A New Resistivity Measurement System for Deep Formation Imaging and High-Resolution Formation Evaluation

1990 ◽  
Author(s):  
J.F. Hunka ◽  
T.D. Barber ◽  
R.A. Rosthal ◽  
G.N. Minerbo ◽  
E.A. Head ◽  
...  
Keyword(s):  
High Resolution ◽  
Measurement System ◽  
Resistivity Measurement ◽  
Formation Evaluation

scholarly journals High-Resolution Atmospheric Sensing of Multiple Atmospheric Variables Using the DataHawk Small Airborne Measurement System

2013 ◽  
Vol 30 (10) ◽  
pp. 2352-2366 ◽  
Author(s):  
Dale A. Lawrence ◽  
Ben B. Balsley
Keyword(s):  
High Resolution ◽  
Measurement System ◽  
Current System ◽  
Low Cost ◽  
Structure Constant ◽  
Turbulence Structure ◽  
Quality Of Data ◽  
Airborne Measurement ◽  
Atmospheric Measurement ◽  
Atmospheric Variables

Abstract The DataHawk small airborne measurement system provides in situ atmospheric measurement capabilities for documenting scales as small as 1 m and can access reasonably large volumes in and above the atmospheric boundary layer at low cost. The design of the DataHawk system is described, beginning with the atmospheric measurement requirements, and articulating five key challenges that any practical measurement system must overcome. The resulting characteristics of the airborne and ground support components of the DataHawk system are outlined, along with its deployment, operating, and recovery modes. Typical results are presented to illustrate the types and quality of data provided by the current system, as well as the need for more of these finescale measurements. Particular focus is given to the DataHawk's ability to make very-high-resolution measurements of a variety of atmospheric variables simultaneously, with emphasis given to the measurement of two important finescale turbulence parameters, (the temperature turbulence structure constant) and ɛ (the turbulent energy dissipation rate). Future sensing possibilities and limitations using this approach are also discussed.

scholarly journals Development of a High-Resolution Underwater Gravity Measurement System Installed on an Autonomous Underwater Vehicle

2018 ◽  
Vol 15 (12) ◽  
pp. 1937-1941 ◽  
Author(s):  
Masanao Shinohara ◽  
Toshihiko Kanazawa ◽  
Hiromi Fujimoto ◽  
Takemi Ishihara ◽  
Tomoaki Yamada ◽  
...  
Keyword(s):  
High Resolution ◽  
Measurement System ◽  
Autonomous Underwater Vehicle ◽  
Underwater Vehicle ◽  
Gravity Measurement

scholarly journals Benchmark Sea Trials on a 6-Meter Boat Powered by Kite

2020 ◽  
Vol 10 (18) ◽  
pp. 6148
Author(s):  
Kostia Roncin ◽  
Morgan Behrel ◽  
Paul Iachkine ◽  
Jean-Baptiste Leroux
Keyword(s):  
High Resolution ◽  
Power Law ◽  
Measurement System ◽  
Averaging Method ◽  
Wind Measurement ◽  
Phase Averaging

This paper presents sea trials on a 6-m boat specifically designed for kite propulsion. The kite control was automatic or manual, dynamic or static, depending on the point of sailing. The measurement system recorded boat motion and load generated by the kite. A particular attention was paid to wind measurement with several fixed and mobile locations directly on the kiteboat or in the vicinity. A high resolution weather modelling showed that a classical power law, describing the wind gradient, was not satisfactory to get the wind at kite location. 5-min measurement phases were systematically recorded. In the end, 101 runs were carried out. Data were processed with the phase-averaging method in order to produce reliable and accurate results.

A new automatic and interactive tree ring measurement system based on a line scan camera

1992 ◽  
Vol 68 (1) ◽  
pp. 138-141 ◽  
Author(s):  
Régent Guay ◽  
Réjean Gagnon ◽  
Hubert Morin
Keyword(s):  
Image Processing ◽  
High Resolution ◽  
Tree Ring ◽  
Measurement System ◽  
Analysis Techniques ◽  
Image Processing And Analysis ◽  
Line Scan ◽  
Computerized Image Processing ◽  
On Line ◽  
High Resolution Images

A new automatic tree ring measurement system which uses computerized image processing and analysis techniques is presented. It is based on a line scan camera instead of a conventional TV camera so it can give high resolution images over long paths (many centimeters). On-line ring validation is possible by comparison with those on other radii. Also, the system is highly interactive so its decisions can be modified by the operator.

Research on Resistivity Measurement System of Submarine Sediment

2013 ◽  
Vol 455 ◽  
pp. 486-490
Author(s):  
Lai Jie Wu ◽  
Bin Ma ◽  
Yuan Hong Yang
Keyword(s):  
Measurement System ◽  
Cross Correlation ◽  
Resistivity Measurement ◽  
Matlab Simulation ◽  
Theoretical Derivation ◽  
Correlation Algorithm ◽  
Improve Accuracy ◽  
Voltage Signal ◽  
The Cross

This paper developed a resistivity measurement system on the platform of in-situ detector which based on seafloor drilling machine. In order to precisely process the weak voltage signal which outputted by the resistivity probe, the paper carried out the cross-correlation algorithm theoretical derivation and MATLAB simulation, then ported the algorithm to TMS320F28069 DSP processor and designed hardware. A mass of contrast experiment shows that the cross-correlation algorithm is an effective method to process weak signal. It can improve accuracy and anti-jamming ability of the submarine sediment resistivity measurement system. The method of submarine sediment resistivity measurement can be widely used in fields of marine geological survey, marine environment research, etc.

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