Patents Assigned to Precision Instrument Co.
  • Patent number: 11967982
    Abstract: A method for real-time processing of a detection signal, wherein signal processing is respectively performed when a detection signal is converted from a high level to a low level or vice versa. A moment at which a level of the detection signal is converted is recorded as a start point. A status of the detection signal is then detected in real time at a current moment. A current time width is compared to a maximum interval width of pre-set interference signals, and signal levels are determined and recorded from the start point to the current moment. Using characteristics of different interference signals, anti-interference processing is performed by using a targeted edge positioning and width recognition method, so that the delay impact of filtering on signals is avoided, improving both the recognition precision of weighing data of a checkweigher and the overall performance of the checkweigher.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: April 23, 2024
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd, Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd, Mettler-Toledo International Trading (Shanghai) Co., Ltd
    Inventors: ShenHui Wang, JingKe Wang, ZhengQuan Liu, Qin Sun
  • Patent number: 11885666
    Abstract: Accurate weighing and measurement of fine materials is provided by a linear compensation apparatus and a weighing system. The linear compensation apparatus has a weight loading mechanism (10) with a bearing plate (11), a drive apparatus (12), and a measuring weight (13). The drive apparatus is mounted onto the bearing plate, the measuring weight is connected to the drive apparatus, and, by hoisting or lowering the measuring weight with the drive apparatus, loads from the bearing plate are adjusted. The linear compensation apparatus and the weighing system greatly reduce device costs and labor costs in a batching process, save time and effort, have no risk of cross-contamination, and achieve automated production operation.
    Type: Grant
    Filed: September 2, 2021
    Date of Patent: January 30, 2024
    Assignees: Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd, Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd, Mettler-Toledo International Trading (Shanghai) Co., Ltd
    Inventors: Jinjie Cai, Xiang Li, Zhihe Chao, Chenggang Ding, Xiaomin Zhang, Chunhui Li
  • Patent number: 11841282
    Abstract: A strain gauge (12, 21A, 21B, 25A, 25B, 31, 35, 41, 45) and method of manufacturing a strain gauge (12, 21A, 21B, 25A, 25B, 31, 41, 35, 45) against moisture penetration comprises or includes the step of producing a coated base or cover layer (14, 34, 44) by forming a moisture barrier coating (17) on the surface the latter.
    Type: Grant
    Filed: August 30, 2019
    Date of Patent: December 12, 2023
    Assignees: Mettler-Toledo (Changzhou) Precision Instrument Co. Ltd., Mettler-Toledo (Changzhou) Measurement Technology Co. Ltd., Mettler-Toledo International Trading (Shanghai) Co. Ltd., Mettler-Toledo GmbH
    Inventors: XiangQun Zhu, Zhiguo Shi, Lei Xu, Jean-Christophe Emery
  • Patent number: 11717151
    Abstract: A method for early diagnosis of keratoconus based on multi-modal data considers a mutual relationship between both eyes using four refractive maps for corneas of the both eyes and absolute corneal elevation data, and combines the deep convolutional network method, the traditional support vector machine (SVM) method in machine learning, and the elevation map enhancement method with adjustable best-fit-sphere (BFS) to identify sensitivity and specificity of a focus and balance the sensitivity and specificity. With multi-dimensional comprehensive judgment of a keratoconus morbidity with a patient as a unit, combined with binocular data including both manual selection features and deep network learning from big data, the diagnosis method has higher robustness and accuracy.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: August 8, 2023
    Assignees: SHANGHAI MEDIWORKS PRECISION INSTRUMENTS CO., LTD., EYE AND ENT HOSPITAL OF FUDAN UNIVERSITY
    Inventors: Yang Shen, Xingtao Zhou, Huijie Li, Chongyang Wang, Wenguang Chen, Jing Zhao, Meiyan Li, Yiyong Xian, Haipeng Xu, Lingling Niu, Wuxiao Zhao, Tian Han
  • Publication number: 20230190089
    Abstract: A method for early diagnosis of keratoconus based on multi-modal data considers a mutual relationship between both eyes using four refractive maps for corneas of the both eyes and absolute corneal elevation data, and combines the deep convolutional network method, the traditional support vector machine (SVM) method in machine learning, and the elevation map enhancement method with adjustable best-fit-sphere (BFS) to identify sensitivity and specificity of a focus and balance the sensitivity and specificity. With multi-dimensional comprehensive judgment of a keratoconus morbidity with a patient as a unit, combined with binocular data including both manual selection features and deep network learning from big data, the diagnosis method has higher robustness and accuracy.
