Force measuring apparatus of the vibratory string type
    101.
    发明授权
    Force measuring apparatus of the vibratory string type 失效
    振动弦类型的力测量装置

    公开(公告)号:US3963082A

    公开(公告)日:1976-06-15

    申请号:US573560

    申请日:1975-05-01

    Applicant: Eugen Meier

    Inventor: Eugen Meier

    Abstract: Improved force measuring apparatus of the one- or two- string type, including means for applying to the movable member of the apparatus a corrective force that compensates for nonlinearities in the response of the apparatus over the full range of travel of the pan carrier member between the no-load and full-load positions, thereby to produce a linear variation in the resulting oscillation frequency with respect to load. In the one-string embodiment, linearization means are provided for applying to the oscillatory string means a corrective force that varies quadratically with the displacement of the movable member over its full range between the no-load and full-load positions. In the two-string embodiment, decoupling spring means are provided for independently connecting the two strings in opposite senses between the frame and pan carrier members. The aforementioned linearization means and/or temperature compensation means are also provided for improving the operation of the two-string embodiment.

    Abstract translation: 一种或两种类型的改进的力测量装置,包括用于向装置的可移动部件施加补偿力的补偿力,该矫正力补偿装置在盘托架构件的整个行程范围内的响应中的非线性 无负载和满载位置,从而相对于负载产生的振荡频率的线性变化。 在一弦实施例中,提供了线性化装置,用于向振荡线装置施加随着可动构件在空载和满载位置之间的整个范围内的位移而二次变化的校正力。 在双线实施例中,提供了去耦弹簧装置,用于在框架和盘托架构件之间以相反的方向独立地连接两根绳。 还提供了上述线性化装置和/或温度补偿装置,用于改善双线实施例的操作。

    Zero deflection load transducer
    102.
    发明授权
    Zero deflection load transducer 失效
    零偏载荷传感器

    公开(公告)号:US3613441A

    公开(公告)日:1971-10-19

    申请号:US3613441D

    申请日:1970-01-19

    Applicant: US ARMY

    Inventor: PAPIRNO RALPH R

    CPC classification number: G01L1/083 G01L1/02

    Abstract: A LOAD TO BE MEASURED TENDS TO DEFLECT, CRUSH OR WARP A RING TYPE OF TRANSDUCER. HOWEVER, A SENSOR DETECTS THE SLIGHTEST DEFLECTION OR WARPING OF THE RING AND ACTUATES APPARATUS TO RESTORE THE RING SO THAT THE NET RESULT IS SUBSTANTIALLY ZERO DEFLECTION OF THE TRANSDUCER RING. THE FORCE REQUIRED OF THE APPARATUS, TO HOLD THE TRANSDUCER RING OR TO RESTORE THE RING TO ZERO DEFLECTION, IS PROPORTIONAL TO THE FORCE APPLIED TO THE RING. BY MEASURING THIS FORCE, BY A HYDRAULIC PRESSURE GAGE, FOR EXAMPLE, THE MAGNITUDE OF THE LOAD TO BE MEASURED CAN BE ASCERTAINED. IN SIMPLE TERMS, A "HEAVY DUTY" YET VERY SENSITIVE SCALE IS PROVIDED TO INDICATE LIGHT OR HEAVY WEIGHT OR FORCE. NEVERTHELESS, THE SENSING ELEMENT INCURS SUBSTANTIALLY ZERO DEFLECTION. AND, THIS IS TRUE EVEN WHEN COMPARATIVELY LIGHTWEIGHT AND INEXPENSIVE APPARATUS IS USED.

    Sensor, band, electronic device, and wristwatch-type electronic device

    公开(公告)号:US11536619B2

    公开(公告)日:2022-12-27

    申请号:US16330456

    申请日:2017-09-08

    Abstract: A sensor includes: an electrostatic-capacity-type sensor electrode layer having a plurality of sensing units; a reference electrode layer opposed to one main face of the sensor electrode layer; and a deformable layer disposed between the reference electrode layer and the sensor electrode layer, the deformable layer being to deform elastically due to application of pressure. The deformable layer is recessed between the sensing units or discontinuous between the sensing units. The reference electrode layer has a shaped portion between the sensing units.

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