A novel dichromic self-referencing optical probe SrO:Bi3+,Eu3+ for temperature spatially and temporally imaging

2016 ◽  
Vol 45 (34) ◽  
pp. 13317-13323 ◽  
Author(s):  
Jipeng Fu ◽  
Ran Pang ◽  
Lihong Jiang ◽  
Yonglei Jia ◽  
Wenzhi Sun ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Real Time ◽  
Temperature Sensor ◽  
Room Temperature ◽  
Optical Probe ◽  
Temperature Sensitive ◽  
Real Time Monitoring

A dichromic temperature sensitive probe was synthesized to construct an effective luminescence temperature sensor and to realize real-time monitoring of surface temperature transients from room temperature to 200 °C.

A Novel Capacitive Temperature Sensor for Real-Time Monitoring of Temperature in the Silicone Oil Fan Clutch

2015 ◽  
Vol 645-646 ◽  
pp. 662-669
Author(s):  
Qing Ying Ren ◽  
Li Feng Wang ◽  
Jian Qiu Huang ◽  
Qing An Huang
Keyword(s):  
Real Time ◽  
Temperature Sensor ◽  
Silicone Oil ◽  
Capacitive Sensor ◽  
Experimental Results ◽  
Temperature Sensitive ◽  
Real Time Monitoring ◽  
Temperature Changes ◽  
Lc Resonator ◽  
Bonding Technology

This paper presents a novel capacitive sensor for real-time monitoring of temperature in the silicone oil fan clutch. The structure of the temperature sensor is designed and fabricated by the Silicon-On-Glass (SOG) process based on the bonding technology. The silicone oil is designed as the temperature sensing materials in the capacitive sensor. The capacitance of the embedded sensor is changing with respect to temperature of the silicone oil fan clutch. Experimental results show that the sensor provides a sensitivity of 27.3fF/°C in the -30 to 40°C range, 58.2fF/°C in the 50 to 110°C rang. It is also demonstrated that the temperature sensitive capacitor can be integrated with a copper inductance antenna and tests as a passive wireless temperature sensor. The resonant frequency of the inductor-capacitor (LC) resonator changes with respect to the changing capacitance. Then temperature changes can be remotely determined towards a frequency spectrum study. Experimental results show that the LC type passive wireless sensor provides a sensitivity of 6.35kHz/°C in the -30 to 110°C range.

Design of Swimming Pool Temperature Dot Matrix Screen Display

2014 ◽  
Vol 556-562 ◽  
pp. 2208-2211
Author(s):  
Xue Feng Yang
Keyword(s):  
Water Temperature ◽  
Real Time ◽  
Room Temperature ◽  
Detection Method ◽  
Swimming Pool ◽  
Real Time Monitoring ◽  
Real Time Processing ◽  
The Core ◽  
Swimming Pool Water ◽  
Point Detection

According to the need of the real-time monitoring and displaying of the environment in many areas,to put forward a method of temperature monitoring and displaying, using STC11F32XE microcontroller as the core controller, DS18B20 as temperature acquisition chip, 32X64LED dot matrix screen as a display screen,using the mothod of multi point detection method,real-time monitoring of swimming pool water temperature and room temperature, real-time displaying of Multipoint collecting information, Real time processing the detected temperature, the page display to multipoint temperature display through the wireless remote control module,the system will alarm When the water temperature is too high or too low, to remind managers of real-time processing.To design a clear temperature display for the swimming pool,real time monitoring and controlling is very convenient,after the experimental verification, the system reaches the anticipative goal,the system is an ideal and effective.

