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    TEMPERATURE-SENSING AND TRANSMITTING ASSEMBLIES, PROGRAMMABLE TEMPERATURE SENSOR UNITS, AND METHODS OF MAKING AND USING THEM
    1.
    发明申请
    TEMPERATURE-SENSING AND TRANSMITTING ASSEMBLIES, PROGRAMMABLE TEMPERATURE SENSOR UNITS, AND METHODS OF MAKING AND USING THEM 审中-公开
    温度传感和传输组件，可编程温度传感器单元及其制造和使用方法

    公开(公告)号：WO2007143191A3

    公开(公告)日：2008-11-06

    申请号：PCT/US2007013129

    申请日：2007-06-02

    Applicant: PREC LINEAR SYSTEMS INC ,  OWEN WILLIAM H ,  CLIFFORD LAURENCE

    Inventor： OWEN WILLIAM H ,  CLIFFORD LAURENCE

    IPC: G01K7/00

    CPC classification number: G01K1/14 ,  G01K7/01 ,  G01K7/16 ,  G01K2201/00

    Abstract: In an exemplary embodiment, a temperature sensor and a 4-20mA transmitter on a single flexible circuit subassembly with a separate housing suitable for use in industrial control or HVAC applications. In a preferred embodiment, a narrow flex circuit substrate includes a silicon diode-based surface-mount sensor at a sensor end, a surface-mount programmable transmitter IC on a flex circuit substrate in the transmitter section, conductive traces connecting the sensor to the transmitter IC, and two conductive pads at an output end for connecting the 4-20mA output to a pair of external wires. Additional traces on the flex subassembly are provided for testing and programming the transmitter IC and sensor. The sensor end of the flex subassembly is mounted in a metal sensor tube, filled and sealed in the same manner as RTD or thermistor sensors with leads are currently assembled for use in industrial control or HVAC applications. The sensor tube assembly is attached to a connection head following industry standard practices. A separate plastic housing, compliant with existing industrial control or HVAC industry standards for transmitters, is mounted in the connection head and is configured to hold the transmitter end of the flex circuit. A two position terminal block is used to connect external wires to the 4-20mA output pads. A programmable transmitter is used to calibrate both the sensor and transmitter which are mounted together on the same subassembly. This provides total system accuracy better than +/- 0.3°C over a 200°C span, compared to +/-.8°C accuracy for existing IEC class A RTD- based systems. The programmable transmitter reduces the component cost by eliminating the need for any high precision components in the system. Manufacturing and testing costs are reduced by fabricating, assembling, and testing many flex circuits together on one panel at the same time.

    Abstract translation: 在示例性实施例中，温度传感器和4-20mA变送器在单个柔性电路子组件上，具有适用于工业控制或HVAC应用的单独外壳。 在优选实施例中，窄的柔性电路衬底包括传感器端的基于硅二极管的表面贴装传感器，在发射器部分中的柔性电路衬底上的表面安装可编程发射器IC，将传感器连接到发射器 IC和两个导电焊盘，用于将4-20mA输出连接到一对外部电线。 提供柔性子组件上的附加走线用于测试和编程发射器IC和传感器。 柔性子组件的传感器端安装在金属传感器管中，以与RTD或热敏电阻传感器相同的方式填充和密封，导线当前组装用于工业控制或HVAC应用。 传感器管组件按照行业标准做法连接到连接头。 独立的塑料外壳，符合现有的工业控制或HVAC行业标准的变送器，安装在连接头中，并配置成保持柔性电路的变送器端。 使用两位端子块将外部电线连接到4-20mA输出焊盘。 可编程发射器用于校准安装在同一子组件上的传感器和发射器。 与现有IEC A类基于RTD的系统的+/-。8°C精度相比，在200°C范围内提供的系统精度优于+/- 0.3°C。 可编程发射器通过消除对系统中任何高精度组件的需求来降低部件成本。 同时在一个面板上制造，组装和测试许多柔性电路，从而降低制造和测试成本。

    TEMPERATURE-SENSING AND TRANSMITTING ASSEMBLIES, PROGRAMMABLE TEMPERATURE SENSOR UNITS, AND METHODS OF MAKING AND USING THEM
    2.
    发明专利
    TEMPERATURE-SENSING AND TRANSMITTING ASSEMBLIES, PROGRAMMABLE TEMPERATURE SENSOR UNITS, AND METHODS OF MAKING AND USING THEM 未知

    公开(公告)号：CA2654084A1

    公开(公告)日：2007-12-13

    申请号：CA2654084

    申请日：2007-06-02

    Applicant: PREC LINEAR SYSTEMS INC

    Inventor： OWEN WILLIAM H ,  CLIFFORD LAURENCE

    IPC: G01K7/00

    Abstract: In an exemplary embodiment, a temperature sensor and a 4-20mA transmitter on a single flexible circuit subassembly with a separate housing suitable f or use in industrial control or HVAC applications. In a preferred embodiment , a narrow flex circuit substrate includes a silicon diode-based surface-mou nt sensor at a sensor end, a surface-mount programmable transmitter IC on a flex circuit substrate in the transmitter section, conductive traces connect ing the sensor to the transmitter IC, and two conductive pads at an output e nd for connecting the 4-20mA output to a pair of external wires. Additional traces on the flex subassembly are provided for testing and programming the transmitter IC and sensor. The sensor end of the flex subassembly is mounted in a metal sensor tube, filled and sealed in the same manner as RTD or ther mistor sensors with leads are currently assembled for use in industrial cont rol or HVAC applications. The sensor tube assembly is attached to a connecti on head following industry standard practices. A separate plastic housing, c ompliant with existing industrial control or HVAC industry standards for tra nsmitters, is mounted in the connection head and is configured to hold the t ransmitter end of the flex circuit. A two position terminal block is used to connect external wires to the 4-20mA output pads. A programmable transmitte r is used to calibrate both the sensor and transmitter which are mounted tog ether on the same subassembly. This provides total system accuracy better th an +/- 0.3°C over a 200°C span, compared to +/-.8°C accuracy for existing IE C class A RTD- based systems. The programmable transmitter reduces the compo nent cost by eliminating the need for any high precision components in the s ystem. Manufacturing and testing costs are reduced by fabricating, assemblin g, and testing many flex circuits together on one panel at the same time.

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