    Type: Application
    Filed: August 5, 2021
    Publication date: June 22, 2023
    Applicants: SHANGHAI MEDIWORKS PRECISION INSTRUMENTS CO., LTD., EYE AND ENT HOSPITAL OF FUDAN UNIVERSITY
    Inventors: Yang SHEN, Xingtao ZHOU, Huijie LI, Chongyang WANG, Wenguang CHEN, Jing ZHAO, Meiyan LI, Yiyong XIAN, Haipeng XU, Lingling NIU, Wuxiao ZHAO, Tian HAN
  • Patent number: 11669147
    Abstract: A method for dynamically managing power consumption, as well as a wake-up method, is disclosed for a wireless weighing platform. The method is initialized by setting both light and deep sleep period, entering a normal operating state, and starting light sleep timing. As long as no weighing operation is detected and the light sleep period has not expired, the method seeks to detect the weighing operation. If the light sleep period expires with no weighing operation, a light sleep state is entered, by turning off a communication function and starting timing for the deep sleep period. If no weighing is when the deep sleep period has expired, the wireless weighing platform enters a deep sleep state, by turning off power supply other than that for an acceleration sensor. If the acceleration sensor detects an effective vibration while in the deep sleep state, the normal operating state is restarted.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: June 6, 2023
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd., Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: ShenJian Qian, Bo Shen, Jianke Liu, Yong Yang
  • Patent number: 11573120
    Abstract: A method for adjusting parameters of a device with a weighing sensor collecting environmental parameter data of an environment where the device is currently located or environmental parameter data during execution of an application by the device. A zero compensation parameter is calculated and updated, based on the data collected. The method is applicable to a moisture analyzer and also to a vehicle scale. In the moisture analyzer, the method is triggered and executed in the analyzer, correcting the zero compensation data by using the environmental parameter data of an environment or environmental parameter data during execution of an application by the analyzer. Dynamic and real-time adjustment of a compensation parameter overcomes the problem that the scheme of pre-setting fixed parameters for zero compensation cannot deal with the complex zero drift encountered in actual environments.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: February 7, 2023
    Assignees: Mettler-Toledo (Changzhou) Precision instruments Co., Ltd., Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Jianwei Wu, Jean-Christophe Emery
  • Patent number: 11445341
    Abstract: A dynamic weighing device has a plurality of weighing sensors that constitute a weighing sensor network via Ethernet. One of the weighing sensors is selected as a primary node, which performs time synchronization with the other nodes via a time synchronization protocol. Alternatively, the other nodes synchronize a time offset relative to the time of the primary node. Each weighing sensor continuously packetizes and sends a plurality of consecutive pieces of weighing information to a terminal apparatus. The terminal apparatus calculates a weighed weight result of the dynamic weighing device at the same moment, based on time information in the weighing information obtained through depacketization, In such a weighing sensor network, by means of the time synchronization, weighing data at each moment is accurate when the weighing data is processed on a terminal such as a meter, thereby improving the reliability of sampling.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: September 13, 2022
    Assignees: Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd., Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Dake Tan, Lifeng Cai
  • Patent number: 11378441
    Abstract: The present invention discloses a weighing and measuring system, comprising a weighing sensor network constituted by networking a plurality of weighing sensors, wherein in the weighing sensor network, each of subtasks into which a weighing task is split is assigned to each of weighing sensors in the weighing sensor network; and each of the weighing sensors respectively and independently executes the assigned subtask and exchanges task data through the weighing sensor network. The weighing sensors collaboratively process a weighing task, which no longer depends on an instrument or a computer, thereby reducing the cost of the whole system, and improving the tolerance level to environment. The collaborative processing mode also avoids the bottleneck of data communication information summarization.
