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公开(公告)号：US11326933B2
公开(公告)日：2022-05-10
申请号：US16724052
申请日：2019-12-20
IPC分类号： G01G19/414 , H01L27/146 , G01G23/01
摘要： A weigh platter assembly includes a weigh platter and a parallax based off-platter detection assembly having a light emission assembly, a light detection assembly, and a controller. The light emission assembly has a light source to emit a light beam along a lateral edge of the weigh platter. The light detection assembly detects at least a portion of the light beam reflected from an object extending across the light beam and includes a sensor offset from the light source and an aperture positioned in front of the sensor and configured to limit a field of view of the sensor along the lateral edge between proximal and distal edges of the weigh platter. The controller is configured to provide a first signal in response to a first value received from the sensor and to provide a second signal, different from the first signal, in response to a second value.
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公开(公告)号：US11320300B2
公开(公告)日：2022-05-03
申请号：US16149732
申请日：2018-10-02
发明人： Gordon Bell
摘要： A method at a sensor apparatus affixed to a transportation asset. The method includes calibrating the sensor apparatus by initiating a vertical impact at the transportation asset, measuring spring oscillation and creating a model of the transportation asset. The method further includes detecting, subsequent to the calibrating, an impact event at the sensor apparatus. The method further includes measuring spring oscillation due to the impact event at the sensor apparatus and using the measured spring oscillation in the model created during calibration to create a load mass estimate for the transportation asset.
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公开(公告)号：US11320298B2
公开(公告)日：2022-05-03
申请号：US16933674
申请日：2020-07-20
发明人： Vyacheslav D. Kats
摘要： Apparatus and related methods are provided in a surface acoustic wave (SAW) scale for measuring weight of a load. A processor reads a first frequency of a SAW delay line operating in a first mode. A push oscillator injects a frequency similar to but different than the first frequency in order to cause the SAW delay line to operate in a second mode, and the processor reads a second frequency of the SAW delay line operating in the second mode. A difference between the frequencies is calculated and compared to values in a stored table to determine the first mode at which the SAW delay line was operating. Based on a determination of the first mode and the first frequency, the weight of the load is determined. This determined weight can be used to recalibrate an auxiliary weight sensor.
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公开(公告)号：US20220099481A1
公开(公告)日：2022-03-31
申请号：US17426970
申请日：2019-03-13
申请人： A&D COMPANY, LIMITED
发明人： Yoshikuni SATO , Yoshikazu NAGANE
摘要： A proposing an improvement in an installation environment of a weighing apparatus is made by including (a) a step of acquiring, weighed data of an object (7) to be weighed from a weighing sensor (13) together with time information, (b) a step of acquiring, environmental data together with time information, (c) a step of checking, with respect to the weighed data and the environmental data, whether an amount of change of the data per unit time or an average value of the data is less than or not less than a threshold with reference to a threshold database (191) and determining influence on the apparatus, and (d) a step of making a proposal on the installation environment for each result of the determination with reference to an improvement proposal database (193).
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公开(公告)号：US20220057253A1
公开(公告)日：2022-02-24
申请号：US17445233
申请日：2021-08-17
申请人： Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd , Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd , Mettler-Toledo International Trading (Shanghai) Co., Ltd
发明人： Shenhui Wang , Qi Wan , JingKe Wang , Yu Zhang , YuPeng Zhao
摘要： A method is provided for measuring an energy efficiency of a quantitative weighing device. A data measurement part is formed by: recording a control time of fast charging, recording a control time of slow charging, recording a comparison prohibition time, and recording weighing data. A current device reliability parameter, a fast charging feed flow, and a slow charging feed flow are calculated, based on the comparison prohibition time and the control time of slow charging. The fastest feed time under a requirement of a target reliability parameter is calculated as the difference between the target reliability parameter and the calculated control reliability parameter. By using the method, application data, such as capability of a quantitative control device and energy efficiency of the quantitative weighing device, can be intuitively obtained. This facilitates commissioning, maintenance, and use of the quantitative weighing control device.
