Research and design of laser topographic measurement system

2013 ◽  
Author(s):  
Li Li ◽  
Ming-tang Liu
Keyword(s):  
Measurement System ◽  
Research And Design ◽  
Topographic Measurement

Near‐infrared topographic measurement system: Imaging of absorbers localized in a scattering medium

1996 ◽  
Vol 67 (3) ◽  
pp. 730-732 ◽  
Author(s):  
Yuichi Yamashita ◽  
Atsushi Maki ◽  
Hideaki Koizumi
Keyword(s):  
Measurement System ◽  
Near Infrared ◽  
Scattering Medium ◽  
Topographic Measurement

Research and Design for High Precision Ultrasonic Distance Measurement System

2013 ◽  
Vol 442 ◽  
pp. 354-359 ◽  
Author(s):  
Hua Guo ◽  
Sheng Wen Yu
Keyword(s):  
Measurement System ◽  
Traditional Method ◽  
Measurement Method ◽  
Full Range ◽  
Digital Signal ◽  
Distance Measurement ◽  
Measurement Precision ◽  
Threshold Method ◽  
Main Factors ◽  
Research And Design

In this article, discussed the traditional method of ultrasonic distance measurement , analyzed the main factors that restrict to impove the precision, and according to the energy attenuation of ultrasonic transmission, designed a measurement method based on rebuilding the digital signal waveform, this method solved the measurement precision problem caused by the traditional threshold method, the accuracy is no longer affected by the attenuation of ultrasonic energy, achieved the consistency precision in full range, makes the measuring accuracy is nearly one hundred times higher than the threshold method.

scholarly journals Research and Design of Power Frequency Electric Field Measurement System

2019 ◽  
Vol 155 ◽  
pp. 740-745 ◽  
Author(s):  
Wenqiang Zhu ◽  
Jiang Guo ◽  
Guangzhou Zhang ◽  
Degui Yao ◽  
Songyang Zhang ◽  
...  
Keyword(s):  
Electric Field ◽  
Measurement System ◽  
Field Measurement ◽  
Electric Field Measurement ◽  
Power Frequency ◽  
Frequency Electric Field ◽  
Research And Design

Research and Design of Differential Gas Temperature Measurement System for Gas-Turbine Engines

2018 ◽  
Author(s):  
Zhanna Sukhinets ◽  
Artur Gulin ◽  
Anton Sukhinets ◽  
Mikhail Mekhrengin ◽  
Nikolai Prokonenko ◽  
...  
Keyword(s):  
Temperature Measurement ◽  
Gas Turbine ◽  
Measurement System ◽  
Turbine Engines ◽  
Gas Turbine Engines ◽  
Gas Temperature ◽  
Temperature Measurement System ◽  
Research And Design

scholarly journals A Surface Topographic Measurement System Using a Microfork.

1999 ◽  
Vol 65 (12) ◽  
pp. 1751-1755 ◽  
Author(s):  
Ken TAKAHASHI ◽  
Takeshi HATSUZAWA
Keyword(s):  
Measurement System ◽  
Topographic Measurement

Research and Design of a Spatial Attitude Measurement System for Drilling Tools

2011 ◽  
Vol 361-363 ◽  
pp. 353-359
Author(s):  
Chuan Xie ◽  
Ling Ling He ◽  
Bing Lin
Keyword(s):  
Mathematical Model ◽  
Measurement System ◽  
Autonomous Navigation ◽  
Azimuth Angle ◽  
Experimental Result ◽  
Attitude Measurement ◽  
Straight Line ◽  
Drilling Tools ◽  
Definition Of ◽  
Research And Design

Autonomous navigation research in the process of drilling has been a very challenging advanced topic and it requires the drill pole must adjust their own space attitude before the directional move. Strapdown inertial navigation has an explicit definition of the space attitude information which will be reflected by the inclination, the azimuth angle and the tool face angle specifically. For the defect in the open mathematical model solver of the spatial attitude information, we derive another mathematical model of the inclination, the magnetic azimuth angle and the tool face angle with the space coordinates transformation, the spatial straight line equation and the dog-leg angle’s definition and give the specific achievable plan by making use of the triple-axis accelerometer and the triple-axis magnetometer. The experimental result indicated that this plan can get the correct spatial attitude within ±0.1º error to the inclination and ±1.5º error to magnetic azimuth angle and the tool face angle. In addition, its cost is very low and the volume is very small, so it is really an ideal choice for the spatial attitude measurement system.

Sign in / Sign up

Export Citation Format

Share Document