公开(公告)号：US10830635B2

公开(公告)日：2020-11-10

申请号：US16087271

申请日：2017-09-14

Applicant: A&D COMPANY, LIMITED

Inventor： Haruna Kawaguchi ,  Yoshikazu Nagane

IPC: G01G23/01 ,  G01G23/37 ,  G01G23/42 ,  G08C17/02

Abstract: To reliably exercise radio communication of calibration data. In order to achieve the above-described object, a balance (10) includes a weight sensor (12), a built-in weight (20) to be loaded on the weight sensor, an adding and removing unit (21) for the built-in weight, an arithmetic processing unit (14) configured to drive the adding and removing unit, and a radio communication device (41) connected to the arithmetic processing unit, wherein the arithmetic processing unit includes a radio wave environment check section (32) configured to check a radio wave environment, and a calibration execution section (33) configured to add or remove the built-in weight and issue a command to the radio communication device to transfer calibration data when the radio wave environment check section determines that the radio wave is good.