Real-Time Bioluminescence Analysis of Escherichia coli O157:H7 Survival on Livestock Meats Stored Fresh, Cold, or Frozen

2018 ◽  
Vol 81 (11) ◽  
pp. 1906-1912 ◽  
Author(s):  
SEONG B. PARK ◽  
SHECOYA B. WHITE ◽  
CHRISTY S. STEADMAN ◽  
CLAY A. CAVINDER ◽  
SCOTT T. WILLARD ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Real Time ◽  
Bacterial Growth ◽  
Room Temperature ◽  
Storage Conditions ◽  
Escherichia Coli O157 ◽  
Production Environment ◽  
Real Time Monitoring ◽  
E Coli ◽  
C Storage

ABSTRACT Foodborne bacteria such as Escherichia coli O157:H7 can cause severe hemorrhagic colitis in humans following consumption of contaminated meat products. Contamination with pathogenic bacteria is frequently found in the food production environment, and adequate household storage conditions of purchased foods are vital for illness avoidance. Real-time monitoring was used to evaluate bacterial growth in ground horse, beef, and pork meats maintained under various storage conditions. Various levels of E. coli O157:H7 carrying the luxCDABE operon, which allows the cells to emit bioluminescence, were used to inoculate meat samples that were then stored at room temperature for 0.5 day, at 4°C (cold) for 7 or 9 days, or −20°C (frozen) for 9 days. Real-time bioluminescence imaging (BLI) of bacterial growth was used to assess bacterial survival or load. Ground horse meat BLI signals and E. coli levels were dose and time dependent, increasing during room temperature and −20°C storage, but stayed at low levels during 4°C storage. No bacteria survived in the lower level inoculum groups (101 and 103 CFU/g). With an inoculum of 107 CFU/g, pork meats had higher BLI signals than did their beef counterparts, displaying decreased BLI signals during 7 days storage at 4°C. Both meat types had higher BLI signals in the fat area, which was confirmed with isolated fat tissues in the beef meat. Beef lean and fat tissues contrasted with both pork fat and lean tissues, which had significantly higher BLI signals and bacterial levels. BLI appears to be a useful research tool for real-time monitoring of bacterial growth and survival in various stored livestock meats. The dependence of E. coli O157:H7 growth on meat substrate (fat or lean) and storage conditions may be used as part of an effective antibacterial approach for the production of safe ground horse, beef, and pork meats.

A high photoluminescence sensor for selective detection of cartap based on functionalized VBimBF4B ionic liquid-strengthened sulfur-doped carbon nanodots

2019 ◽  
Vol 43 (23) ◽  
pp. 8873-8881
Author(s):  
Ying Zhang ◽  
Dianwei Zhang ◽  
Jingmin Liu ◽  
Shuo Wang ◽  
Huilin Liu
Keyword(s):  
Ionic Liquid ◽  
Real Time ◽  
Room Temperature ◽  
Room Temperature Ionic Liquid ◽  
Carbon Nanodots ◽  
Selective Detection ◽  
Real Time Monitoring

A photoluminescence sensor based on functionalized room temperature ionic liquid-strengthened sulfur-doped carbon nanodots is developed for real-time monitoring of cartap.

scholarly journals An Optical Probe for Real-Time Monitoring of Self-Replicator Emergence and Distinguishing between Replicators

2021 ◽  
Author(s):  
Joydev Hatai ◽  
Yigit Altay ◽  
Ankush Sood ◽  
Armin Kiani ◽  
Marcel Eleveld ◽  
...  
Keyword(s):  
Chemical Composition ◽  
Real Time ◽  
Origin Of Life ◽  
High Throughput ◽  
Optical Probe ◽  
Analysis Time ◽  
Molecular Probe ◽  
Optical Monitoring ◽  
Real Time Monitoring ◽  
High Throughput Experimentation

Self-replicating systems play an important role in research on the synthesis and origin of life. Monitoring of these systems has mostly relied on techniques such as NMR or chromatography, which are limited in throughput and demanding when monitoring replication in real time. To circumvent these problems, we now developed a pattern-generating fluorescent molecular probe (an ID-probe) capable of discriminating replicators of different chemical composition and monitoring the process of replicator formation in real time, giving distinct signatures for starting materials, intermediates and final products. Optical monitoring of replicators dramatically reduces the analysis time and sample quantities compared to most currently used methods and opens the door for future high-throughput experimentation in protocell environments.

