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29 条记录 (耗时 0.017 秒)

    Humidity sensitive device
    1.
    发明授权
    Humidity sensitive device 失效
    湿度敏感装置

    公开(公告)号：US4594569A

    公开(公告)日：1986-06-10

    申请号：US796506

    申请日：1985-11-12

    申请人： Fumio Fukushima ,  Jiro Terada ,  Tsuneharu Nitta

    发明人： Fumio Fukushima ,  Jiro Terada ,  Tsuneharu Nitta

    IPC分类号： G01N27/12 ,  G01N27/04

    CPC分类号： G01N27/121

    摘要： A humidity sensitive device for sensing the humidity of an ambient humidity comprising a humidity sensitive resistor 15 which comprises as main component at least one selected from the group consisting of ZrO.sub.2, TiO.sub.2, Nb.sub.2 O.sub.5 and Ta.sub.2 O.sub.5 and an electric heater 13 applied near and for heating and retaining the humidity sensitive resistor 15 at a temperature above 200.degree. C. The humidity sensitive resistor 15 and a fixed resistor are series connected across an AC voltage source 17, and a voltage across the humidity sensitive resistor 15 or the fixed resistor 16 is rectified by a AC/DC converter and compared with a reference voltage by a comparator, thereby an output responding to humidity in the atmosphere can be measured for a wide range of temperature.

    摘要翻译： 一种用于感测环境湿度的湿度的湿度敏感装置，包括湿度敏感电阻器15，其包含选自由ZrO 2，TiO 2，Nb 2 O 5和Ta 2 O 5组成的组中的至少一种作为主要成分，以及加热和加热附近的电加热器13， 将湿度敏感电阻器15保持在200℃以上的温度。湿敏电阻器15和固定电阻器串联连接在交流电压源17上，并且湿敏电阻器15或固定电阻器16两端的电压由 AC / DC转换器，并且通过比较器与参考电压进行比较，从而可以在宽的温度范围内测量响应于大气中的湿度的输出。

    Humidity detecting apparatus
    2.
    发明授权
    Humidity detecting apparatus 失效
    湿度检测装置

    公开(公告)号：US4326414A

    公开(公告)日：1982-04-27

    申请号：US107182

    申请日：1979-12-26

    申请人： Jiro Terada ,  Tsuneharu Nitta

    发明人： Jiro Terada ,  Tsuneharu Nitta

    IPC分类号： G01N27/12 ,  G01W1/00

    CPC分类号： G01N27/121

    摘要： A humidity detecting resistor porcelain element, with at least one portion of an electrode being made of a resistance heating unit and the electrode serving for the resistance heating unit and humidity detecting element, and a humidity detecting apparatus using the humidity detecting resistor porcelain element. The heating and cleaning operations of the humidity detecting resistor porcelain can be uniformly and efficiently performed, thus ensuring the stable humidity detection. Also, the circuit construction of the humidity detecting apparatus can be simplified. They can be provided for use in the detecting and controlling operations of the various humidities.

    摘要翻译： 一种湿度检测电阻器瓷元件，电极的至少一部分由电阻加热单元和用于电阻加热单元和湿度检测元件的电极以及使用该湿度检测电阻器瓷元件的湿度检测装置构成。 可以均匀有效地进行湿度检测电阻瓷器的加热和清洁操作，从而确保湿度的稳定检测。 此外，可以简化湿度检测装置的电路结构。 它们可以用于各种湿度的检测和控制操作。

    Temperature.multidot.humidity detecting apparatus
    3.
    发明授权
    Temperature.multidot.humidity detecting apparatus 失效
    温湿度检测装置

    公开(公告)号：US4319485A

    公开(公告)日：1982-03-16

    申请号：US107183

    申请日：1979-12-26

    申请人： Jiro Terada ,  Tsuneharu Nitta

    发明人： Jiro Terada ,  Tsuneharu Nitta

    IPC分类号： G01K7/34 ,  G01N27/22

    CPC分类号： G01N27/223 ,  G01K7/343

    摘要： A temperature.multidot.humidity detecting apparatus which can detect the temperature and humidity with a single element. The temperature.multidot.humidity detecting element of the present invention varies its impedance value with respect to variations in the temperature and humidity, and the temperature.multidot.humidity detecting apparatus is adapted to detect the variations in the temperature.multidot.humidity detecting element impedance to determine the temperature and humidity.