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公开(公告)号：US11231314B2
公开(公告)日：2022-01-25
申请号：US16709190
申请日：2019-12-10
申请人： Mettler-Toledo GmbH
IPC分类号： G01G23/01
摘要： A calibration weight assembly (100, 200, 300, 400, 500) has at least one calibration weight (150, 550, 750) and a transfer mechanism, and is used with a gravimetric force-measuring device (110, 210, 310, 410, 510) having a fixed region (111, 211, 311, 411, 511), a load-receiving region (112, 212, 312, 412, 512), and a measuring sensor (140, 540). The transfer mechanism has at least one poly-stable positioning element (561, 571), a first stable state of which defines a calibration position (KP) and a second stable state of which defines a resting position (RP) of the transfer mechanism. The at least one calibration weight can be coupled with the load-receiving region. The transfer mechanism, as actuated by the measuring sensor, transfers the at least one calibration weight from the calibration position to the resting position, or vice versa.
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公开(公告)号：US11162836B2
公开(公告)日：2021-11-02
申请号：US16717450
申请日：2019-12-17
申请人： Right Weigh, Inc.
摘要： Systems and methods for calibrating an onboard vehicle scale may include disposing a vehicle upon a reference scale; determining reference weight information corresponding to a weight of at least a portion of the vehicle using the reference scale; automatically and wirelessly communicating the reference weight information to an onboard scale coupled to the vehicle; and automatically calibrating the onboard scale using the reference weight information.
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公开(公告)号：US20210333146A1
公开(公告)日：2021-10-28
申请号：US16857506
申请日：2020-04-24
申请人： Scale Truth, LLC
发明人： Eric McDonald , Benjamin Neeb
摘要： A method for remote monitoring of operating characteristics of a load cell is provided. The method includes receiving from a plurality of sensors, at a main unit, sensed data indicative of a plurality of operating characteristics of a load cell. The method continues by analyzing at a main unit the sensed data for statistical control and sending alerts to a remote computing device when sensed data of an operating characteristic is outside of a preset threshold. A system for carrying out the method is also provided. The system includes a main unit installed near a load cell, a first sub-unit coupled to a scale of the load cell in wired communication with the main unit, and at least one remote computing device in network communication with the main unit.
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29.发明申请公开(公告)号：US20210293682A1
公开(公告)日：2021-09-23
申请号：US16982695
申请日：2019-01-28
申请人： Mettler Toledo Precision Instrument Company Limited , Mettler Toledo Measurement Technology Company Limited , Mettler-Toledo International Trading (Shanghai) Co., Ltd.
发明人： Lei Xu , Jean-Christophe Emery
摘要： A high precision weighing system and weighing method has a weighing plate and weighing unit separation mechanism and a weight loading mechanism. The weighing plate and weighing unit separation mechanism controls separation of a weighing plate and a weighing unit, so that the weighing plate or the weighing plate and its carried material do not apply force to the weighing unit. The weight loading mechanism loads a weight onto the weighing unit or removes a weight from the weighing unit; the weighing system records a weighing value of the weighing unit during the action of the weighing plate and weighing unit separation mechanism and a sensitivity value during the action of the weight loading mechanism. The weighing system modifies the weighing value at the time of the most recent combination of the weighing plate and the weighing unit based on the recorded weighing and sensitivity values, achieving a high precision.
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30.发明授权公开(公告)号：US11085810B2
公开(公告)日：2021-08-10
申请号：US16483707
申请日：2018-02-06
申请人： GRIPTECH B.V.
摘要： A hydraulic mass-determining unit arranged for determining the mass of a load held by a hydraulic fluid system, the mass-determining unit is adapted to be connected to a hydraulic pump at a first fluid connection and a hydraulic actuator of a lifting device at a second fluid connection, the mass-determining unit comprises a first pipe arranged for connecting the first fluid connection and the second fluid connection, and at least one pressure sensor arranged to measure the pressure in the first pipe, wherein the mass-determining unit further comprises a flow regulator with a pressure compensator, where the flow regulator is serially connected to the first pipe to regulate the flow in the first pipe, and one of a pressure switch arranged for measuring the pressure difference over the flow regulator, and for sending a signal to the pressure sensor to measure the pressure in the first pipe when the pressure difference is above a preset value, or a magnetic field switch that comprises a magnet attached to the pressure compensator and a detecting unit arranged for detecting whether the magnet and the pressure compensator are in an initial position, and for sending a signal to the pressure sensor to measure the pressure in the first pipe when the detecting unit detects that the pressure compensator is not in the initial position, and a processor for based on the measured pressure in the first pipe by the pressure sensor calculating a mass of the load.
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