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公开(公告)号：US07250777B2
公开(公告)日：2007-07-31
申请号：US11391944
申请日：2006-03-28
IPC分类号： G01R27/08
CPC分类号： G01R27/14 , G01D5/34738 , G01K7/245 , G01K13/002
摘要： A device for measuring a resistance includes a comparator. A D-type flip-flop has its D input connected to the output of the comparator and its latch input connected for receiving a pulse signal at a fixed pulse repetition rate. A reference voltage source is connected to a first of the inputs of the comparator and an integrator is coupled between an output of the flip-flop and the second of the two inputs of the comparator. The integrator includes a resistor whereby the integrator develops a voltage at the second input of the comparator that depends on the pulse repetition rate and on the resistance of the resistor. The comparator, the integrator and the flip-flop are connected in a negative feedback loop such that at steady state the voltage developed by the integrator at the second input of the comparator is substantially equal to the reference voltage.
摘要翻译： 用于测量电阻的装置包括比较器。 D型触发器的D输入连接到比较器的输出端，其锁存器输入端以固定脉冲重复率接收脉冲信号。 参考电压源连接到比较器的第一个输入端，积分器耦合在触发器的输出端和比较器的两个输入端的第二个之间。 积分器包括一个电阻器，积分器在比较器的第二个输入端产生一个取决于脉冲重复率和电阻电阻的电压。 比较器，积分器和触发器连接在负反馈回路中，使得在稳态下，积分器在比较器的第二输入处产生的电压基本上等于参考电压。
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公开(公告)号：US20080319354A1
公开(公告)日：2008-12-25
申请号：US12131220
申请日：2008-06-02
CPC分类号： A61B5/11 , A61B5/4809 , A61B5/4812 , A61B5/681 , A61B5/7232 , A61B2560/0242 , A61B2560/0456 , G01J1/0233 , G01J1/0247 , G01J1/0488 , G01J1/4204 , G01J3/513
摘要： A system configured to monitor ambient illumination experienced by a subject. In one embodiment, the system comprises an illumination sensor, a timer, and a storage module. The illumination sensor is configured to monitor an intensity of ambient illumination within two or more wavelength ranges by generating one or more output signals that convey information related to the intensity of ambient illumination within the two or more wavelength ranges. The timer is configured to indicate the passage of periods of time. The storage module is configured to store information related to the intensity of ambient illumination within the two or more wavelength ranges, as conveyed by the one or more output signals, for individual periods of time. The system is portable to be carried by the subject.
摘要翻译： 一种被配置为监测受试者经历的环境照明的系统。 在一个实施例中，该系统包括照明传感器，定时器和存储模块。 照明传感器被配置为通过产生一个或多个输出信号来监测两个或更多个波长范围内的环境照明的强度，所述输出信号传达与两个或更多个波长范围内的环境照明的强度有关的信息。 定时器被配置为指示时间段的通过。 存储模块被配置为存储与由一个或多个输出信号传送的两个或多个波长范围内的环境照明强度有关的信息，用于各个时间段。 该系统是可携带的，由被摄体携带。
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公开(公告)号：US06814706B2
公开(公告)日：2004-11-09
申请号：US10071534
申请日：2002-02-08
IPC分类号： A61B500
CPC分类号： A61B5/0008 , A61B2560/0412 , A61B2562/247 , G01K13/002 , Y10S128/903
摘要： A skin patch includes first and second layers of material and a telesensor sandwiched between the first and second layers. The first layer has a coating of skin-compatible adhesive material on its face that is remote from the second layer.
摘要翻译： 皮肤贴片包括第一和第二层材料以及夹在第一和第二层之间的电传感器。 第一层在其远离第二层的表面上具有与皮肤相容的粘合剂材料的涂层。
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公开(公告)号：US06629776B2
公开(公告)日：2003-10-07
申请号：US10017098
申请日：2001-12-12
IPC分类号： G01K734
CPC分类号： G01K7/245
摘要： A thermometer is disclosed that utilizes a thermistor as a temperature sensor, to control the period and duty cycle of a multivibrator circuit. A second circuit, controlled by a microcontroller, measures both the charge and discharge times of the oscillation. From the ratio of these parameters, a precise indication of temperature can be obtained that is independent of temperature variations within the active components and the charging capacitor of the multivibrator circuit. The method is also independent of the value of the charging capacitor. Furthermore, by measuring the same ratio when a fixed resistor is substituted for the thermistor, a cell constant can be derived. The cell constant is used to calibrate the non-ideal response of the multivibrator circuit, thus providing a more accurate measurement of temperature.
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公开(公告)号：US08852127B2
公开(公告)日：2014-10-07
申请号：US12131220
申请日：2008-06-02
IPC分类号： A61B5/103 , A61B5/117 , A61B5/04 , G08B23/00 , G01J1/42 , G01J3/51 , A61B5/00 , A61B5/11 , G01J1/02 , G01J1/04
CPC分类号： A61B5/11 , A61B5/4809 , A61B5/4812 , A61B5/681 , A61B5/7232 , A61B2560/0242 , A61B2560/0456 , G01J1/0233 , G01J1/0247 , G01J1/0488 , G01J1/4204 , G01J3/513
摘要： A system configured to monitor ambient illumination experienced by a subject. In one embodiment, the system comprises an illumination sensor, a timer, and a storage module. The illumination sensor is configured to monitor an intensity of ambient illumination within two or more wavelength ranges by generating one or more output signals that convey information related to the intensity of ambient illumination within the two or more wavelength ranges. The timer is configured to indicate the passage of periods of time. The storage module is configured to store information related to the intensity of ambient illumination within the two or more wavelength ranges, as conveyed by the one or more output signals, for individual periods of time. The system is portable to be carried by the subject.
摘要翻译： 一种被配置为监测受试者经历的环境照明的系统。 在一个实施例中，该系统包括照明传感器，定时器和存储模块。 照明传感器被配置为通过产生一个或多个输出信号来监测两个或更多个波长范围内的环境照明的强度，所述输出信号传达与两个或更多个波长范围内的环境照明的强度有关的信息。 定时器被配置为指示时间段的通过。 存储模块被配置为存储与由一个或多个输出信号传送的两个或多个波长范围内的环境照明强度有关的信息，用于各个时间段。 该系统是可携带的，由被摄体携带。
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