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1. 发明申请

US20100213379A1 Self Powered Sensor with Radioisotope source 有权
标题翻译：带有放射性同位素源的自供电传感器
公开(公告)号：US20100213379A1
公开(公告)日：2010-08-26
申请号：US12441832
申请日：2007-09-18
申请人： Amit Lal , Rajesh Duggirala , Mvs Chandrasekhar
发明人： Amit Lal , Rajesh Duggirala , Mvs Chandrasekhar
IPC分类号： G01T3/08 , H01L31/102 , G01T1/24 , G01R27/26
CPC分类号： G21H5/00 , G01T1/2018 , G01T3/06 , G01T7/00
摘要： A self-powered sensor (e.g., 100, 180, 220, 400) can wake-up systems requiring a trigger signal to wake-up circuits or systems in power-sleep mode, conserving the battery power for emergency computations and communications. In a humidity sensor embodiment 100, radioisotope generated voltage biases are employed to power sensor capacitors to realize self-powered sensors. A first self-powered capacitor biasing architecture 160 is based on changes in the leakage resistance of the polymer capacitor 110, and a second self-powered capacitor biasing architecture 140 uses changes in the capacitance of the polymer capacitor. Another sensor embodiment uses changes in the capacitance or leakage resistance of the sensor capacitor to modulate conductance of a MOSFET 114, realizing an easily readable electronic output signal. A temperature sensor embodiment 180 and a MEMS cantilever structure based fissile material proximity sensor embodiment 400 are also disclosed.
摘要翻译：自供电传感器（例如，100,180,220,400）可以唤醒需要触发信号的系统以唤醒电源或电源睡眠模式下的系统，从而节省用于紧急计算和通信的电池电力。在湿度传感器实施例100中，使用放射性同位素产生的电压偏压来为传感器电容器供电以实现自供电传感器。第一自供电电容器偏置架构160基于聚合物电容器110的耐漏电流的变化，第二自供电电容器偏置架构140使用聚合物电容器的电容的变化。另一传感器实施例使用传感器电容器的电容或漏电阻的变化来调制MOSFET 114的电导，实现易于读取的电子输出信号。还公开了温度传感器实施例180和基于MEMS悬臂结构的裂变材料接近传感器实施例400。

2. 发明授权

US08309942B2 Self-powered environmental sensor with wake-up circuitry 有权
标题翻译：具有唤醒电路的自供电环境传感器
公开(公告)号：US08309942B2
公开(公告)日：2012-11-13
申请号：US12441832
申请日：2007-09-18
申请人： Amit Lal , Rajesh Duggirala , Mvs Chandrasekhar
发明人： Amit Lal , Rajesh Duggirala , Mvs Chandrasekhar
IPC分类号： G21G4/00
CPC分类号： G21H5/00 , G01T1/2018 , G01T3/06 , G01T7/00
摘要： A self-powered sensor (e.g., 100, 180, 220, 400) can wake-up systems requiring a trigger signal to wake-up circuits or systems in power-sleep mode, conserving the battery power for emergency computations and communications. In a humidity sensor embodiment 100, radioisotope generated voltage biases are employed to power sensor capacitors to realize self-powered sensors. A first self-powered capacitor biasing architecture 160 is based on changes in the leakage resistance of the polymer capacitor 110, and a second self-powered capacitor biasing architecture 140 uses changes in the capacitance of the polymer capacitor. Another sensor embodiment uses changes in the capacitance or leakage resistance of the sensor capacitor to modulate conductance of a MOSFET 114, realizing an easily readable electronic output signal. A temperature sensor embodiment 180 and a MEMS cantilever structure based fissile material proximity sensor embodiment 400 are also disclosed.
摘要翻译：自供电传感器（例如，100,180,220,400）可以唤醒需要触发信号的系统以唤醒电源或电源睡眠模式下的系统，从而节省用于紧急计算和通信的电池电力。在湿度传感器实施例100中，使用放射性同位素产生的电压偏压来为传感器电容器供电以实现自供电传感器。第一自供电电容器偏置架构160基于聚合物电容器110的耐漏电流的变化，第二自供电电容器偏置架构140使用聚合物电容器的电容的变化。另一传感器实施例使用传感器电容器的电容或漏电阻的变化来调制MOSFET 114的电导，实现易于读取的电子输出信号。还公开了温度传感器实施例180和基于MEMS悬臂结构的裂变材料接近传感器实施例400。