    Type: Grant
    Filed: April 3, 2018
    Date of Patent: July 5, 2022
    Assignees: Mettler-Toledo (Changzhou) Precision instruments Co., Ltd., Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd
    Inventors: Feng Dai, Jianqiang Yang, GuoJun Xie, Jinquan Yu, Wenming Mao, Dake Tan
  • Patent number: 11054299
    Abstract: A weighing device (1) has a load-bearing portion (10) that supports an object being weighed, a plurality of transition portions (20), and a separation portion (30). The transition portions are positioned on the separation portion, and the load-bearing portion is positioned on the transition portions, with the transition portions connected to the load-bearing portion and the separation portion. A plurality of weighing sensors (40) are provided at a bottom of the separation portion. A support portion (50) is below the weighing sensors to provide support therefor. The weighing device simplifies the loading condition of weighing sensors and isolates the horizontal mechanical deformation/distortion of the weighing load-bearing mechanism. It also reduces the influence of mechanical deformation/distortion, thereby improving the weighing performance and the effectiveness of the weighing device.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: July 6, 2021
    Assignees: Mettler-Toledo (Changzhou) Precision instruments Co., Ltd., Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Wang Shenhui, Chen Dengyou, Zhang Song, Sun Qin
  • Patent number: 11029192
    Abstract: A high-capacity weighing module has a top plate weldment (10), a bottom plate weldment (30) and a pressure-bearing assembly (20) that is between the top and bottom plate weldments. Motion between the respective top and bottom plate weldments is restricted. This structure aids in easy installation and replacement of a sensor, and integrates the functions of anti-overturning and 360° inspection, and bottom stop. This makes the weighing module much more convenient to install than a conventional high-capacity module, and has a better safety function. The weighing module has advantage in terms of a simplified product structure, reduced cost of manufacture and maintenance, uncomplicated installation procedure, and higher safety and protection.
    Type: Grant
    Filed: September 9, 2019
    Date of Patent: June 8, 2021
    Assignees: Mettler-Toledo (Changzhou) Precision Instruments Co., Ltd., Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Rabin Shrestha, Tom Leahy, Ping Zhang, Ferenc Muranyi
  • Patent number: 10782201
    Abstract: A platform scale uses a method of detecting a center-of-gravity (COG) offset. A weight value of a load on a weighing platform is calculated. The weighing platform is allowed to reach a steady state. When the weight value exceeds a COG offset threshold, then a position of a load COG is calculated using a load COG position algorithm. Whether the calculated position is in a valid region of the weighing platform is determined. The weight value is displayed if the position is within the valid region; otherwise, the position of the COG is displayed. A display apparatus of the scale displays the weight value or the position of COG of the load. The platform scale alerts a user about a possible invalid weighing event by displaying an image indicative of the COG offset condition, ensuring effective and precise weighing.
    Type: Grant
    Filed: May 25, 2018
    Date of Patent: September 22, 2020
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Co. Ltd, Mettler-Toledo (Changzhou) Precision Instrument Co. Ltd, Mettler-Toledo International Trading (Shanghai) Co. Ltd
    Inventors: ZhiQiang Wang, YiWen Ge, GenJun Ji, ShaoWen Zheng, Douglas Bliss
  • Patent number: 9869638
    Abstract: The present invention relates to a method for detecting time-resolved fluorescence based on a principle of phase balanced frequency multiplication modulation. A stimulating light source modulated by using a baseband signal acts on a to-be-measured target to trigger fluorescence, so that the fluorescence intensifies and decays periodically; then, a frequency-doubled square signal is used to control a sampling period and divide an ascending period of the fluorescence into two and a decay period of the fluorescence into two; after independent sampling is performed separately, sampling differences of the two parts are separately calculated and then added to obtain an intensity representative value of a fluorescence signal and to obtain a concentration value of the to-be-measured target.
