Sensor
    1.
    发明授权
    Sensor 失效
    传感器

    公开(公告)号:US4928513A

    公开(公告)日:1990-05-29

    申请号:US78741

    申请日:1987-07-28

    IPC分类号: G01N27/12 G01N33/00

    摘要: A sensor having a pair of sensor units, one of which is a detecting sensor unit and the other of which is a reference sensor unit, wherein each of the units comprises a substrate with a hollow portion, a thin insulating layer with a bridge, cantilever or diaphragm shape disposed on the substrate, a sensitive film disposed on the bridge, cantilever or diaphragm portion of the thin insulating layer, and a pair of electrodes being in contact with the sensitive film, the sensitive film section of the detecting sensor unit being exposed to an atmosphere to be measured so that the electrical resistance of the sensitive film changes with a variation in the physical quantity of the atmosphere to be detected, and the sensitive film section of the reference sensor unit being sealed within a shielding container so that the electrical resistance of the sensitive film is not influenced by a variation in the physical quantity of the atmosphere outside of the container, whereby the absolute physical quantity of the atmosphere to be detected is determined by the output power of the sensor based on a difference between the electrical resistance of the detecting sensor unit and the electrical resistance of the reference sensor unit.

    摘要翻译: 一种传感器,具有一对传感器单元,其中一个是检测传感器单元,另一个是参考传感器单元,其中每个单元包括具有中空部分的基板,具有桥的薄绝缘层,悬臂 或隔膜形状,设置在薄壁绝缘层的桥,悬臂或隔膜部分上的敏感膜和与敏感膜接触的一对电极,检测传感器单元的敏感膜部分露出 使得测量的气氛使得敏感膜的电阻随着要检测的气氛的物理量的变化而变化,并且参考传感器单元的敏感膜部分被密封在屏蔽容器内,使得电气 敏感膜的电阻不受容器外部大气物理量的变化的影响,由此绝对物理 基于检测传感器单元的电阻与基准传感器单元的电阻之差,由传感器的输出功率确定要检测的气氛量。

    Moisture sensor
    3.
    发明授权
    Moisture sensor 失效
    水分传感器

    公开(公告)号:US4760368A

    公开(公告)日:1988-07-26

    申请号:US856365

    申请日:1986-04-28

    CPC分类号: C08B15/005

    摘要: A moisture sensitive material prepared by cross-linking cellulose acetate through at least one selected from the group consisting of compounds containing two or more isocyanate groups; compounds containing two or more epoxy groups; compounds containing two or more carboxyl groups ##STR1## and acid anhydrides of carboxylic acids.

    摘要翻译: 通过使选自含有两个以上异氰酸酯基的化合物中的至少一种交联乙酸纤维素而制备的湿敏材料; 含有两个或多个环氧基的化合物; 含有两个或多个羧基的化合物和羧酸的酸酐。

    Moisture sensitive resistive element
    5.
    发明授权
    Moisture sensitive resistive element 失效
    湿敏电阻元件

    公开(公告)号:US4529642A

    公开(公告)日:1985-07-16

    申请号:US595407

    申请日:1984-03-30

    IPC分类号: G01N27/12 B32B15/08

    摘要: A moisture sensitive resistive element includes a substrate made of an electrically non-conductive material, first and second electrodes deposited on the substrate in a spaced relation to each other, and a moisture sensitive film deposited on the substrate covering both the first and second electrodes. The moisture sensitive film is formed by a material given by a formula: [--CH(C.sub.6 H.sub.4 SO.sub.3 X)--CH.sub.2 --].sub.n wherein X is any one of a hydrogen atom, metal atom, ammonium, urea, triethylenediamine, tetramethyleneguanidine and hexamethylenediamine, or formed by a mixture of the above material with a hydrophilic polymer which is any one selected from a group consisting of polyvinyl alcohol, methyl cellulose and polyamide resin.

    摘要翻译: 湿敏电阻元件包括由非导电材料制成的衬底,以彼此间隔开的关系沉积在衬底上的第一和第二电极以及沉积在覆盖第一和第二电极的衬底上的湿敏膜。 该湿敏膜是由下式所示的材料形成:[-CH(C 6 H 4 SO 3 X)-CH 2 - ] n,其中X是氢原子,金属原子,铵,脲,三亚乙基二胺,四亚甲基胍和六亚甲基二胺中的任何一种,或形成 通过上述材料与由聚乙烯醇,甲基纤维素和聚酰胺树脂组成的组中选择的任何一种的亲水性聚合物的混合物。

    Moisture responsive element with crosslinked organic membrane and
protective layering
    6.
    发明授权
    Moisture responsive element with crosslinked organic membrane and protective layering 失效
    具有交联有机膜的水分响应元件和保护层

    公开(公告)号:US4520341A

    公开(公告)日:1985-05-28

    申请号:US446405

    申请日:1982-12-02

    IPC分类号: G01N27/12 H01C3/00 H01C7/00

    CPC分类号: G01N27/121

    摘要: A moisture responsive element comprises a moisture responsive organic membrane in contact with electrically conductive members, in which the organic membrane consists essentially of a crosslinked organic polymer having a hydrophilic group. The element has excellent water and moisture resistance, long-term stability and excellent humidity response over a range of humidity from 0 to 100 percent. The moisture responsive element includes a protective layer of cellulose acetate and/or polyvinyl acetate.

