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1. 发明申请

US20080016960A1 Liquid level sensor using thick film substrate 有权
标题翻译：液位传感器采用厚膜底材
公开(公告)号：US20080016960A1
公开(公告)日：2008-01-24
申请号：US11489249
申请日：2006-07-19
申请人： Bernd D. Zimmermann , Tung-Sheng Yang , Thomas C. Anderson
发明人： Bernd D. Zimmermann , Tung-Sheng Yang , Thomas C. Anderson
IPC分类号： G01F23/00
CPC分类号： G01F23/22 , G01F23/247 , G01F23/248 , G05D9/12
摘要： In many applications, where the level of a liquid needs to be monitored (and possibly controlled), it is not necessary to provide a continuous (analog) liquid level signal, but limit sensing to one (or two) discrete levels over a small level range. In this case, a ceramic substrate sensor with discrete thermistor/heater pairs provides necessary information to control the level of the fluid. Protection of the substrate from liquid (and potential contaminants) is accomplished by coating the surface with an inert glass (“glaze”) layer and/or polymer layer (e.g., “Parylene”). Packaging of the coated substrate is accomplished by protective base, epoxy, and slosh shield. Cost can be significantly reduced over a prior art multiple thermocouple based sensor design, since discrete electronic components are avoided or reduced. Also, the number of pins, and therefore electrical connections, can be significantly reduced.
摘要翻译：在许多应用中，液体的液位需要被监控（并且可能被控制），不需要提供连续的（模拟）液位信号，而是将感测限制在一个（或两个）离散水平的小水平上范围。在这种情况下，具有分立热敏电阻/加热器对的陶瓷基板传感器提供控制流体水平的必要信息。通过用惰性玻璃（“釉”）层和/或聚合物层（例如“Parylene”）涂覆表面来实现对液体（和潜在污染物）的保护。涂覆的基材的包装由保护基，环氧树脂和震动屏蔽完成。由于离散的电子部件被避免或减少，所以成本可以比现有技术的基于多个热电偶的传感器设计大大降低。此外，可以显着地减少引脚的数量，从而电连接数。

2. 发明授权

US06342997B1 High sensitivity diode temperature sensor with adjustable current source 失效
标题翻译：高灵敏度二极管温度传感器，可调电流源
公开(公告)号：US06342997B1
公开(公告)日：2002-01-29
申请号：US09558918
申请日：2000-04-26
申请人： Prasad S. Khadkikar , James A. Tennant , Bernd D. Zimmerman , David W. Reynolds , Thomas C. Anderson
发明人： Prasad S. Khadkikar , James A. Tennant , Bernd D. Zimmerman , David W. Reynolds , Thomas C. Anderson
IPC分类号： H02H504
CPC分类号： G01K7/01 , G01K3/005
摘要： A temperature control circuit provides for optical isolation, dry start protection, dedicated load control, manual reset, and relay control in hot water heaters and related applications. The control circuit removes power from a load at a first temperature, and includes a first optical isolation device, a first diode temperature sensor, and a first switching mechanism. The first optical isolation device controls operation of a power source, where the power source is provided to the load, such as a hot water heater heating element. The first diode temperature sensor is biased to provide a switching signal at the first temperature. The first switching mechanism is disposed between the first diode temperature sensor and the first optical isolation device, where the first switching mechanism disengages operation of the first optical isolation device in response to the switching signal. The control circuit can further include a high limit cycling circuit for disengaging operation of the power source at the second temperature. A latching circuit can be used to maintain the temperature control circuit in a switched state until a manual reset occurs.
摘要翻译：温度控制电路提供热水加热器和相关应用中的光隔离，干启动保护，专用负载控制，手动复位和继电器控制。控制电路在第一温度从负载中去除电力，并且包括第一光隔离装置，第一二极管温度传感器和第一开关机构。第一光隔离装置控制电源的操作，其中电源被提供给诸如热水器加热元件的负载。第一二极管温度传感器被偏置以在第一温度提供开关信号。第一切换机构设置在第一二极管温度传感器和第一光隔离装置之间，其中第一切换机构响应于切换信号使第一光隔离装置的操作脱离。控制电路还可以包括用于在第二温度下分离电源的操作的上限循环电路。可以使用锁存电路来将温度控制电路维持在切换状态，直到手动复位发生。

3. 发明授权

US07596998B2 Liquid level sensor using thick film substrate 有权
标题翻译：液位传感器采用厚膜底材
公开(公告)号：US07596998B2
公开(公告)日：2009-10-06
申请号：US11489249
申请日：2006-07-19
申请人： Bernd D. Zimmermann , Tung-Sheng Yang , Thomas C. Anderson
发明人： Bernd D. Zimmermann , Tung-Sheng Yang , Thomas C. Anderson
IPC分类号： G01F23/00
CPC分类号： G01F23/22 , G01F23/247 , G01F23/248 , G05D9/12
摘要： In many applications, where the level of a liquid needs to be monitored (and possibly controlled), it is not necessary to provide a continuous (analog) liquid level signal, but limit sensing to one (or two) discrete levels over a small level range. In this case, a ceramic substrate sensor with discrete thermistor/heater pairs provides necessary information to control the level of the fluid. Protection of the substrate from liquid (and potential contaminants) is accomplished by coating the surface with an inert glass (“glaze”) layer and/or polymer layer (e.g., “Parylene”). Packaging of the coated substrate is accomplished by protective base, epoxy, and slosh shield. Cost can be significantly reduced over a prior art multiple thermocouple based sensor design, since discrete electronic components are avoided or reduced. Also, the number of pins, and therefore electrical connections, can be significantly reduced.
摘要翻译：在许多应用中，液体的液位需要被监控（并且可能被控制），不需要提供连续的（模拟）液位信号，而是将感测限制在一个（或两个）离散水平的小水平上范围。在这种情况下，具有分立热敏电阻/加热器对的陶瓷基板传感器提供控制流体水平的必要信息。通过用惰性玻璃（“釉”）层和/或聚合物层（例如“Parylene”）涂覆表面来实现对液体（和潜在污染物）的保护。涂覆的基材的包装由保护基，环氧树脂和震动屏蔽完成。由于离散的电子部件被避免或减少，所以成本可以比现有技术的基于多个热电偶的传感器设计大大降低。此外，可以显着地减少引脚的数量，从而电连接数。

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