公开(公告)号：US10024709B2

公开(公告)日：2018-07-17

申请号：US15202261

申请日：2016-07-05

申请人： WITHINGS

发明人： Houcine Dassouli ,  Nicolas Genain ,  Joffrey Villard ,  Xavier Debreuil ,  Cédric Hutchings ,  Brice Brac de la Perriere

IPC分类号： G01G19/44 ,  G01G3/142 ,  G01G3/14

CPC分类号： G01G19/44 ,  G01G3/1414 ,  G01G3/142

摘要： A method for determining the weight of an entity/item to be weighed on a weighing device (1), the weighing device comprising at least a weight sensor and a control unit (4),the method comprising the following steps: /a/ collecting weight raw samples (WSi) of the total weight sensed at the weight sensor(s), at a sampling frequency (F0), and converting each of the weight raw samples (WSi) into digitalized weight raw samples (DSi), /b/ entering sequentially each of the digitalized weight raw samples (DSi) into a Butterworth filter, the latter issuing filtered weight samples (FSi), /c/ defining a rolling window (RW) containing a parametrized number NS of latest filtered weight samples (FSi), /d1/ determining, in the rolling window, the minimum (MIN) and maximum (MAX) values of filtered weight samples, /d2/ comparing the value of MAX−MIN with regard to a parametrized Threshold (T), /e/ if MAX−MIN is greater than Threshold (T), repeat steps /a/ to /d2/, and as soon as MAX−MIN is less than Threshold (T), output a final weight value (DV), obtained from one or more of the most recent filtered weight samples.

公开(公告)号：US20170284855A1

公开(公告)日：2017-10-05

申请号：US15511008

申请日：2015-09-17

申请人： ISHIDA CO., LTD.

发明人： Akihito SUZUKI ,  Makoto NAKATANI ,  Shizuo MINAMINO

IPC分类号： G01G3/142 ,  G01G19/18 ,  B65B61/28 ,  B25J9/00 ,  B65G47/90 ,  B65G47/91 ,  G01L1/22 ,  B25J15/06

CPC分类号： G01G3/142 ,  B25J9/003 ,  B25J15/0616 ,  B65B61/28 ,  B65G47/902 ,  B65G47/91 ,  G01G19/18 ,  G01G23/00 ,  G01G23/01 ,  G01L1/225 ,  G01L1/2287

摘要： A mass measurement device comprises a force sensor, a hose, a base part, an article-holding part, and a computation unit. The force sensor has a fixed end and a free end, and outputs a sensing signal in accordance with the magnitude of a force in a sensitivity direction. The hose is configured to pass suctioned air through it. The fixed end is fixed to the base part. The article-holding part is fixed to the free end, one end of the hose is connected to the article-holding part, and the article-holding part holds an article by air suction. The computation unit computes the mass of the article based on the sensing signal.

公开(公告)号：US06147312A

公开(公告)日：2000-11-14

申请号：US166113

申请日：1998-10-05

申请人： Harry E. Lockery

发明人： Harry E. Lockery

IPC分类号： G01G3/142 ,  G01L1/22 ,  G01G3/14 ,  G01G19/56

CPC分类号： G01L1/2268 ,  G01G3/142 ,  G01L1/2262

摘要： A strain gage bridge circuit and method for sensitivity equalization, particularly suitable for load cell devices for precision measurement. The sensitivity of opposing half-bridges in a strain gage bridge circuit is equalized by a pair of equal, fixed resistors connected across a bridge diagonal formed by the two half-bridges, and a third resistor connecting the junction of the two equal, fixed resistors to the center of the half-bridge with the highest sensitivity. The effective shunting of the most sensitive half bridge can be changed by changing the value of the third resistor, while the ratio of the two equivalent shunting resistance values remain exactly constant. The total load on the bridge diagonal also remains constant when the value of the third resistor is changed. Both sets of orthogonally arranged opposed half-bridges in a strain gage bridge circuit can be equalized independently when two sets of equalizing resistors are used.