    Type: Grant
    Filed: July 23, 2014
    Date of Patent: January 16, 2018
    Assignee: Suzhou Helmen Precision Instruments Co., Ltd.
    Inventors: Kai Jiang, Yawei Tang, Ping Wang
  • Patent number: 9339182
    Abstract: An eye imaging system, including: a light source module; a radial splitting module; a common optical module; an image receiver; a power supply module for the light source module; a driver module for the image receiver; a processing-displaying module; and a motion driving module. The image receiver is an area array sensor. The motion driving module is connected to the light source module and drives the light source module to move in a radial direction of an upstream illuminating optical path formed by the light source module and the radial splitting module. The image receiver continually opens for exposure in a radial direction of a downstream observation optical path formed by the radial splitting module and the image receiver. The continual opening of the image receiver for signal acquisition is synchronous with the movement of the light source module.
    Type: Grant
    Filed: January 21, 2014
    Date of Patent: May 17, 2016
    Assignee: SHANGHAI MEDIWORKS PRECISION INSTRUMENTS CO., LTD.
    Inventors: Wenguang Chen, Sufeng Yan, Yue Wei, Zhaosong Kong
  • Patent number: 9304041
    Abstract: An atomic absorption spectrometer, including: a light source combination; a detection device; a flame atomization device; a hydride generation device; a graphite furnace atomization device; and an adjustment mechanism. The flame atomization device includes a flame atomizer. The hydride generation device includes a hydride atomizer. The graphite furnace atomization device includes a graphite furnace atomizer. An axis of the flame atomizer, an axis of the hydride atomizer, and an axis of the graphite furnace atomizer are adjusted by the adjustment mechanism to coincide with an optical axis of the light source combination.
    Type: Grant
    Filed: July 11, 2013
    Date of Patent: April 5, 2016
    Assignee: Shenyang Huaguang Precision Instrument Co., Ltd.
    Inventor: Peishi Xu
  • Patent number: D820132
    Type: Grant
    Filed: January 23, 2017
    Date of Patent: June 12, 2018
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd., Mettler-Toledo (Changzhou) Precision Instrument Co., Ltd., Mettler-Toledo International Trade (Shanghai) Co., Ltd.
    Inventors: Zehua Zong, Lei Gao, LiGang Chen
  • Patent number: D913983
    Type: Grant
    Filed: February 26, 2019
    Date of Patent: March 23, 2021
    Assignees: METTLER-TOLEDO (CHANGZHOU) MEASUREMENT TECHNOLOGY CO., LTD., METTLER-TOLEDO (CHANGZHOU) PRECISION INSTRUMENT CO., LTD., METTLER-TOLEDO INTERNATIONAL TRADING (SHANGHAI) CO., LTD.
    Inventors: Lijun Tong, YinXiu Zhang, WenWei Guo
  • Patent number: D914235
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: March 23, 2021
    Assignees: METTLER-TOLEDO (CHANGZHOU) MEASUREMENT TECHNOLOGY CO., LTD., METTLER-TOLEDO (CHANGZHOU) PRECISION INSTRUMENT CO., LTD., METTLER-TOLEDO INTERNATIONAL TRADING (SHANGHAI) CO., LTD.
    Inventors: Bo Zhao, Wenqin He
  • Patent number: D984916
    Type: Grant
    Filed: May 25, 2021
    Date of Patent: May 2, 2023
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd., Mettler-Toledo (Changzhou) Precision Instrument Co., Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Naiging Cao, Feibai Zhu, Kai Zhou, Edgar Kempf, Dieter Kontschak, Kostas Medugorac
  • Patent number: D1000633
    Type: Grant
    Filed: November 22, 2021
    Date of Patent: October 3, 2023
    Assignees: Mettler-Toledo (Changzhou) Measurement Technology Co., Ltd., Mettler-Toledo (Changzhou) Precision Instrument Co., Ltd., Mettler-Toledo International Trading (Shanghai) Co., Ltd.
    Inventors: Bo Zhao, Bo Zhou, ShuYi Xu