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Special Issue "Optical Sensors for Flow Diagnostics II"

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Optical Sensors".

Deadline for manuscript submissions: 15 April 2023 | Viewed by 703

Special Issue Editors

Department of Mechanical Engineering, Aichi Institute of Technology,1247 Yachigusa, Yakusa-Cho, Toyota 470-0392, Aichi-Prefecture, Japan
Interests: pressure-sensitive paint; temperature-sensitive paint; optical measurement
Special Issues, Collections and Topics in MDPI journals
Institute of Fluid Science, Tohoku University, Sendai 982-8577, Japan
Interests: mars airplane; pressure and temperature-sensitive paint; low reynolds number; hypersonic flow; thermofluid dynamics; spacecraft thermal control
Special Issues, Collections and Topics in MDPI journals
Department of Modern Mechanical Engineering, Waseda University, 3-4-1 Ookubo, Shinjuku-ku, Tokyo 169-8555, Japan
Interests: pressure- and temperature-sensitive paint (PSP, TSP); pressure-sensitive molecular film (PSMP); single-molecule tracking (SMT)
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Following the success of our Sensors Special Issue entitled “Optical Sensors for Flow Diagnostics”, we would like to once again invite our colleagues from across the world to contribute their expertise, insights, and findings in the form of original research articles and reviews for the second edition of the Special Issue, entitled “Optical Sensors for Flow Diagnostics II”. 

The purpose of this Special Issue is to contribute to the state of the art by introducing the latest developments in optical pressure (oxygen) and temperature imaging sensors based on the photochemical reaction and their applications. This Special Issue welcomes submissions of original research, novel developments, and experimental studies on optical sensors and their application in optical sensing of thermofluid dynamics.

In recent years, the development of optical pressure (oxygen) and temperature sensors has been remarkable. A pressure sensor based on oxygen quenching has significantly improved the time response. With the improvement of high-speed cameras and the development of measurement methods and post-measurement image processing, the time and pressure resolutions of the pressure imaging measurements are greatly extended. Optical pressure sensors are also applied to measurements of deformed and free-flight objects. Temperature sensors are used not only to measure the temperature distribution, but also to carry out a wide range of applications such as measuring heat flux and shear stress, and visualizing boundary layer transitions. With the development of sensors, hardware, metrology, and post-image processing, we will be able to apply them to a wider range of measurements. We contribute to the development of new sensing technologies by featuring the latest research cases.

  • Pressure-sensitive paint (PSP);
  • Temperature-sensitive paint (TSP);
  • Pressure (oxygen) sensors;
  • Thermal sensors;
  • Luminescence;
  • Photochemical sensors;
  • Thermofluid dynamics;
  • Unsteady measurement;
  • High-speed imaging.

Optical pressure and temperature sensors, known as pressure- and temperature-sensitive paints, are photochemical sensors based on oxygen quenching and temperature quenching, respectively. These sensors have received increased attention in recent years and are being used by a wider range of researchers and engineers. Therefore, it is of great significance to feature these sensors in Sensors.

Prof. Dr. Yasuhiro Egami
Prof. Dr. Hiroki Nagai
Dr. Yu Matsuda
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

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Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Published Papers (1 paper)

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Photostability Enhancement of Dual-Luminophore Pressure-Sensitive Paint by Adding Antioxidants
Sensors 2022, 22(23), 9470; - 04 Dec 2022
Viewed by 514
Antioxidants were applied to a dual-luminophore pressure-sensitive paint (PSP), and the effects on photodegradation caused by exposure to excitation light were studied. Three types of antioxidants that are commonly used for the photostability enhancement of polymers were added to a dual-luminophore PSP, and [...] Read more.
Antioxidants were applied to a dual-luminophore pressure-sensitive paint (PSP), and the effects on photodegradation caused by exposure to excitation light were studied. Three types of antioxidants that are commonly used for the photostability enhancement of polymers were added to a dual-luminophore PSP, and degradation rates and pressure/temperature sensitivities were investigated by coupon-based tests. One-hour-long aging tests were performed in a pressure chamber with a continuous excitation light source under dry air and argon atmospheres at 100 kPa and 20 °C. As a result of the aging tests, a singlet oxygen quencher type antioxidant was found to reduce the degradation rate by 91% when compared with the dual-luminophore PSP without antioxidants. This implies that singlet oxygen has a dominant role in the photodegradation mechanism of the dual-luminophore PSP. Full article
(This article belongs to the Special Issue Optical Sensors for Flow Diagnostics II)
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