    摘要翻译: 水分响应元件包括与导电构件接触的水分响应有机膜,其中有机膜基本上由具有亲水基团的交联的有机聚合物组成。 该元件在0至100%的湿度范围内具有优异的耐水和耐湿性,长期稳定性和优异的湿度响应。 水分响应元件包括乙酸纤维素和/或聚乙酸乙烯酯的保护层。

    Moisture sensitive material
    7.
    发明授权
    Moisture sensitive material 失效
    防潮敏感材料

    公开(公告)号:US4889561A

    公开(公告)日:1989-12-26

    申请号:US697932

    申请日:1985-02-04

    IPC分类号: C08B15/00 C08G18/64 G01N27/12

    摘要: A moisture sensitive material prepared by crosslinking cellulose acetate through at least one compound selected from the group consisting of compounds containing two or more isocyanate groups; compounds containing two or more epoxy groups; compounds containing two or more carboxyl groups ##STR1## and acid anhydrides of carboxylic acids.

    摘要翻译: 通过使选自含有两个以上异氰酸酯基的化合物中的至少一种化合物交联乙酸纤维素而制备的湿敏材料; 含有两个或多个环氧基的化合物; 含有两个或多个羧基的化合物和羧酸的酸酐。

    Optical pressure sensor
    8.
    发明授权
    Optical pressure sensor 失效
    光学压力传感器

    公开(公告)号:US4729240A

    公开(公告)日:1988-03-08

    申请号:US839731

    申请日:1986-03-14

    CPC分类号: G01L11/02

    摘要: A pressure sensor element includes a polymer optical conductor which includes a substrate, a first organic polymer film formed on the substrate, a second organic polymer film superposed on the first organic polymer film, and an optical reflecting film provided on a patterned end face of the first organic polymer film. The first organic polymer film portion within the pattern has a refractive index different from that of the substrate. The first organic polymer film portion outside the pattern has substantially the same refractive index as the substrate. The refractive index of the second organic polymer film is substantially the same as that of the first organic polymer film portion outside the pattern. At least either one of the refractive indexes of the first and second organic polymer films changes with pressure fluctuation.

    摘要翻译: 压力传感器元件包括聚合物光导体,其包括基板,形成在基板上的第一有机聚合物膜,叠置在第一有机聚合物膜上的第二有机聚合物膜和设置在第一有机聚合物膜的图案化端面上的光反射膜 第一有机聚合物膜。 图案内的第一有机聚合物膜部分的折射率与基板的折射率不同。 图案之外的第一有机聚合物膜部分具有与基底基本上相同的折射率。 第二有机聚合物膜的折射率与图案之外的第一有机聚合物膜部分的折射率基本相同。 第一和第二有机聚合物膜的折射率中的至少一个随着压力波动而变化。

    Moisture sensitive resistive element
    9.
    发明授权
    Moisture sensitive resistive element 失效
    湿敏电阻元件

    公开(公告)号:US4902571A

    公开(公告)日:1990-02-20

    申请号:US609537

    申请日:1984-05-15

    IPC分类号: G01N27/12

    摘要: A moisture sensitive resistive element includes a substrate made of an electrically non-conductive material, first and second electrodes deposited on the substrate in a spaced relation to each other, and a moisture sensitive film deposited on the substrate covering both the first and second electrodes. The moisture sensitive film is formed by a material given by a formula: [--CH(C.sub.6 H.sub.4 SO.sub.3 X)--CH.sub.2 --].sub.n wherein X is any one of a hydrogen atom, metal atom, ammonium, urea, triethylenediamine, tetramethyleneguanidine and hexamethylenediamine, or formed by a mixture of the above material with a hydrophilic polymer which is any one selected from a group consisting of polyvinyl alcohol, methyl cellulose and polyamide resin.

    Optical transmitter and DC bias control method

    公开(公告)号:US09641257B2

    公开(公告)日:2017-05-02

    申请号:US14422493

    申请日:2012-09-12

    IPC分类号: H04B10/564 H04B10/516

    摘要: An optical transmitter for modulating light from a light source to generate an optical transmission signal with use of a data sequence as an electric signal, the optical transmitter including: a mapping section for mapping the data sequence to be converted into multi-level data based on modulation multi-level degree information indicating multi-level degree of the modulation; a D/A converter for converting the multi-level data output from the mapping section into an analog signal; an optical modulator to be driven based on the analog signal output from the D/A converter, for modulating the light from the light source; and a bias control section for setting control polarity of DC bias control of the optical modulator based on the modulation multi-level degree information.