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    • 2. 发明授权
    • Detection arrangements
    • 检测安排
    • US07843324B2
    • 2010-11-30
    • US11884507
    • 2005-12-12
    • Stephen John PenneySteven Ian Bennett
    • Stephen John PenneySteven Ian Bennett
    • G08B29/00
    • G08B21/14H03K17/94
    • A detection system in which a single sensor (14) is employed to detect two, or more, levels, or ranges, of a parameter. The output signal from the sensor (14) is fed to a detection circuit (12) for amplification and thence to a control circuit (24). The control circuit (24) is switchable, either manually, or preferably programmably, for example by a timer, between two or more modes of operation for processing the output signal from the sensor (14) in a different manner, for example using different algorithms, according to the condition that is to be detected. The switching of the control circuit (24) between its modes results in a signal being sent to the detection circuit (12) to change its sensitivity to the signal received from the sensor (14), thereby to maintain accuracy of measurement of the parameter in both or all modes of operation.
    • 一种检测系统,其中使用单个传感器(14)来检测参数的两个或更多个等级或范围。 来自传感器(14)的输出信号被馈送到用于放大的检测电路(12),从而被馈送到控制电路(24)。 控制电路(24)可以例如通过例如使用不同的算法来处理来自传感器(14)的输出信号的两种或多种操作模式之间手动地或优选地可编程地可切换地(例如通过定时器) ,根据要检测的条件。 控制电路(24)在其模式之间的切换导致信号被发送到检测电路(12),以将其灵敏度改变为从传感器(14)接收的信号,从而保持参数的测量精度 两种或所有操作模式。
    • 4. 发明申请
    • Detection Arrangements
    • 检测安排
    • US20080157962A1
    • 2008-07-03
    • US11884507
    • 2005-12-12
    • Stephen John PenneySteven Ian Bennett
    • Stephen John PenneySteven Ian Bennett
    • G08B17/10H03K17/94
    • G08B21/14H03K17/94
    • A detection system in which a single sensor (14) is employed to detect two, or more, levels, or ranges, of a parameter. The output signal from the sensor (14) is fed to a detection circuit (12) for amplification and thence to a control circuit (24). The control circuit (24) is switchable, either manually, or preferably programmably, for example by a timer, between two or more modes of operation for processing the output signal from the sensor (14) in a different manner, for example using different algorithms, according to the condition that is to be detected. The switching of the control circuit (24) between its modes results in a signal being sent to the detection circuit (12) to change its sensitivity to the signal received from the sensor (14), thereby to maintain accuracy of measurement of the parameter in both or all modes of operation.
    • 一种检测系统,其中使用单个传感器(14)来检测参数的两个或更多个等级或范围。 来自传感器(14)的输出信号被馈送到用于放大的检测电路(12),从而被馈送到控制电路(24)。 控制电路(24)可以例如通过例如使用不同的算法来处理来自传感器(14)的输出信号的两种或更多种操作模式之间的手动或优选地可编程地可切换, ,根据要检测的条件。 控制电路(24)在其模式之间的切换导致信号被发送到检测电路(12),以将其灵敏度改变为从传感器(14)接收的信号,从而保持参数的测量精度 两种或所有操作模式。
    • 5. 发明申请
    • Smoke Detector
    • 烟雾探测器
    • US20080191888A1
    • 2008-08-14
    • US11884291
    • 2005-12-12
    • Stephen John Penney
    • Stephen John Penney
    • G08B17/10
    • G08B29/18G08B17/107G08B17/113G08B29/043
    • A self-monitoring smoke detector comprising a housing (11) defining an internal chamber (12). An optical transmitter (13) is mounted within the housing (11) so as to direct light into the optical chamber (12). An optical receiver (14) is mounted in the housing (11) and in optical communication with the optical chamber (12). The optical transmitter (13) and the optical receiver (14) are so positioned that light from the transmitter cannot directly reach the receiver. Monitoring means is provided, comprising first and second light-scattering means (13a and 14a) positioned respectively in alignment with the transmitter (13) and the receiver (14). The arrangement is such that, in the absence of reflector particles in the optical chamber, light from the transmitter (13) can reach the receiver (14) only after scattering at the first light-scattering means (13a) and then after scattering at the second light-scattering means (14a).
