Three-Dimensional Position-Measurement System for Indoor Flying Robot that Uses Ultrasonic Harmonic Waves

2018 ◽  
Author(s):  
Keita Nakano ◽  
Itaru Jinbu ◽  
Yasuyuki Sate ◽  
Kiyotaka Kato
Keyword(s):  
Measurement System ◽  
Three Dimensional ◽  
Harmonic Waves ◽  
Position Measurement ◽  
Flying Robot

An Acoustic System for Pipeline Profile Measurement

1983 ◽  
Vol 105 (4) ◽  
pp. 475-479
Author(s):  
H. Van Calcar
Keyword(s):  
Measurement Technique ◽  
Measurement System ◽  
Performance Enhancement ◽  
Three Dimensional ◽  
Profile Measurement ◽  
Baseline Measurement ◽  
Acoustic System ◽  
Position Measurement ◽  
Long Baseline ◽  
Hardware Configuration

This paper presents an acoustic position measurement system used for precise three-dimensional flowline profile measurement. The system measures several points along the flowline using the long-baseline measurement technique and augments this measurement with depth telemetry repeaters to maintain elevation accuracy throughout the changing installation geometry. The paper discusses both the measurement system and the performance enhancement features. The paper concludes with a discussion of the hardware configuration and the accuracy that can be expected when the technique is extended into deeper operating areas.

Dynamic Analysis of Head Movements by Means of a Three-Dimensional Position Measurement System

1990 ◽  
pp. 143-148
Author(s):  
Yoshimasa Watanabe ◽  
Hiroshi Ohtsuki ◽  
Hideki Okayama ◽  
Haruto Konishi ◽  
Yoshinobu Fujiwara ◽  
...  
Keyword(s):  
Dynamic Analysis ◽  
Measurement System ◽  
Three Dimensional ◽  
Head Movements ◽  
Position Measurement

Servo Design for a 3-D Laser-Tracking Measurement System

1996 ◽  
Vol 118 (3) ◽  
pp. 476-481 ◽  
Author(s):  
Jia-Yush Yen ◽  
Chao-Si Jeng ◽  
Kuang-Chau Fan
Keyword(s):  
Measurement System ◽  
High Speed ◽  
Optimization Technique ◽  
Three Dimensional ◽  
Laser Beams ◽  
Measurement Point ◽  
Position Measurement ◽  
Laser Tracking ◽  
Accuracy Measurement ◽  
Highly Nonlinear

This paper addresses the servo design for a real-time, laser-tracking, three-dimensional (3-D), position measurement system. The 3-D measurement system uses two sets of tracking mirrors to shine laser beams toward the measurement point. By examining the angles of these mirrors, one can calculate the position of this point. The servo loop in the measurement system corrects the mirror orientations by continuously checking and compensating the offset between the out going laser beam and the beam reflected from a retro-reflector attached to the measurement point. To achieve high speed and high accuracy measurement, the tracking servo system has to compensate for the highly nonlinear nature of the system and maintain the laser beams close to the measurement point. This paper derives the relationship between the tracking angle rotations and the measured beam offsets. By including this relationship in the system model, the linear H∞ optimization technique can be applied for controller synthesis. All the design specifications are then directly implemented.

Dynamic analysis of head movements by means of a three-dimensional position measurement system

1988 ◽  
Vol 226 (5) ◽  
pp. 418-424 ◽  
Author(s):  
Yoshimasa Watanabe ◽  
Hiroshi Ohtsuki ◽  
Hideki Okayama ◽  
Haruto Konishi ◽  
Yoshinobu Fujiwara ◽  
...  
Keyword(s):  
Dynamic Analysis ◽  
Measurement System ◽  
Three Dimensional ◽  
Head Movements ◽  
Position Measurement

A Three-dimensional Camera: Development and Applications of a Three-dimensional Image Measurement System

2011 ◽  
Vol 131 (2) ◽  
pp. 320-328 ◽  
Author(s):  
Cunwei Lu ◽  
Hiroya Kamitomo ◽  
Ke Sun ◽  
Kazuhiro Tsujino ◽  
Genki Cho
Keyword(s):  
Measurement System ◽  
Three Dimensional ◽  
Image Measurement ◽  
Dimensional Image
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