公开(公告)号：US20190162587A1

公开(公告)日：2019-05-30

申请号：US16302161

申请日：2016-07-26

Applicant: A&D COMPANY, LIMITED

Inventor： Masahiro KANNO ,  Shunsuke KASAMATSU

IPC: G01G21/28 ,  E05D15/06

Abstract: Provided is a protective cover for a weighing instrument in which movement of a sliding door does not degrade over time. A protective cover (2) for a weighing instrument includes sliding doors (2L, 2R) defining a weighing chamber (5), an upper frame (11) formed at an upper edge of the sliding door, a lower frame (12) formed at a lower edge of the sliding door, an upper guide rail (17) disposed on the upper frame, and a lower guide rail (18) disposed under the lower frame, where the upper guide rail suspends the upper frame, and between the upper guide rail and the upper frame, balls (215) are disposed at a plurality of positions in a moving direction of the sliding door.

公开(公告)号：US20170160176A1

公开(公告)日：2017-06-08

申请号：US15308766

申请日：2014-06-16

Applicant: A&D COMPANY, LIMITED

Inventor： Masahiro KANNO ,  Yoshikazu NAGANE

IPC: G01N11/16 ,  G05B13/02

CPC classification number: G01N11/16 ,  G01N11/162 ,  G05B13/02 ,  G05B13/0205

Abstract: Provided are a method and device for improving a response speed in a measurement of viscosity of a fluid and obtaining a continuous smooth measurement graph. A viscometer includes a machine part that generates a shear rate in a sample, a machine drive, a shear rate changing means that outputs a target shear rate of the machine part, and a displacement detection sensor that measures displacement of the machine part, and performs feedback control to control a driving force of the machine drive so that an output value of the displacement detection sensor corresponds to the target shear rate and measures a viscosity of a sample, wherein a feedback gain is simply set for each measurement according to an optimum design or target shear rate.

公开(公告)号：US20150377759A1

公开(公告)日：2015-12-31

申请号：US14766224

申请日：2013-02-28

Applicant: A&D Company, Limited

Inventor： Naoto IZUMO ,  Masahiro KANNO

IPC: G01N11/16

CPC classification number: G01N11/16 ,  G01N11/00 ,  G01N11/14 ,  G01N2011/0026

Abstract: Provided is a new method to obtain a shear rate of a fluid and Provided are a program and a device for the method. In the method, a pair of vibrators (1,1) are vibrated by an electromagnetic drive (2) and a viscosity of the sample liquid (9) is calculated by measuring a driving current of a coil (2b), which has a step (S1) of calculating the viscosity (η) of the sample liquid (9), a step (S2) of calculating a driving force (F) on a center of a wet part of the vibrator from the driving current (I), and a step (S3) of calculating a shear stress (S) exerted on the sample liquid from the driving force (F) and a liquid contact area of the vibrator (A), wherein the shear rate (D) is calculated from a ratio between the shear stress (S) and the viscosity (S4).

Abstract translation: 提供了一种获得流体剪切速率的新方法，并提供了该方法的程序和装置。 在该方法中，通过电磁驱动器（2）振动一对振动器（1,1），并且通过测量线圈（2b）的驱动电流来计算样品液体（9）的粘度，该驱动电流具有步骤 （S）计算样品液体（9）的粘度（μegr）的步骤（S1）;从驱动电流（I）计算振动器的湿部的中心的驱动力（F）的步骤（S2） 以及从驱动力（F）和振动器（A）的液体接触面积计算施加在样本液体上的剪切应力（S）的步骤（S3），其中剪切速率（D）由比例 在剪切应力（S）和粘度（S4）之间。

公开(公告)号：US20230059297A1

公开(公告)日：2023-02-23

申请号：US17792080

申请日：2020-01-16

Applicant: A&D COMPANY, LIMITED

Inventor： Masahiro KANNO ,  Yoshikazu NAGANE

IPC: G01N5/04

Abstract: Provided is a moisture meter includes a mass scale for measuring a mass of a specimen, a heater for heat the specimen, a processor causes the moisture meter to control the heater to heat the specimen until a change in mass of the specimen becomes not more than a predetermined threshold and calculate a moisture content of the specimen, and a storage unit. The processor causes the moisture meter to execute a measurement of a moisture content a plurality of times by using, as the specimen, a standard substance for inspection having a predetermined theoretical moisture content with an arbitrary mass when being heated at a predetermined temperature, to calculate a standard deviation of a measured moisture content in the measurement executed the plurality of times, and a to evaluate an influence of an installation environment by determining whether the standard deviation is not more than a predetermined value.

公开(公告)号：US20220412860A1

公开(公告)日：2022-12-29

申请号：US17779503

申请日：2019-11-28

Applicant: A&D COMPANY, LIMITED

Inventor： Masahiro KANNO

IPC: G01N5/04

Abstract: Provided is a moisture meter including a mass measurement unit for measuring the mass of a specimen, a heater for heating the specimen, a control arithmetic unit configured to control the heating unit to heat the specimen until a change in the mass of the specimen becomes not more than a predetermined threshold and calculate the moisture content of the specimen, a timepiece for measuring a heating time, and a storage unit. The control arithmetic unit measures the moisture content of a standard substance for inspection and a heating time, diagnoses the presence/absence of an abnormality in the heating unit by comparing a measured heating time with a predetermined time as a set heating time stored in the storage unit in advance