Chemical substance measuring apparatus
    1.
    发明授权
    Chemical substance measuring apparatus 失效
    化学物质测量仪器

    公开(公告)号:US4568444A

    公开(公告)日:1986-02-04

    申请号:US724641

    申请日:1985-04-18

    CPC分类号: G01N27/4035

    摘要: An apparatus for measuring the quantities of chemical substances contained in a solution to be assayed by using a chemical-substance sensitive sensor consists of a potentiometric electrode which responds selectively to chemical substances, and a liquid-junction type reference electrode including a tube, a porous thread member housed in the front end opening of the tube and having a pore capacity of 0.2 cc/g or more and at least the surface of which is hydrophilic, a silver-silver chloride wire is provided and housed in the tube so that at one end of the wire is in contact with the thread member and the wire which extends along the tube. The wire is connected to a connector at the other end opening of the tube, an electrical insulating resin fills said tube, at least at the front end portion thereof, for fixing both the silver-silver chloride wire and the thread member by contact therewith and for stopping said tube. An internal solution is retained by suction in said porous thread member. This apparatus is advantageously used for monitoring the living body and may be thermally sterilized.

    摘要翻译: 用于测量通过使用化学物质敏感传感器测定的溶液中所含的化学物质的量的装置由选择性地对化学物质作出响应的电位电极和包括管的液体接合型参比电极,多孔 螺纹构件容纳在管的前端开口中,孔容量为0.2cc / g以上,至少其表面为亲水性,银 - 氯化银线被提供并容纳在管中,使得在一个 线的端部与螺纹构件和沿着管延伸的线接触。 导线连接到管的另一端开口处的连接器,电绝缘树脂至少在其前端部填充所述管,用于通过与其接触固定银 - 氯化银线和线构件, 用于停止所述管。 内部溶液通过吸力保持在所述多孔螺纹构件中。 该装置有利地用于监测生物体并且可以被热灭菌。

    Blood component monitoring system
    2.
    发明授权
    Blood component monitoring system 失效
    血液成分监测系统

    公开(公告)号:US4736748A

    公开(公告)日:1988-04-12

    申请号:US034026

    申请日:1987-04-03

    CPC分类号: G01N33/4925

    摘要: A blood component monitoring system for monitoring chemical substances of interest in blood, which includes a transfusion circuit including a flow-through cell adapted to be fluid-connected with a blood vessel through an indwelling catheter, a reservoir for accommodating a quantity of physiologically compatible sensor correcting solution, a connecting tubing extending between the reservoir and the flow-through cell and a transfusion pump; a detector unit including a temperature sensor and a chemical sensitive sensor device both incorporated inside the flow-through cell. A transfusion pump drive circuit is provided for controlling operation of the transfusion pump, a sensor drive circuit is provided for driving the temperature sensor and the chemical sensitive sensor device, a processing unit is provided for controlling both of the transfusion pump drive circuit and the sensor drive circuit and for reading respective outputs from the temperature sensor and the chemical sensitive sensor device and converting the outputs into respective measured values, and an output device is provided for externally outputting the measured values.

    摘要翻译: 一种血液成分监测系统,用于监测血液中感兴趣的化学物质,其包括输血回路,其包括适于通过留置导管与血管流体连接的流通细胞,用于容纳一定数量的生理学上相容的传感器 校正溶液,在储存器和流通池之间延伸的连接管和输血泵; 包括温度传感器和化学敏感传感器装置的检测器单元,两者都并入流通池内。 提供输液泵驱动电路,用于控制输液泵的运行,设置传感器驱动电路用于驱动温度传感器和化学敏感传感器装置,提供一个处理单元,用于控制输血泵驱动电路和传感器 并且用于从温度传感器和化学敏感传感器装置读取各个输出,并将输出转换成各自的测量值,并且输出装置用于从外部输出测量值。

    Method and device for compensating temperature-dependent characteristic
changes in ion-sensitive FET transducer
    3.
    发明授权
    Method and device for compensating temperature-dependent characteristic changes in ion-sensitive FET transducer 失效
    用于补偿离子敏感FET传感器温度依赖特性变化的方法和装置

    公开(公告)号:US4641249A

    公开(公告)日:1987-02-03

    申请号:US622250

    申请日:1984-06-19

    CPC分类号: G01N27/4148

    摘要: An ion activity monitoring device is disclosed, having a semi-conductor device including an ion-sensitive field-effect transistor, for detecting the activity of ions in a liquid medium of interest, and a temperature sensor, for detecting the temperature of the liquid medium of interest, a constant current circuit for supplying a drain current of a particular value to the transistor, and a processing circuit for calculating the concentration of the ions in the liquid medium of interest. The drain current is of a value satisfying the relationship of .vertline.Id/.beta..vertline..ltoreq.0.10 volt.sup.2, wherein Id represents the drain current and .beta. represents the channel characteristic value of the ion-sensitive field-effect transistor. A method for operating the transistor is also disclosed.

