会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 88. 发明授权
    • Apparatus and method for stabilization of a thermistor temperature sensor
    • 用于稳定热敏电阻温度传感器的装置和方法
    • US4215336A
    • 1980-07-29
    • US896974
    • 1978-04-17
    • Thomas W. Smith
    • Thomas W. Smith
    • G01K7/25G01K7/22G06G7/20
    • G01K7/25
    • A thermistor temperature sensor having non-linear electrical response characteristics with temperature, a material constant, beta, that varies with temperature, and providing an output signal indicative of the temperature desired to be measured is utilized herein. A time dependent signal having a configuration that offsets the non-linear temperature dependence of the sensor output signal is generated and compared to the sensor output signal. Whenever the sensor output at least equals that of the offsetting signal, a comparator generates an output signal that, after appropriate delay, is indicative of the actual temperature. The material "constant" of the sensor is maintained substantially constant over at least a substantial range of temperatures. Additionally or alternatively, the sensor is energized in such manner as to substantially eliminate self-heating induced variations in the sensor output signal.
    • 本文中使用具有随温度而变化的温度,材料常数β的非线性电响应特性以及提供指示所要测量的温度的输出信号的热敏电阻温度传感器。 产生具有抵消传感器输出信号的非线性温度依赖性的配置的时间依赖信号,并与传感器输出信号进行比较。 每当传感器输出至少等于偏移信号的输出信号时,比较器就产生一个输出信号,在适当的延迟之后,该输出信号表示实际温度。 传感器的材料“常数”在至少相当大的温度范围内保持基本恒定。 附加地或替代地,传感器以这样的方式通电,以便基本上消除传感器输出信号中的自发热引起的变化。
    • 89. 发明授权
    • Method of tire cure control
    • 轮胎固化控制方法
    • US3980743A
    • 1976-09-14
    • US403118
    • 1973-10-03
    • Thomas W. Smith
    • Thomas W. Smith
    • B29C35/02G05B19/14B29H5/02
    • G05B19/14B29C35/0288B29C2037/903B29K2105/24B29L2030/00
    • A system for controlling sequence and duration of the operational steps in processes such as vulcanization of a pneumatic tire is capable of operating under two basic modes or parameters. In one mode the operational steps are dictated by elapsed real time, while in the other mode, the operation can be dictated by elapsed cure equivalent factors. The desired length of each step or the cure, whether in time or cure equivalents, is set into an input program means. In the time mode, time generating circuitry provides an output proportional to elapsed time which output is displayed on a counter and electrically compared with the information in the input program means. When a match occurs, the time generating circuitry and displays are reset and the input program means directs the tire vulcanization press to perform the next sequential function. Also disclosed is circuitry which is capable of performing secondary functions such as extending the length of a step, as necessary. If it is desired to operate in the cure equivalent mode, a signal proportional to elapsed cure equivalents is developed by a cure equivalent generating circuitry which performs digital integration of the Arrhenius function. The input to cure equivalent generating circuitry can be a signal proportional to tire temperature developed by internal thermocouples or can be a signal which is directly proportional to the Arrhenius function as generated by a thermistor sensor.
    • 用于控制充气轮胎的硫化过程中的操作步骤的顺序和持续时间的系统能够在两种基本模式或参数下操作。 在一种模式中,操作步骤由经过的实时指定,而在另一种模式中,操作可以由经过的固化等效因子来决定。 每个步骤或固化的期望长度(无论是时间上还是固化等价物)被设置为输入程序装置。 在时间模式中,时间产生电路提供与计时器上显示的输出成比例的输出,并与输入程序装置中的信息进行电气比较。 当发生匹配时,时间生成电路和显示器被复位,并且输入程序意味着引导轮胎硫化机进行下一个顺序功能。 还公开了能够执行次要功能的电路,例如根据需要延长台阶的长度。 如果希望以固化等效模式操作,则通过执行Arrhenius功能的数字积分的固化等效产生电路来开发与经过的固化当量成比例的信号。 用于固化等效发电电路的输入可以是与由内部热电偶产生的轮胎温度成比例的信号,或者可以是与由热敏电阻传感器产生的Arrhenius函数成正比的信号。