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公开(公告)号：US11011280B2
公开(公告)日：2021-05-18
申请号：US15066323
申请日：2016-03-10
发明人： Jorge V. Carvajal , Michael D. Heibel , Nicola G. Arlia , Melissa M. Walter , Robert W. Flammang , Michael A. James , David M. Sumego
IPC分类号： G21C17/022 , G21C17/032 , G21C17/112
摘要： A system that measures the temperature distribution of the reactor coolant flowing through the hot leg or cold leg pipes by measuring the speed of sound time delay. This concept uses radiation hardened and temperature tolerant ultrasonic signal drivers based on vacuum micro-electronic technology. The system employs ultrasonic signals propagated through water, and relies on the characteristic that the speed of sound changes as the density and temperature of the water changes. Thus, a measured difference in the speed of sound in water may be directly correlated to a temperature change of the water.
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公开(公告)号：US10706977B2
公开(公告)日：2020-07-07
申请号：US14996667
申请日：2016-01-15
发明人： Michael A. James , Jorge V. Carvajal , Michael D. Heibel , Nicola G. Arlia , Robert W. Flammang , David M. Sumego , Melissa M. Walter
IPC分类号： G21C17/00 , G21C17/108 , G21C17/116 , G21C13/02
摘要： Apparatus for amplifying low level signals within a nuclear plant's containment building, derived from the ex-core nuclear instrumentation system. The system employs vacuum micro-electronic devices in place of conventional pre-amplifier assemblies to position the pre-amplifier assemblies closer to and within the vicinity of the ex-core detector outputs.
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公开(公告)号：US10020081B2
公开(公告)日：2018-07-10
申请号：US14996439
申请日：2016-01-15
发明人： Jorge V. Carvajal , Michael D. Heibel , Nicola G. Arlia , Robert W. Flammang , David M. Sumego , Michael A. James , Melissa M. Walter
CPC分类号： G21C17/12 , G01S7/52006 , G01S15/10 , G01S15/88 , G21C7/36
摘要： A pulsed sonar-based wireless rod position indication system that utilizes nuclear radiation and high temperature tolerant hardware. The pulsed sonar-based rod position indication system can precisely locate the rod position by measuring the time of flight of a transmitted signal and by using the phase and amplitude information of the same transmitted signal. Primary and secondary antenna probes located in the interior of the control rod drive rod travel housing and full hardware redundancy provide for improved accuracy. The time of flight, phase and amplitude raw signals are inputted to a wireless data transmitter capable of sending the raw signals to a receiver antenna located elsewhere inside a containment for further processing.
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公开(公告)号：US20170206990A1
公开(公告)日：2017-07-20
申请号：US14996439
申请日：2016-01-15
发明人： Jorge V. Carvajal , Michael D. Heibel , Nicola G. Arlia , Robert W. Flammang , David M. Sumego , Michael A. James , Melissa M. Walter
CPC分类号： G21C17/12 , G01S7/52006 , G01S15/10 , G01S15/88
摘要： A pulsed sonar-based wireless rod position indication system that utilizes nuclear radiation and high temperature tolerant hardware. The pulsed sonar-based rod position indication system can precisely locate the rod position by measuring the time of flight of a transmitted signal and by using the phase and amplitude information of the same transmitted signal. Primary and secondary antenna probes located in the interior of the control rod drive rod travel housing and full hardware redundancy provide for improved accuracy. The time of flight, phase and amplitude raw signals are inputted to a wireless data transmitter capable of sending the raw signals to a receiver antenna located elsewhere inside a containment for further processing.
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公开(公告)号：US11238996B2
公开(公告)日：2022-02-01
申请号：US16840498
申请日：2020-04-06
发明人： Michael D. Heibel , Jorge V. Carvajal , Nicola G. Arlia , Melissa M. Walter , Robert W. Flammang , Michael A. James , David M. Sumego
IPC分类号： G21C17/022 , G21C17/112 , G01S15/88 , G01S15/89
摘要： A method and a system for performing real-time, continuous, measurements of the boron concentration in the water entering a nuclear reactor coolant system. The invention utilizes knowledge of the impact that boron contained in liquid water has on the attenuation of acoustic or ultrasonic waves. This information, coupled with radiation damage resistant and high temperature operability capable transmitter and receiver equipment, provides the means to place the measurement system sensors and signal processing electronics on the reactor coolant system charging flow piping or the hot leg or cold leg of the reactor coolant loop. This will allow the reactor operator to directly monitor both the reactor coolant system boron concentration value and detect changes in the reactor coolant system boron concentration relative to a reference value as they occur.
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6.发明申请公开(公告)号：US20170263342A1
公开(公告)日：2017-09-14
申请号：US15066607
申请日：2016-03-10
发明人： Michael D. Heibel , Jorge V. Carvajal , Nicola G. Arlia , Melissa M. Walter , Robert W. Flammang , Michael A. James , David M. Sumego
IPC分类号： G21C17/022 , G21C17/108 , G21C17/112
CPC分类号： G21C17/022 , G21C17/112
摘要： A method and a system for performing real-time, continuous, measurements of the boron concentration in the water entering a nuclear reactor coolant system. The invention utilizes knowledge of the impact that boron contained in liquid water has on the attenuation of acoustic or ultrasonic waves. This information, coupled with radiation damage resistant and high temperature operability capable transmitter and receiver equipment, provides the means to place the measurement system sensors and signal processing electronics on the reactor coolant system charging flow piping or the hot leg or cold leg of the reactor coolant loop. This will allow the reactor operator to directly monitor both the reactor coolant system boron concentration value and detect changes in the reactor coolant system boron concentration relative to a reference value as they occur.
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公开(公告)号：US20170263341A1
公开(公告)日：2017-09-14
申请号：US15066323
申请日：2016-03-10
发明人： Jorge V. Carvajal , Michael D. Heibel , Nicola G. Arlia , Melissa M. Walter , Robert W. Flammang , Michael A. James , David M. Sumego
IPC分类号： G21C17/022 , G21C17/032 , G21C15/257
CPC分类号： G21C17/022 , G21C17/032 , G21C17/112
摘要： A system that measures the temperature distribution of the reactor coolant flowing through the hot leg or cold leg pipes by measuring the speed of sound time delay. This concept uses radiation hardened and temperature tolerant ultrasonic signal drivers based on vacuum micro-electronic technology. The system employs ultrasonic signals propagated through water, and relies on the characteristic that the speed of sound changes as the density and temperature of the water changes. Thus, a measured difference in the speed of sound in water may be directly correlated to a temperature change of the water.
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公开(公告)号：US20170206989A1
公开(公告)日：2017-07-20
申请号：US14996667
申请日：2016-01-15
发明人： Michael A. James , Jorge V. Carvajal , Michael D. Heibel , Nicola G. Arlia , Robert W. Flammang , David M. Sumego , Melissa M. Walter
IPC分类号： G21C17/108 , G21C1/08
CPC分类号： G21C17/108 , G21C13/02 , G21C17/116
摘要： Apparatus for amplifying low level signals within a nuclear plant's containment building, derived from the ex-core nuclear instrumentation system. The system employs vacuum micro-electronic devices in place of conventional pre-amplifier assemblies to position the pre-amplifier assemblies closer to and within the vicinity of the ex-core detector outputs.
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