-
公开(公告)号：US3084551A
公开(公告)日：1963-04-09
申请号：US83138359
申请日：1959-08-03
Applicant: GARRETT CORP
Inventor： WESTMAN SYDNEY E
CPC classification number: G01L1/08 , G01L11/004
-
公开(公告)号：US2620657A
公开(公告)日：1952-12-09
申请号：US73107547
申请日：1947-02-26
Applicant: TINIUS OLSEN TESTING MACH CO
Inventor： STOVALL JR JOHN R
-
公开(公告)号：US07367242B2
公开(公告)日：2008-05-06
申请号：US11366014
申请日：2006-02-27
Applicant: Ning Xi , Yantao Shen
Inventor： Ning Xi , Yantao Shen
IPC: G01L1/10
CPC classification number: G01L1/08
Abstract: An active micro-force sensor is provided for use on a micromanipulation device. The active micro-force sensor includes a cantilever structure having an actuator layer of piezoelectric material and a sensing layer of piezoelectric material bonded together. When an external force is exerted on the sensor, the sensor deforms and an applied force signal is recorded by the sensing layer. The applied force signal is then fed back to the actuating layer of the sensor via a servoed transfer function or servo controller, so that a counteracting deformation can be generated by the bending moment from the servoed actuating layer to quickly balance the deformation caused by the external micro-force. Once balanced, the sensor beam comes back to straight status and the tip will remain in its equilibrium position, thus the sensor stiffness seems to be virtually improved so that the accurate motion control of the sensor tip can be reached, especially, at the same time, the micro-force can also be obtained by solving the counteracting balance voltage applied to the actuating layer.
Abstract translation: 提供用于显微操作装置的主动微力传感器。 有源微力传感器包括具有压电材料的致动器层和压电材料的感测层结合在一起的悬臂结构。 当外力施加在传感器上时，传感器变形，施加的力信号由传感层记录。 所施加的力信号然后通过伺服传递函数或伺服控制器反馈到传感器的致动层，使得可以通过来自伺服致动层的弯矩产生抵消变形，以快速平衡由外部引起的变形 微力。 一旦平衡，传感器光束返回到直线状态，并且尖端将保持在其平衡位置，因此传感器刚度似乎被实际改善，使得可以达到传感器尖端的精确运动控制，特别是同时 ，也可以通过求解施加到致动层的抵消平衡电压来获得微力。
-
公开(公告)号：US5341689A
公开(公告)日：1994-08-30
申请号：US54488
申请日：1993-04-30
Applicant: Richard Freudenberger
Inventor： Richard Freudenberger
Abstract: A pen force gage for a pen plotter for determining whether the force of a pen positioned by a pen support onto the surface of a drawing media in the pen plotter falls within an acceptable range. The pen force gage includes structure for aligning or positioning the gage within the pen plotter so as to enable the gage to measure the force of the pen; a pivotable arm configured at one end to interact with the pen support as the pen moves toward the surface of the media and at the other end to support a movable weight to determine the force to be applied by the pen on the surface of the media; and an indicator and a reference mark for determining whether the force falls within the acceptable range.
Abstract translation: 一种用于笔式绘图仪的笔力计，用于确定笔笔支架定位在笔式绘图机上的绘图介质的表面上的笔的力是否在可接受的范围内。 笔力计包括用于在笔式绘图机内对准或定位计量器的结构，以便使计量器能够测量笔的力; 当可移动的笔朝着介质的表面移动时，可枢转的臂被配置成在一端与笔架相互作用，并且在另一端支撑可移动的重物以确定将笔施加在介质表面上的力; 以及用于确定力是否在可接受范围内的指示器和参考标记。
-
公开(公告)号：US4366715A
公开(公告)日：1983-01-04
申请号：US212929
申请日：1980-12-04
Applicant: John H. Bradshaw
Inventor： John H. Bradshaw
CPC classification number: G01L11/004 , G01L1/08
Abstract: Apparatus for testing internal pressure of a pressurized container having a ball partially extending outwardly from a ball seat includes a vise for holding the container in a fixed position and a force generating transducer arranged to provide a force proportional to the internal pressure for moving an end of a lever arm against the ball and statically holding the ball in a position substantially midway between first and second extremities of the ball seat.
