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    Closed-loop fluidic analog accelerometer
    3.
    发明授权
    Closed-loop fluidic analog accelerometer 失效
    闭环流体模拟加速度计

    公开(公告)号：US3672231A

    公开(公告)日：1972-06-27

    申请号：US3672231D

    申请日：1969-07-18

    Applicant: GEN ELECTRIC

    Inventor： SHINN JEFFREY N ,  RINGWALL CARL G

    IPC: F15C1/00 ,  G01P15/03 ,  G01P15/02

    CPC classification number: F15C1/005 ,  G01P15/038

    Abstract: Apparatus for sensing acceleration and generating an analog-type pressurized fluid signal proportional to the magnitude of the associated event. Linear acceleration as sensed by a flexuremounted inertial mass including a hollow, elongated spring member of the cantilever beam type having a first end rigidly fixed in position and a second unsupported end upon which the acceleration-sensitive inertial mass is mounted. The hollow portion of the spring member issues a fluid jet from the second unsupported end directed at fluid receivers, the flexure of the spring member causing distribution of the jet between the receivers in proportion to the magnitude of the acceleration. Fluid amplifier circuitry provides high gain and stabilization in the loop comprising the spring-mass device, receivers, fluid amplifier circuitry and a negative feedback circuit to obtain closed-loop null-type operation producing insensitiveness to changes in pressure of the fluid supplied to the hollow spring member. Angular motion acceleration is sensed by utilizing a cylindrical inertial mass connected along its longitudinal axis to two torsional spring members rigidly fixed in position at their far ends such that the cylindrical mass is subject to rotation in the presence of an angular motion acceleration.

    Fluidic spirometer
    4.
    发明授权
    Fluidic spirometer 失效
    液体螺旋桨

    公开(公告)号：US3608546A

    公开(公告)日：1971-09-28

    申请号：US3608546D

    申请日：1970-01-21

    Applicant: GEN ELECTRIC

    Inventor： SHINN JEFFREY N

    IPC: A61B5/087 ,  F15C1/00 ,  F15C1/14 ,  A61B5/08

    CPC classification number: F15C1/008 ,  A61B5/087 ,  F15C1/146

    Abstract: An expendable mouthpiece transducer, fluidic circuitry for preventing the breathed air from contaminating the nonexpendable portion of the spirometer, a fluidic integrator, timer and a three-gage readout form the basic elements of an improved spirometer. The transducer generates a pneumatic pressure signal proportional to airflow rate breathed therethrough and the integrator integrates the flow rate to obtain the volume of air breathed through the transducer over a period of time. The three gages are controlled by the timer for operation to determine the total volume breathed for 1 second, 3 seconds, and a total lung volume for 10 seconds. A fluidic preamplifier is connected between the transducer and integrator, and an additional fluidic amplifier provides a sufficient pressure output to actuate the timer.

    Device for indicating contamination of a fluid supply to a fluidic circuit
    7.
    发明授权
    Device for indicating contamination of a fluid supply to a fluidic circuit 失效
    用于指示流体供应给流体电路的污染物的装置

    公开(公告)号：US3678881A

    公开(公告)日：1972-07-25

    申请号：US3678881D

    申请日：1970-03-27

    Applicant: GEN ELECTRIC

    Inventor： SHINN JEFFREY N

    IPC: B01D35/143 ,  G01L9/00 ,  G01L19/12 ,  G01M13/00 ,  G01N15/06 ,  G01N33/00

    CPC classification number: G01N15/0618 ,  B01D35/143 ,  G01L19/12 ,  G01M13/00 ,  G01N15/06 ,  Y10T137/8275

    Abstract: A fluid flow filter having filter hole openings of a selected size or of size smaller than the smallest fluid opening in a fluid circuit being monitored by the contamination-indicating device is serially connected with a fluid flow restrictor for bypassing a small portion of the supply fluid. A pressuresensitive indicator is connected to the juncture of the filter output and restrictor for indicating the pressure state at the juncture. A high pressure state indicates negligible contamination of the fluid whereas a low pressure state indicates substantial contamination thereof.

    Abstract translation: 具有选定尺寸或尺寸小于由污染指示装置监测的流体回路中的最小流体开口的过滤器孔开口的流体流动过滤器与流体限流器串联连接，用于绕过供应流体的一小部分 。 压力指示器连接到过滤器输出和限流器的接合处，用于指示接合处的压力状态。 高压状态表示流体的可忽略的污染，而低压状态表示其实质上的污染。

    Temperature-compensating fluidic reference circuit
    8.
    发明授权
    Temperature-compensating fluidic reference circuit 失效
    温度补偿流体参考电路

    公开(公告)号：US3602240A

    公开(公告)日：1971-08-31

    申请号：US3602240D

    申请日：1970-03-09

    Applicant: GEN ELECTRIC

    Inventor： SHINN JEFFREY N ,  VOGELSANG THOMAS H

    IPC: F15C1/00 ,  F15C1/14 ,  F15C4/00

    CPC classification number: F15C1/146 ,  F15C1/002 ,  Y10T137/2082 ,  Y10T137/2147

    Abstract: A passive fluidic reference circuit includes at least a first fluid flow restrictor connected between a pneumatic supply pressure source Ps and the circuit output Pr, and second restrictor connected between the circuit output and a vent. The first and second restrictors are of types which obtain pressure drops thereacross varying with absolute temperature T as the functions Ps- Pr K1Ty omega and Pr K2Tz, respectively. Operation of the passive circuit and a temperature-sensitive fluidic circuit whose output pressure signal Po varies with temperature as (Po/Ps) (Ka/Tx) is made essentially insensitive to temperature changes for the conditions x y- z and (K2/K1) Ka which establishes a reference operating point Po Pr.

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