。

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