摘要翻译： 一种应变计桥接电路及灵敏度均衡方法，特别适用于测力传感器的精密测量。 应变计桥接电路中相对的半桥的灵敏度由连接在由两个半桥形成的桥对角线上的一对相等的固定电阻器相平衡，以及连接两个相等的固定电阻器的结的第三电阻器 到半桥的中心具有最高的灵敏度。 通过改变第三电阻器的值可以改变最敏感的半桥的有效分流，而两个等效分流电阻值的比值保持精确恒定。 当第三个电阻的值改变时，桥对角线上的总负载也保持恒定。 当使用两组均衡电阻器时，应变计电桥电路中的正交布置的相对半桥的两组可以独立地均衡。

公开(公告)号：US4705126A

公开(公告)日：1987-11-10

申请号：US905876

申请日：1986-09-10

申请人： Kazufumi Naito

发明人： Kazufumi Naito

IPC分类号： G01G3/142 ,  G01G19/393 ,  G01G23/36 ,  G01G19/52 ,  G01G23/10 ,  G01L1/22 ,  G01L25/00

CPC分类号： G01G23/36 ,  G01G19/393 ,  G01G3/142

摘要： A signal processing circuit for a weighing apparatus comprises an amplifier circuit for amplifying a weight signal outputted from a weighing device, an active filter which serves to attenuate noise components in the weight signal from the amplifier circuit, and switches for selecting whether the active filter should function as a filter or a buffer according to a predetermined timing schedule.

摘要翻译： 一种用于称重装置的信号处理电路包括：放大器电路，用于放大从称重装置输出的加权信号，有源滤波器，用于衰减来自放大器电路的加权信号中的噪声分量，以及用于选择有源滤波器是否应该 根据预定的时间表，用作滤波器或缓冲器。

公开(公告)号：US3827514A

公开(公告)日：1974-08-06

申请号：US37348773

申请日：1973-06-25

申请人： WEIGH TRONIX

发明人： BRADLEY R

IPC分类号： B66C1/22 ,  B66C1/40 ,  B66C13/16 ,  B66C23/90 ,  B66D3/04 ,  G01G3/142 ,  G01G19/18 ,  G01G19/14 ,  G01G3/14 ,  G01L5/12

CPC分类号： G01G19/18 ,  B66C1/40 ,  B66C23/905 ,  B66D3/04 ,  B66D2700/028 ,  G01G3/142

摘要： A weight measuring hook block apparatus for cranes attachable between the crane and the hook or other load engaging device and usable on already existing cranes or as original equipment on hereafter constructed cranes comprises a hook block frame member supporting the ends of a substantially straight longitudinal bar which is elastically deformable in response to loading forces applied to the bar. A force applying member is positioned on the bar between the ends thereof to transmit forces to the bar which are exerted on the force applying member. One of the members is carried by the crane, and the remaining member is arranged to carry the load engaging device so that a load applied to one of the members causes the remaining member to exert reaction force on the bar to deform the bar elastically. Strain gauge means operatively mounted on the bar detect deformation of the bar caused by these forces and provide a measurable response indicating the weight of the load carried by the load engaging device. Means are provided on the hook block frame member to transmit a radio signal to the crane cab, the radio signal including information informing the operator of the magnitude of the load.

摘要翻译： 用于起重机和挂钩或其他负载接合装置之间可起重的起重机的重量测量钩块装置，可用于已经存在的起重机上或作为以下构造的起重机上的原始设备包括支撑基本上直的纵向杆的端部的钩形框架构件， 响应于施加到杆的负载力而弹性变形。 力施加构件在其两端之间的杆上定位，以将力施加到施加在施力构件上的杆上。 其中一个构件由起重机承载，并且剩余构件布置成承载负载接合装置，使得施加到其中一个构件的负载导致剩余构件在杆上施加反作用力以使杆弹性变形。 可操作地安装在杆上的应变计装置检测到由这些力引起的杆的变形，并提供可显示的响应，指示负载接合装置承载的载荷的重量。 装置设置在挂钩框架构件上以将无线电信号发送到起重机驾驶室，无线电信号包括通知操作者负载大小的信息。

公开(公告)号：US3737684A

公开(公告)日：1973-06-05

申请号：US3737684D

申请日：1971-09-29

申请人： TOYODA CHUO KENKYUSHO KK ,  TOYODA MACHINE WORKS LTD

发明人： KUNO H ,  SUZUKI K ,  ISHIKAWA M

IPC分类号： G01R17/16 ,  G01B7/16 ,  G01G3/142 ,  G01H11/06 ,  G01K7/20 ,  G01L1/22 ,  G01L9/06 ,  G01P15/12 ,  G01R17/00 ,  G01R19/00 ,  H01V

CPC分类号： G01P15/123 ,  G01L1/2268 ,  G01L9/065 ,  G01R17/00

摘要： A drift compensating system includes a detecting circuit having at least one semiconductor element to generate an output in proportion to a physical quantity to be applied thereto, a first terminal for providing the output, a switching element, a memory circuit connected to the first terminal through the switching element for memorizing the output upon closure of the switching element, and a second terminal connected to the memory circuit. Upon closure of the switching element the output is applied to the memory circuit to render the first and second terminals to be at the same potential to thereby cancel any drift. Upon a subsequent opening of the switching element, a potential difference appears between the terminals in accordance with any change of the output.

