公开(公告)号：US10309869B2

公开(公告)日：2019-06-04

申请号：US15658518

申请日：2017-07-25

Applicant: A&D Company, Limited

Inventor： Mitsuharu Sugita ,  Yuta Egashira ,  Keisuke Yasuno

IPC: G01M15/02 ,  G01M15/04 ,  G01P3/36 ,  G01S17/58 ,  G01S17/88 ,  G01L1/25

Abstract: An engine test apparatus includes a dynamometer connected to an engine through a shaft, and a control device configured to control operations of the engine and the dynamometer, and the engine test apparatus further includes a speed measuring device configured to measure a rotation speed of the output shaft of the engine and transmit the rotation speed to the control device the control device includes an engine control unit configured to control operation of the engine, and a dynamometer control unit configured to control operation of the dynamometer, the dynamometer control unit uses the rotation speed transmitted from the speed measuring device to generate a torque current command corresponding to a torque value to be generated by the dynamometer, in order to operate the engine controlled to be operated by the engine control unit in an unloaded state as if the shaft and the dynamometer are not connected.

公开(公告)号：US10126161B2

公开(公告)日：2018-11-13

申请号：US15557668

申请日：2015-03-26

Applicant: A&D COMPANY, LIMITED

Inventor： Naoto Izumo ,  Satoshi Suzaki

IPC: G01G21/00 ,  G01G23/00 ,  G01G21/23 ,  G01G23/02 ,  G01G21/22 ,  G01G21/28

Abstract: Provided is an overload prevention mechanism having a structure that protects a weight sensor with a floating action and ensuring the reproducibility of the return position of the weight sensor. The overload prevention mechanism has a resilient member that is interposed between the weight sensor and the case, supports the weight sensor in a pressing manner against the case, and when a certain plate load or greater is imposed causes the weight sensor to separate from the case and thereby be released from the load, a guide member that is arranged in a standing manner between the weight sensor and the case, and a guide receiving seat that is provided in the weight sensor or the case and engages with the guide member.

公开(公告)号：US20180103617A1

公开(公告)日：2018-04-19

申请号：US15559964

申请日：2015-04-24

Applicant: A&D COMPANY, LIMITED

Inventor： Naoto IZUMO ,  Ken IHARA ,  Shunsuke KASAMATSU

IPC: A01K29/00 ,  A01K1/03 ,  G01G17/00 ,  G01G21/28

CPC classification number: A01K29/00 ,  A01K1/031 ,  G01G17/00 ,  G01G17/08 ,  G01G21/28

Abstract: Provided is an animal weighing scale that automatically measures a weight of an animal by a simple configuration. The animal weighing scale includes a breeding container for laboratory animals and a scale including a weighing pan supported by a weight sensor, the weighing pan is disposed inside a breeding space of the breeding container, and the weight sensor is disposed inside or outside the breeding space, and accordingly, based on a measurement value change when an animal inside the container is placed onto the pan, a weight change of the animal can be continuously recorded.

公开(公告)号：US20170367304A1

公开(公告)日：2017-12-28

申请号：US15526238

申请日：2014-12-12

Applicant: A&D COMPANY, LIMITED

Inventor： Naoto IZUMO

IPC: A01K29/00 ,  G01G19/414 ,  G01G19/02

CPC classification number: A01K29/005 ,  A01K1/03 ,  A01K1/031 ,  G01G17/08 ,  G01G19/021 ,  G01G19/414

Abstract: Provided is a system for observing and analyzing an animal behavior by utilizing a balance. The animal behavior observation system includes an animal container where an animal move around, a weight measuring apparatus that has a weight detecting unit for obtaining measurement data of the animal on the animal container, an analyzing device enabling calculation of a measurement value in accordance with the measurement data, a recording device that constantly stores the measurement value; and an output device that outputs the measurement value along a time axis.

公开(公告)号：US20150292965A1

公开(公告)日：2015-10-15

申请号：US14441718

申请日：2012-11-12

Applicant: A&D COMPANY, LIMITED

Inventor： Isao Sato

IPC: G01L1/22 ,  G01G3/14

CPC classification number: G01L1/2262 ,  G01G3/1402 ,  G01G23/005 ,  G01L1/2243

Abstract: [Problem] To increase basic performances of a load cell by forming nearly circular apertures at two positions of the load cell out of four thin sections, in all, of the load cell.[Means of Overcoming Problem] A load cell (10) includes a flexural element (12) in which a Roberval mechanism is formed by a pair of top and bottom parallel beams (14, 15) each including two thin sections (18) at a back and a front in a longitudinal direction, which are integrated with a fixed portion (16) and a movable portion (17), and strain gauges (20) bonded to the thin sections (18). Strain gauges (20) are bonded to one of the thin sections of pulling side (18a) and to one of the thin sections of compressing side (18b), and circular apertures are formed through the remaining two thin sections 18. The performances of the load cell such as the reduction of the measurement error and of the period of time before the start of the measurement are achieved.

Abstract translation: [问题]通过在负载传感器的四个薄部分中的两个位置处形成接近圆形的孔，来提高测力传感器的基本性能。 （克服问题的手段）称重传感器（10）包括弯曲元件（12），其中罗伯威机构由一对顶部和底部平行梁（14,15）形成，每个平行梁（14,15）包括两个薄部分（18） 与固定部分（16）和可移动部分（17）成一体的纵向方向的前部和连接到薄部分（18）的应变片（20）。 应变计（20）被接合到拉动侧（18a）的薄壁部分和压缩侧（18b）的薄壁部分之一，并且通过剩余的两个薄部分18形成圆形孔。 实现诸如测量误差的减小和测量开始之前的时间段的测力传感器。