    摘要翻译: 公开了一种离子活性监测装置,其具有包括用于检测感兴趣的液体介质中的离子的活性的离子敏感场效应晶体管的半导体器件和用于检测液体介质的温度的温度传感器 用于向晶体管提供特定值的漏极电流的恒流电路,以及用于计算感兴趣的液体介质中的离子浓度的处理电路。 漏极电流为满足| Id /β|≤0.10V2的关系的值,其中Id表示漏极电流,β表示离子敏感场效应晶体管的沟道特性值。 还公开了一种用于操作晶体管的方法。

    Gas circuit breaker
    8.
    发明授权
    Gas circuit breaker 失效
    气体断路器

    公开(公告)号:US5850065A

    公开(公告)日:1998-12-15

    申请号:US782269

    申请日:1997-01-15

    IPC分类号: H01H33/78 H01H33/74 H01H33/72

    CPC分类号: H01H33/74 H01H2033/888

    摘要: A dielectric gas produced at the time of current interruption is exhausted into an exhaust structure 1 through an opening 8 formed on a fixed-side support member 6 combined with a fixed arcing contact 4. The exhaust structure 1 has an enlarged portion with a gas flow cross section formed at least before a position at 1/2 of the overall length of the exhaust structure 1 that is uniformly enlarged toward the rear of the exhaust structure 1 with respect to the joint between the exhaust tube 1 and the fixed-side support member 6. As a result, the gas is immediately exhausted into the exhaust structure 1 and the interelectrode insulation recovery performance is ensured.

    摘要翻译: 在电流中断时产生的电介质气体通过形成在与固定电弧触点4组合的固定侧支撑构件6上的开口8排放到排气结构1中。排气结构1具有扩大部分,其具有气流 至少形成在排气结构体1的整体长度的+ E,fra 1/2 + EE之间的位置相对于排气管1和 固定侧支撑构件6.结果,气体被立即排放到排气结构1中,并且确保了电极间绝缘恢复性能。

    Gas sensor with pH-sensitive FET transducer
    9.
    发明授权
    Gas sensor with pH-sensitive FET transducer 失效
    具有pH敏感型FET传感器的气体传感器

    公开(公告)号:US4409980A

    公开(公告)日:1983-10-18

    申请号:US293304

    申请日:1981-08-17

    摘要: A gas sensor which includes a reference electrode deposited on the surface of a pH-sensitive transducer having a gate-insulated field-effect transistor (FET) structure and adjacent a gate region of the FET, the transducer and reference electrode being housed in a flexible tube so that the gate region of the FET is located in an opening provided at the front end of or on the side wall of the tube. Lead wires connected to the FET and to the reference electrode extend along the tube. Between the inner wall of the tube and lead-wire FET bonding part is placed electrical insulation resin filling to stop the tube. A hydrophilic polymer layer containing electrolyte is provided which at least extends over both the FET gate region and a part of the reference electrode. A gas permeable membrane is laid over the polymer layer.

    摘要翻译: 一种气体传感器,包括沉积在具有栅极绝缘场效应晶体管(FET)结构并且邻近FET的栅极区域的pH敏感传感器的表面上的参考电极,换能器和参考电极被容纳在柔性 管,使得FET的栅极区域位于设置在管的侧壁的前端或其侧壁上的开口中。 连接到FET和参考电极的引线沿管延伸。 在管内壁和引线FET接合部分之间放置电绝缘树脂填充以停止管。 提供了含有电解质的亲水性聚合物层,其至少在FET栅极区域和参考电极的一部分上延伸。 将透气膜铺设在聚合物层上。

    Reference electrode of insulated gate field effect transistor
    10.
    发明授权
    Reference electrode of insulated gate field effect transistor 失效
    绝缘栅场效应晶体管参考电极

    公开(公告)号:US4269682A

    公开(公告)日:1981-05-26

    申请号:US968418

    申请日:1978-12-11

    CPC分类号: G01N27/414

    摘要: A reference electrode of an insulated gate field effect transistor having the surface of the gate region thereof coated with a hydrophobic organic polymer membrane. Since this reference electrode is much smaller in size than conventional reference electrodes, an integrated measurement system can easily be constructed by using this reference electrode. This measurement system is especially effective for measuring various ions in the living body.

    摘要翻译: 绝缘栅场效应晶体管的参考电极,其栅极区域的表面涂覆有疏水性有机聚合物膜。 由于该参考电极的尺寸比常规参考电极小得多,因此通过使用该参考电极可以容易地构建集成测量系统。 该测量系统对于测量活体中的各种离子特别有效。