Results 31 to 40 of about 112,554,398 (214)

Anti-Interference Spectral Confocal Sensors Based on Line Spot

open access: yesSensors
Spectral confocal displacement sensors are non-contact optoelectronic sensors widely utilized for their high accuracy, speed, and ability to measure diverse surfaces.
Bo Wang   +4 more
doaj   +1 more source

In Situ Measurements for Plastic Zone Ahead of Crack Tip and Continuous Strain Variation under Cyclic Loading Using Digital Image Correlation Method

open access: yesMetals, 2020
Fatigue crack is one of the most common damage forms for aeronautical aluminum alloy. With crack propagation, the strain fields of the whole object surface and plastic zone (PZ) ahead of the crack tip are changing continuously.
Yan Zhao   +4 more
doaj   +1 more source

An autonomous multisensor in situ metrology system for enabling high dynamic range measurement of 3D surfaces on precision machine tools

open access: yes, 2016
Title on author’s file: An autonomous multisensor in-situ metrology system for enabling high dynamic range freeform measurement capability of precision machine tools2016-2017 > Academic research: refereed > Publication in refereed journal201804_a ...
Cheung, BCF   +3 more
core   +1 more source

A Cyclic Self-Calibration Method Based on a High-Precision Piston and Standard-Meter Water Flow Prover

open access: yesSensors
The standard meter water flow prover is widely used due to its mature technology and high work efficiency. However, the process of sending the standard meter for calibration is not only time-consuming and laborious but also introduces deviations due to ...
Xuemei Geng   +7 more
doaj   +1 more source

Development of in-situ SEM torsion tester for microscale materials

open access: yes, 2019
An in-situ SEM (scanning electron microscope) micro-torsion tester with high resolution is developed based on electromagnetism. The torque is controlled and measured using a coil-magnet component. The torsion angle is measured by a non-contact transducer
Wang, Sufang   +11 more
core   +2 more sources

Method for Non-Contact Measuring the Weight of Sturgeon in Intensive Aquaculture

open access: yesFishes
Weight information plays a pivotal role in sturgeon breeding and production management. However, manual measurement is time consuming and labor intensive due to the immense size of the sturgeon.
Junjie Hu   +5 more
doaj   +1 more source

Development of In Situ Sensors for Chlorophyll Concentration Measurement [PDF]

open access: yes, 2020
Chlorophyll fluorescence measurement is a sensitive and effective method to quantify and analyze freshwater and sea water phytoplankton in situ. Major improvements in optical design, electronic technology, and calibration protocol have increased the ...
Daoliang Li, Lihua Zeng
core  

Copernicus Marine in situ NetCDF Attributes list

open access: yes, 2023
This document is the list of the NetCDF format implemented within Copernicus Marine In Situ - Thematic Assembly Centre. See http://www.marineinsitu.eu  for In Situ TAC related information.
Copernicus Marine In Situ Tac Data Management Team,
core   +1 more source

DIC-hole drilling method for in-situ residual stress measurement [PDF]

open access: yes, 2019
Residual stress measurement carries an important significance in ensuring safety and reliability of steel structures. In order to simplify the measurement procedure and enhance flexibility of the conventional hole drilling method to adopt in in-situ ...
Lan-shu Chen   +3 more
core   +3 more sources

Determination of stress state in deep subsea formation by combination of hydraulic fracturing in situ test and core analysis: A case study in the IODP Expedition 319

open access: yes, 2013
[1] In situ test of hydraulic fracturing (HF) provides the only way to observe in situ stress magnitudes directly. The maximum and minimum horizontal stresses, SHmax and Shmin, are determined from critical borehole pressures, i.e., the reopening pressure
Ito, Takatoshi   +21 more
core   +1 more source

Home - About - Disclaimer - Privacy