    摘要翻译： 一种温湿度检测装置，其可以用单个元件检测温度和湿度。 本发明的温度检测元件相对于温度和湿度的变化来改变其阻抗值，并且温度湿度检测装置适于检测温度湿度检测元件阻抗的变化以确定温度和湿度。

    Multi-functional sensing or measuring system
    5.
    发明授权
    Multi-functional sensing or measuring system 失效
    多功能感应或测量系统

    公开(公告)号：US4419021A

    公开(公告)日：1983-12-06

    申请号：US229185

    申请日：1981-01-28

    申请人： Jiro Terada ,  Tsuneharu Nitta

    发明人： Jiro Terada ,  Tsuneharu Nitta

    IPC分类号： G01N27/12 ,  G01N27/22 ,  G01W1/17 ,  G01K7/00

    CPC分类号： G01W1/17 ,  G01N27/121

    摘要： A multi-functional sensing and measuring system capable of detecting both temperature and humidity is fabricated from a porous metal-oxide ceramic whose dielectric constant varies with temperature and whose electric resistance varies with ambient humidity. The sensing element is connected in series with a resistor and a rectangular pulse voltage is applied across the series combination, and the ambient temperature and humidity are measured simultaneously in terms of (i) the circuit time constant (to measure temperature) of a transient state value and (ii) the steady state value of the voltage across the resistor (to measure humidity).

    摘要翻译： 能够检测温度和湿度的多功能感测和测量系统由介电常数随温度变化并且其电阻随环境湿度变化的多孔金属氧化物陶瓷制成。 感测元件与电阻器串联连接，并且串联组合施加矩形脉冲电压，并且根据（i）瞬态的电路时间常数（以测量温度）同时测量环境温度和湿度 值和（ii）电阻器两端的电压的稳态值（以测量湿度）。

    Multi-functional sensor
    7.
    发明授权
    Multi-functional sensor 失效
    多功能传感器

    公开(公告)号：US4378691A

    公开(公告)日：1983-04-05

    申请号：US229181

    申请日：1981-01-28

    申请人： Jiro Terada ,  Tsuneharu Nitta

    发明人： Jiro Terada ,  Tsuneharu Nitta

    IPC分类号： G01N27/12 ,  G01N31/06

    CPC分类号： G01N27/12 ,  G01N27/121

    摘要： A multi-functional sensor capable of sensing the humidity and the concentration of reducing gases in the surrounding atmosphere with a single sensing element of p-type metal-oxide ceramic semiconductor is provided. When the ambient temperature is lower than 150.degree. C., the sensor can detect humidity in terms of variations in ion conduction due to the physical absorption of water by the sensing element, but when the ambient temperature or the temperature of the sensing element is at temperatures between 200.degree. and 600.degree. C., the sensor can detect the presence or concentration of reducing gases in the surrounding atmosphere in terms of variations in electron conduction due to the chemical absorption of gases by the sensing element.

    摘要翻译： 提供了能够利用p型金属氧化物陶瓷半导体的单个感测元件感测周围大气中的湿气和浓缩气体的多功能传感器。 当环境温度低于150℃时，传感器可以根据感测元件对水的物理吸收而在离子传导的变化方面检测湿度，但是当感测元件的环境温度或温度处于 在200〜600℃的温度范围内，由于传感元件对气体的化学吸附，传感器可以检测周围大气中还原气体的存在或浓度。

    Humidity detecting apparatus
    8.
    发明授权
    Humidity detecting apparatus 失效
    湿度检测装置

    公开(公告)号：US4270085A

    公开(公告)日：1981-05-26

    申请号：US83933

    申请日：1979-10-11

    申请人： Jiro Terada ,  Tsuneharu Nitta ,  Yukihiko Ise

    发明人： Jiro Terada ,  Tsuneharu Nitta ,  Yukihiko Ise

    IPC分类号： H01C7/00 ,  G01N27/12 ,  G01N33/00 ,  G01R27/02

    CPC分类号： G01N27/121 ,  G01N33/0067

    摘要： This invention is directed to an apparatus capable of stably detecting humidity. More particularly, to stably detect the humidity in the atmosphere where temperature, relative humidity or wind flow vary, this humidity detecting apparatus converts the resistance variation, due to humidity, of a humidity-sensing resistor into voltage variation to draw out the voltage variation thereby to differentiate the voltage variation with a differential circuit and thereafter to compare the differentiation output with a set value. Therefore, the steam leakage from the high pressure, high temperature steam supply pipe or the relative humidity inside a microwave oven can be easily, automatically detected.

    摘要翻译： 本发明涉及能够稳定地检测湿度的装置。 更具体地，为了稳定地检测温度，相对湿度或风流变化的气氛中的湿度，该湿度检测装置将湿度检测电阻器的湿度电阻变化值变换为电压变化，从而得出电压变化 以差分电路区分电压变化，然后将微分输出与设定值进行比较。 因此，可以容易地自动检测来自高压，高温蒸汽供给管的蒸汽泄漏或微波炉内的相对湿度。