公开(公告)号：US10801881B2

公开(公告)日：2020-10-13

申请号：US15901268

申请日：2018-02-21

Applicant: KISTLER HOLDING AG

Inventor： Thomas Wuhrmann ,  Adrian Hofmann ,  Manuel Aeschbacher

IPC: G01G23/01 ,  G01G21/26 ,  G01G19/02 ,  G01G19/03 ,  G01G3/13

Abstract: An apparatus for calibrating a weigh-in-motion (WIM) sensor embedded in a roadway includes an actuator, an applicator, a force sensor disposed between the actuator and the applicator, and a carriage supporting the actuator, the applicator and the force sensor, which carriage is selectively movable on a longitudinal support carried by a frame. The apparatus also includes a drive unit to move the applicator along the longitudinal support as well as a position sensor that detects a position of the calibration path relative to the WIM sensor. According to a method for calibrating a WIM sensor, the frame is positioned to straddle the WIM sensor. The applicator introduces along the calibration path at a succession of different positions, a reference force that is measured by the WIM sensor and the force sensor, and these measurements are compared to generate a calibration.

公开(公告)号：US20230296415A1

公开(公告)日：2023-09-21

申请号：US18184032

申请日：2023-03-15

Applicant: Kistler Holding AG

Inventor： Thomas Wuhrmann ,  Martin Stierli ,  Josua Hunziker

IPC: G01D9/32 ,  G01D15/06 ,  G01D5/18 ,  G01D9/10

CPC classification number: G01D9/32 ,  G01D15/06 ,  G01D5/185 ,  G01D9/10

Abstract: A system for operating a physical measuring chain includes a plurality of physical measuring components at a measuring location. Each of the physical measuring components includes at least one physical sensor, at least one physical transmission means and at least one physical evaluation unit. An identification code is detected of each physical measuring component, and a data network transmits detected identification codes to a data processing unit located remote from the measuring location. The data processing unit includes at least one software and measuring component data. The software reads out measuring component data for transmitted identification codes and thereby generates a digital measuring chain including at least one digital sensor, at least one digital transmission means and at least one digital evaluation unit and the data network transmits the digital measuring chain to a computer unit at the measuring location.