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    • 94. 发明专利
    • Relative humidity measuring method and humidity sensor used in this method
    • 本方法中使用的相对湿度测量方法和湿度传感器
    • JPS6117055A
    • 1986-01-25
    • JP13519684
    • 1984-07-02
    • Kanagawaken
    • NAMITOU YASUOYAKABE TOSHIYUKI
    • G01N25/66G01N25/68
    • G01N25/68
    • PURPOSE:To measure relative humidity by a compact, simple constitution, by yielding dew condensation on a surface to be measured by a cooling element, detecting the time from the start of cooling to the detection of the dew condensation, and determining relative humidity based on known correlation. CONSTITUTION:When a power source is turned ON, there is no dew condensation on the surface to be measured and the resistance of a dew condensation sensor 3 is large. A no-dew-condensation H signal is outputted from a comparator 22 in a dew-condensation/no-dew-condensation judging circuit 20. A switch 31 of a cooling-element selecting and driving circuit 30 is turned On and a current is supplied to a Peltier effect type cooling element 2. The element 2 is cooled and the dew is forcibly condensed. Decrease in resistance is detected by the sensor 3. The output of the comparator 22 is inverted to L and the switch 31 is turned OFF. Those H and L outputs are supplied through a buffer 50. A microcomputer 41 of an operation and display circuit 40 computes the time from the rise up of the H output to the fall of the L output. Ambient temperature is measured by a temperature sensor 60. Relative humidity is determined based on the known correlation. Thus the relative humidity is measured by a compact, simple constitution.
    • 目的:通过紧凑,简单的结构测量相对湿度,通过在冷却元件测量的表面上产生结露,检测从冷却开始到结露的检测时间,并根据 已知相关性。 构成:当电源接通时,待测表面上没有结露,结露传感器3的电阻较大。 在结露/不结露判定电路20中从比较器22输出无结露的H信号。冷却元件选择和驱动电路30的开关31接通并且提供电流 到珀尔帖效应型冷却元件2.元件2被冷却,露水被强制冷凝。 传感器3检测到电阻的降低。比较器22的输出被反相为L,开关31断开。 这些H和L输出通过缓冲器50提供。操作和显示电路40的微计算机41计算从H输出的上升到L输出的下降的时间。 环境温度由温度传感器60测量。相对湿度根据已知的相关性确定。 因此,通过紧凑的简单结构来测量相对湿度。
    • 99. 发明专利
    • Circuit for discriminating and converting voltage value
    • 用于分辨和转换电压值的电路
    • JPS5958363A
    • 1984-04-04
    • JP16826182
    • 1982-09-29
    • Kanagawaken
    • SUZUKI SEIICHI
    • G01R19/165
    • G01R19/16576
    • PURPOSE:To discriminate a voltage value with a simple circuit, by comparing and discriminating an input voltage with a reference voltage, and converting the discriminated result into a digital signal and, at the same time, outputting independently signals in accordance with the result. CONSTITUTION:When an input voltage Vi higher than the reference voltage Vp of a reference voltage section 2 of one line is inputted across the input terminals P1 and P0 of a discriminating circuit 1, a base current is made to flow to a transistor Tr1 through a Zener diode DZ, then the transistor Tr1 conducts. Moreover, the LED1 of a photocoupler PC1 emits the light and PD1 conducts and, simultaneously, a transistor Tr2 is put in a non-conducting condition. In addition to the above, since a point P3 becomes low level and another point P4 becomes high level, inverters IC1 and IC2 are inverted and a voltage which is higher in level than that of an output terminal X1 and a voltage which is lower in level than that of another output terminal X2 are independently outputted. Therefore, processing of discriminated results can be made easier.
    • 目的:通过比较和鉴别输入电压与参考电压,通过简单的电路来区分电压值,并将鉴别结果转换成数字信号,同时根据结果独立地输出信号。 构成:当在识别电路1的输入端子P1和P0上输入高于一行参考电压部分2的参考电压Vp的输入电压Vi时,通过一个基极电流流过晶体管Tr1 齐纳二极管DZ,则晶体管Tr1导通。 此外,光电耦合器PC1的LED1发光,PD1导通,并且晶体管Tr2同时处于不导通状态。 除此之外,由于点P3为低电平,另一点P4变为高电平,因此反相器IC1和IC2反相,电平高于输出端子X1的电压和电平较低的电压 独立地输出另一个输出端子X2的输出端子。 因此,可以更容易地处理辨别结果。