Abstract translation: 用于测试具有从球座部分向外延伸的球的加压容器的内部压力的装置包括用于将容器保持在固定位置的虎钳和设置成提供与内部压力成正比的力的力产生换能器 杠杆臂抵靠球并且将球静止地保持在球座的第一和第二末端之间的大致中间位置。
-
Patent Agency Ranking
公开(公告)号：US4318299A
公开(公告)日：1982-03-09
申请号：US127059
申请日：1980-03-04
Applicant: Richard Morf
Inventor： Richard Morf
CPC classification number: G01B13/08 , G01B7/125 , G01L1/08 , G01L5/0076 , G01N33/365
Abstract: A measuring funnel for determining the tension of slivers includes a stationary component having a funnel-shaped inlet opening and a movable component. The bore for the passage of the sliver continues in the movable component, and may have a section along which it continues to taper. The passage of sliver thereby exerts a force on the movable component in the direction of its travel. This force is compensated by pneumatic or electrical means, so that the movable component takes a balanced position for every sliver cross section. These balanced positions are then converted into corresponding signals by means of electrical or pneumatic sensors, which signals are either used for measuring the absolute sliver cross section or for regulating the sliver cross section to a set value.
Abstract translation: 用于确定条子张力的测量漏斗包括具有漏斗形入口和可移动部件的固定部件。 用于纱条通过的孔在可移动部件中继续，并且可以具有沿其继续渐缩的部分。 因此，条子的通过从而在可移动部件的行进方向上施加力。 该力通过气动或电气装置补偿，使得可移动部件在每条纱条横截面上均衡。 然后，这些平衡位置通过电气或气动传感器转换成相应的信号，该信号用于测量绝对条子横截面或用于将条子横截面调节到设定值。
-
公开(公告)号：US4091992A
公开(公告)日：1978-05-30
申请号：US790372
申请日：1977-04-25
Applicant: Ernest H. Stark
Inventor： Ernest H. Stark
Abstract: A force-balance transmitter for producing a pressure signal proportional to the enthalpy of air has a flapper associated with a nozzle and employs a control force acting on the flapper in opposition to a feedback force applied to the flapper by the controlled fluid pressure acting over the area of the nozzle, the control force being produced by the combination of forces exerted on the flapper by two resilient beams subjected to individual bending moments responsive to sensed temperature and sensed humidity respectively.
Abstract translation: 用于产生与空气焓成比例的压力信号的力平衡传感器具有与喷嘴相关联的挡板，并且采用作用在挡板上的控制力，以抵抗作用在挡板上的受控流体压力施加到挡板的反馈力 喷嘴的面积，控制力是通过分别经受响应于检测到的温度和感测湿度的各个弯矩而由两个弹性梁施加在挡板上的力的组合而产生的。
-
公开(公告)号：US3621418A
公开(公告)日：1971-11-16
申请号：US3621418D
申请日：1969-08-13
Applicant: COURTAULDS LTD
Inventor： BAKER BERNARD STUART
Abstract: A transducer comprising an electrical conductor located in the field of a permanent magnet or an electromagnet, whereby, by passing a current through the conductor, force will be caused to act between the conductor and the magnet, the transducer including a further electrical conductor connected in a circuit with the first-mentioned conductor so as to carry a current related to the current through the first-mentioned conductor and such as to tend to nullify the effect of that current to alter the field of the magnet linking the first-mentioned conductor. A transducer element is also claimed.
-
公开(公告)号：US2342141A
公开(公告)日：1944-02-22
申请号：US42889642
申请日：1942-01-30
Applicant: GEN ELECTRIC
Inventor： HANSEN JR ALBERT
IPC: G01L1/08
CPC classification number: G01L1/08
-
公开(公告)号：US20180306653A1
公开(公告)日：2018-10-25
申请号：US15771386
申请日：2016-03-30
Applicant: SHENZHEN UNIVERSITY
Inventor： Dong SU , Yueqin JIANG , Xiaohua BAO , Zhongliang YU
Abstract: A zero-strain soil pressure sensor includes a shell provided with a hydraulic oil cavity and a cavity located below the hydraulic oil cavity, a processor, an outer elastic film arranged at the upper end of the hydraulic oil cavity, an inner elastic film arranged between the hydraulic oil cavity and the cavity, an outer strain bridge circuit connected with the outer elastic film, an inner strain bridge circuit connected with the inner elastic film, a piston communicated with the hydraulic oil cavity, and a driving mechanism connected with the piston. The outer strain bridge circuit, the inner strain bridge circuit and the driving mechanism are electrically connected with the processor. The invention has the beneficial effect that the piston is driven by the driving mechanism to control the oil pressure in the hydraulic oil cavity, external soil pressure is balanced through the oil pressure to keep the outer elastic film in an non-deforming state all the time, and only the inner elastic film is deformed, so that the soil arch effect and soil displacement are avoided, and thus the liquid pressure measured by the inner elastic film is the soil pressure, and the measurement result is more accurate.
-
-
-
-
-
-
-
-
-
Search Results
27
records
(took 0.03 seconds)
