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    • 5. 发明授权
    • Enhancing thermocouple temperature measurement accuracy with local RTDs to compensate terminal temperature difference
    • 利用本地RTD增强热电偶温度测量精度,以补偿端子温差
    • US08996327B2
    • 2015-03-31
    • US13348527
    • 2012-01-11
    • Liang GeXiaofan Chen
    • Liang GeXiaofan Chen
    • G01K7/13G01K7/16G01K7/00G01K1/20G01K7/02G01K7/12
    • G01K1/20G01K7/02G01K7/12
    • An I/O circuit for measuring temperatures uses multiple cold-junction compensation sensors permanently affixed near the terminals of the terminal block in order to compensate significant temperature variation across the terminals of the I/O module (up to 3° C.) that can substantially affect the accuracy of thermocouple measurements. The use of these multiple sensors is enabled by a compensation system that corrects for the distance between the built-in sensors and the terminals, a multiplexer that accommodates the additional signal burden produced by the sensors, and a compensation system that allows low-cost sensors to be used and calibrated to as little as a single high accuracy sensor. In one embodiment, a third temperature sensor with relatively higher accuracy is used to compensate for lower accuracy of permanently affixed sensors.
    • 用于测量温度的I / O电路使用多个冷端补偿传感器,永久性地固定在接线端子端子附近,以补偿I / O模块端子(高达3°C)之间的显着温度变化, 基本上影响热电偶测量的精度。 这些多个传感器的使用通过补偿系统来实现,该补偿系统校正了内置传感器和终端之间的距离,一个适应传感器产生的附加信号负担的多路复用器,以及允许低成本传感器 被使用和校准到一个单一的高精度传感器。 在一个实施例中,使用具有相对较高精度的第三温度传感器来补偿永久固定的传感器的较低精度。
    • 10. 发明申请
    • SLICE-IO HOUSING WITH SIDE VENTILATION
    • 具有侧面通风的液晶显示器
    • US20150181758A1
    • 2015-06-25
    • US14190726
    • 2014-02-26
    • Soon Seng Kang
    • Soon Seng Kang
    • H05K7/20H05K7/14
    • H05K7/20127H05K5/0213H05K7/1468H05K7/1469Y10T29/49826
    • An input/output (I/O) device having a base portion configured to communicatively connect the I/O device with at least one other device, an I/O module physically and communicatively connected to the base portion and comprising I/O communication circuitry and a terminal block mount surface, and a terminal block physically and communicatively connected to the terminal block mount surface of the I/O module. The terminal block mount surface has a width that is greater than a corresponding width of the terminal block such that a portion of the terminal block mount surface extends beyond the terminal block, said portion of the terminal block mount surface extending beyond the terminal block including at least one vent for permitting the flow of air through the I/O module and along the terminal block.
    • 一种具有基本部分的输入/输出(I / O)设备,其被配置为将I / O设备与至少一个其他设备通信地连接,I / O模块物理上和通信地连接到基本部分,并且包括I / O通信电路 和终端块安装表面,以及物理上和通信地连接到I / O模块的端子块安装表面的端子块。 端子台安装表面的宽度大于端子块的对应宽度,使得端子块安装表面的一部分延伸超出端子块,所述端子块安装表面的所述部分延伸超过端子块,包括在 至少一个通气口允许空气流过I / O模块并沿着端子排。