3. 发明授权

US07301254B1 High efficiency radio isotope energy converters using both charge and kinetic energy of emitted particles 有权
标题翻译：使用发射颗粒的电荷和动能的高效率放射性同位素能量转换器
公开(公告)号：US07301254B1
公开(公告)日：2007-11-27
申请号：US11491024
申请日：2006-07-24
申请人： Amit Lal , Rajesh Duggirala , Hui Li
发明人： Amit Lal , Rajesh Duggirala , Hui Li
IPC分类号： H02N1/00 , H02N2/18 , H01L41/08
CPC分类号： H02N2/181 , G21H1/02 , G21H1/06 , G21Y2002/201 , G21Y2004/30 , H02N2/186
摘要： An electrical energy generator with improved efficiency has a base on which is mounted an elastically deformable micromechanical element that has a section that is free to be displaced toward the base. An absorber of radioactively emitted particles is formed on the base or the displaceable section of the deformable element and a source is formed on the other of the displaceable section or the base facing the absorber across a small gap. The radioactive source emits charged particles such as electrons, resulting in a buildup of charge on the absorber, drawing the absorber and source together and storing mechanical energy as the deformable element is bent. When the force between the absorber and the source is sufficient to bring the absorber into effective electrical contact with the source, discharge of the charge between the source and absorber allows the deformable element to spring back, releasing the mechanical energy stored in the element. An electrical generator of improved efficiency includes a first energy source comprising a piezoelectric transducer secured to the deformable element to convert the released mechanical energy to electrical energy. A second energy source comprises a betavoltaic cell carried on the deformable element or electron collector cantilever beam to provide a direct current (DC) power output that can be added to the piezo-electric circuit's alternating current (AC) power output, such that there is a continuous power output that can be used to provide power to electronic circuits.
摘要翻译：具有提高效率的电能发生器具有基座，其上安装有可弹性变形的微机械元件，该微机械元件具有可自由地朝向底座移位的部分。在可变形元件的基部或可移动部分上形成放射性粒子的吸收体，并且在可移动部分的另一个或面对吸收体的基底上形成源于小间隙的源。放射源发射诸如电子的带电粒子，导致在吸收体上积累电荷，将吸收体和源组合在一起，并随着可变形元件弯曲而存储机械能。当吸收器和源之间的力足以使吸收器与源有效电接触时，源和吸收器之间的电荷的放电允许可变形元件弹回，释放存储在元件中的机械能。具有改进效率的发电机包括第一能量源，其包括固定到可变形元件的压电换能器，以将释放的机械能转换成电能。第二能量源包括携带在可变形元件或电子收集器悬臂梁上的贝塔伏塔尔电池，以提供可以被添加到压电电路的交流（AC）功率输出的直流（DC）功率输出，使得存在可以用于向电子电路提供电力的连续功率输出。

4. 发明申请

US20070273244A1 HIGH EFFICIENCY RADIO ISOTOPE ENERGY CONVERTERS USING BOTH CHARGE AND KINETIC ENERGY OF EMITTED PARTICLES 有权
标题翻译：高效无线电等离子体能量转换器，使用双电荷和发射颗粒的动力学能量
公开(公告)号：US20070273244A1
公开(公告)日：2007-11-29
申请号：US11491024
申请日：2006-07-24
申请人： Amit Lal , Rajesh Duggirala , Hui Li
发明人： Amit Lal , Rajesh Duggirala , Hui Li
IPC分类号： H01L41/00
CPC分类号： H02N2/181 , G21H1/02 , G21H1/06 , G21Y2002/201 , G21Y2004/30 , H02N2/186
摘要： An electrical energy generator with improved efficiency has a base on which is mounted an elastically deformable micromechanical element that has a section that is free to be displaced toward the base. An absorber of radioactively emitted particles is formed on the base or the displaceable section of the deformable element and a source is formed on the other of the displaceable section or the base facing the absorber across a small gap. The radioactive source emits charged particles such as electrons, resulting in a buildup of charge on the absorber, drawing the absorber and source together and storing mechanical energy as the deformable element is bent. When the force between the absorber and the source is sufficient to bring the absorber into effective electrical contact with the source, discharge of the charge between the source and absorber allows the deformable element to spring back, releasing the mechanical energy stored in the element. An electrical generator of improved efficiency includes a first energy source comprising a piezoelectric transducer secured to the deformable element to convert the released mechanical energy to electrical energy. A second energy source comprises a betavoltaic cell carried on the deformable element or electron collector cantilever beam to provide a direct current (DC) power output that can be added to the piezo-electric circuit's alternating current (AC) power output, such that there is a continuous power output that can be used to provide power to electronic circuits.
摘要翻译：具有提高效率的电能发生器具有基座，其上安装有可弹性变形的微机械元件，该微机械元件具有可自由地朝向底座移位的部分。在可变形元件的基部或可移动部分上形成放射性粒子的吸收体，并且在可移动部分的另一个或面对吸收体的基底上形成源于小间隙的源。放射源发射诸如电子的带电粒子，导致在吸收体上积累电荷，将吸收体和源组合在一起，并随着可变形元件弯曲而存储机械能。当吸收器和源之间的力足以使吸收器与源有效电接触时，源和吸收器之间的电荷的放电允许可变形元件弹回，释放存储在元件中的机械能。具有改进效率的发电机包括第一能量源，其包括固定到可变形元件的压电换能器，以将释放的机械能转换成电能。第二能量源包括携带在可变形元件或电子收集器悬臂梁上的贝塔伏塔尔电池，以提供可以被添加到压电电路的交流（AC）功率输出的直流（DC）功率输出，使得存在可以用于向电子电路提供电力的连续功率输出。

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