摘要翻译： 一种漂移补偿系统，包括具有至少一个半导体元件的检测电路，用于产生与要施加的物理量成比例的输出，用于提供输出的第一端子，开关元件，连接到第一端子的存储电路，通过 用于在开关元件闭合时存储输出的开关元件，以及连接到存储器电路的第二端子。 在开关元件闭合时，输出被施加到存储器电路，以使第一和第二端子处于相同的电位，从而消除任何漂移。 在随后打开开关元件时，根据输出的任何变化，在端子之间出现电位差。

公开(公告)号：US3692129A

公开(公告)日：1972-09-19

申请号：US3692129D

申请日：1971-04-12

申请人： HOWE RICHARDSON SCALE CO

发明人： PRATT CHAPIN A ,  GODWIN GILBERT A

IPC分类号： G01G3/14 ,  G01G3/142 ,  G01G19/02 ,  G01G23/16 ,  G01G23/37

CPC分类号： G01G3/14 ,  G01G3/142 ,  G01G19/021 ,  Y10S177/03

摘要： An electrical load cell-type weighing system having a plurality of load cells supporting a load-receiving structure and providing electrical potentials, the sum of which is a function of the weight of a load applied to the load-receiving structure. Summing resistor networks directly connect the load cell bridges independently of each other to a summing junction of a single ended operational summing amplifier. The potentials produced by the load cells are algebraically summed at the summing junction. Another disclosed feature pertains to a defective load cell testing circuit comprising a switch for selectively providing a short circuit connection across the output terminals of each load cell bridge to determine whether the load cell is defective. Another feature pertains to a special operational amplifier summing network which selectively provides weight measurements in different units of mass such as pounds and kilograms.

摘要翻译： 一种电力称重传感器型称重系统，其具有支撑负载接收结构并提供电位的多个称重传感器，其总和是施加到负载接收结构的负载的重量的函数。 求和电阻网络独立于ea直接连接称重传感器桥

公开(公告)号：US3670833A

公开(公告)日：1972-06-20

申请号：US3670833D

申请日：1970-08-25

申请人： YAWATA IRON & STEEL CO ,  MITSUBISHI STEEL MFG

发明人： TOMOHIKO AKUTA ,  SEYA ATSUMI ,  HASHIRIZAKI SHINYA

IPC分类号： G01G3/142 ,  G01G3/14

CPC分类号： G01G3/142 ,  Y10S177/08

摘要： Where a weighing load is detected as an electrical weighing signal with an oscillatory component due to various oscillations of the weighing elements, the oscillatory component is separated from the original weighing signal and after it is positively inverted in phase, the inverted separated signal is superposed on the original signal so that the weighing signal is obtained, with the oscillatory signal eliminated.

摘要翻译： 当由于称重元件的各种振荡而将称重负载检测为具有振荡分量的电子称重信号时，振荡分量与原始称重信号分离，并且在相位正反转之后，反相分离信号叠加在 原始信号，从而获得称重信号，消除振荡信号。

公开(公告)号：US3601209A

公开(公告)日：1971-08-24

申请号：US3601209D

申请日：1970-05-25

申请人： OWEN PAELIAN

发明人： PAELIAN OWEN

IPC分类号： G01G3/14 ,  G01G3/142 ,  G01G19/02

CPC分类号： G01G3/1406 ,  G01G3/142 ,  G01G19/024

摘要： A weighing system for weighing trucks while in motion having a plurality of adjacent but independent weighing platforms for each wheel or set of wheels wherein a portion of wheel loading of one wheel may be applied to one platform and a portion to another platform, or all to one platform without introducing weighing errors.

公开(公告)号：US3600670A

公开(公告)日：1971-08-17

申请号：US3600670D

申请日：1969-12-04

申请人： BLH ELECTRONICS

发明人： SENOUR DONALD A ,  LINGEL FRED J

IPC分类号： G01G3/14 ,  G01G3/142 ,  G01R17/10 ,  H01R13/6592 ,  H01R3/06

CPC分类号： G01G3/142 ,  G01G3/1406 ,  G01R17/105 ,  H01R13/6592

摘要： The effects of leakage resistance in a precision measuring system are minimized by providing a guard strip for shielding the power input terminals from the low-level signal output terminals in an electrical connector, by grounding the center tap of the secondary of the power input transformer, and by both twisting and shielding the pairs of power input leads and signal output leads.