    • 一种自我监测烟雾探测器,包括限定内部腔室(12)的壳体(11)。 光学发射器(13)安装在壳体(11)内,以将光引导到光学腔室(12)中。 光接收器(14)安装在壳体(11)中并与光学室(12)光学连通。 光发射器(13)和光接收器(14)被定位成使得来自发射器的光不能直接到达接收器。 提供监测装置,包括分别与发射器(13)和接收器(14)对准的第一和第二光散射装置(13a和14a)。 这种布置使得在没有光学腔室中的反射器粒子的情况下,来自发射器(13)的光只有在第一光散射装置(13a)散射之后才能到达接收器(14),然后在 第二光散射装置(14a)。
    • 7. 发明授权
    • Smoke detector
    • 烟雾探测器
    • US07940190B2
    • 2011-05-10
    • US11884291
    • 2005-12-12
    • Stephen John Penney
    • Stephen John Penney
    • G08B17/10
    • G08B29/18G08B17/107G08B17/113G08B29/043
    • A self-monitoring smoke detector comprising a housing (11) defining an internal chamber (12). An optical transmitter (13) is mounted within the housing (11) so as to direct light into the optical chamber (12). An optical receiver (14) is mounted in the housing (11) and in optical communication with the optical chamber (12). The optical transmitter (13) and the optical receiver (14) are so positioned that light from the transmitter cannot directly reach the receiver. Monitoring means is provided, comprising first and second light-scattering means (13a and 14a) positioned respectively in alignment with the transmitter (13) and the receiver (14). The arrangement is such that, in the absence of reflector particles in the optical chamber, light from the transmitter (13) can reach the receiver (14) only after scattering at the first light-scattering means (13a) and then after scattering at the second light-scattering means (14a).
    • 一种自我监测烟雾探测器,包括限定内部腔室(12)的壳体(11)。 光学发射器(13)安装在壳体(11)内,以将光引导到光学腔室(12)中。 光接收器(14)安装在壳体(11)中并与光学室(12)光学连通。 光发射器(13)和光接收器(14)被定位成使得来自发射器的光不能直接到达接收器。 提供了监测装置,包括分别与发射器(13)和接收器(14)对准的第一和第二光散射装置(13a和14a)。 这种布置使得在没有光学腔室中的反射器粒子的情况下,只有在第一光散射装置(13a)散射之后,来自发射器(13)的光才能到达接收器(14),然后在 第二光散射装置(14a)。
    • 10. 发明授权
    • Amplification circuits
    • 放大电路
    • US06188278B1
    • 2001-02-13
    • US09261238
    • 1999-03-03
    • Stephen John Penney
    • Stephen John Penney
    • H03F114
    • G01N27/4045
    • An amplification circuit for use with an electro chemical cell is disclosed. The cell is operated in the amperometric mode and finds beneficial application in the detection of carbon monoxide (CO) gas. The amplification circuit of the invention is used to derive electrical output signals from the cell whilst ensuring that the cell electrodes are held at a potential that minimises cross-sensitivities and controlling voltage spikes which the cell would otherwise extend in duration, due to its capacitive behaviour, and comprises an operational amplifier connected to derive electrical output signals from the cell and having a feedback path incorporating at least one component of a current mirror circuit.
    • 公开了一种用于电化学电池的放大电路。 电池以电流分析模式运行,并且在检测一氧化碳(CO)气体中有利的应用。 本发明的放大电路用于从单元导出电输出信号,同时确保单元电极被保持在最小化交叉敏感性并且控制单元在其持续时间内延伸的电压尖峰的电位,由于其电容性能 并且包括运算放大器,其连接以从该单元导出电输出信号并具有并入电流镜电路的至少一个分量的反馈路径。