Applicability of Temperature Sensitive Paints for Measurement of Surface Temperature Distribution

2003 ◽  
Author(s):  
Q. Liu ◽  
J. S. Kapat ◽  
C. J. Douglass ◽  
J. Qiu
Keyword(s):  
Temperature Distribution ◽  
Surface Temperature ◽  
Room Temperature ◽  
Jet Impingement ◽  
Calibration Procedure ◽  
Temperature Sensitive ◽  
Operational Parameters ◽  
Target Plate ◽  
Surface Temperature Distribution ◽  
Acrylic Plate

Temperature sensitive fluorescent paints (TSP) provide a non-intrusive method for surface temperature measurement. The objective of this research is to identify application and operational parameters that have impact on the TSP calibration curve and demonstrate the method on a jet impingement experiment. In particular, the effects of painting process and lighting and viewing conditions are reported in this paper. TSPs are made by dissolving a polymer and fluorophore in a common solvent. The resulting liquid can be sprayed or brushed onto a surface. A calibration procedure and apparatus have been devised to calibrate the emission intensity of the fluorescent paints as a function of temperature. TSP has been calibrated between room temperature and 63°C. It is found that over this temperature range, calibration curves are within ± 0.8°C of each other irrespective of the number of paint coats (provided at least 3 coats are applied) and viewing and lighting angles. The TSP technique has been applied to a hot jet impinging on a transparent acrylic plate. The impingement side of the acrylic plate is coated with TSP that determines the instantaneous surface temperature distribution. The target plate was placed at 6 jet diameters from the nozzle. The temperature distribution obtained from the TSP clearly shows the stagnation area and flow transition of jet impingement flow.

Real-time monitoring of tablet surface temperature during high-speed tableting by infrared thermal imaging

2021 ◽  
pp. 102736
Author(s):  
Makoto Otsuka ◽  
Fumiya Funakubo ◽  
Takumi Suzuki ◽  
Yusuke Hattori ◽  
Kunihiko Tsutsui ◽  
...  
Keyword(s):  
Surface Temperature ◽  
Real Time ◽  
Thermal Imaging ◽  
High Speed ◽  
Real Time Monitoring ◽  
Infrared Thermal Imaging

Real-Time Monitoring of Epitaxial Processes by Parallel-Polarized Reflectance Spectroscopy

MRS Bulletin ◽  
1995 ◽  
Vol 20 (5) ◽  
pp. 49-55 ◽  
Author(s):  
Nikolaus Dietz ◽  
Klaus J. Bachmann
Keyword(s):  
Real Time ◽  
Low Cost ◽  
Normal Incidence ◽  
Optical Probe ◽  
Reflectance Spectroscopy ◽  
Industrial Applications ◽  
Monitoring And Control ◽  
Real Time Monitoring ◽  
Spectral Ellipsometry ◽  
Precise Control

The engineering of advanced micro-electronic circuits, optoelectronic devices, and integrated optical circuits requires precise control of the lateral dimensions and thicknesses of device features and of the stoichiometry and doping of epitaxial semiconductor regions. This is preferably achieved by real-time monitoring and control of the individual deposition and etching processes that constitute the processing sequence. The use of optical probe techniques for the real-time monitoring of etching and/or growth processes is favored because of their nondestructive character and their potential use in real-time feedback control. Some of these methods are ideal in monitoring the overall growth process and/or substrate temperature in industrial applications, requiring low cost and maintenance. For example, in situ reflectance-spectroscopy methods, such as dynamic optical reflectivity (DOS), spectral-resolved normal incidence reflectance spectroscopy (MRS), or pyrometric interferometry (PI), are successfully applied to various deposition processes and provide information on both the growth rate and the composition of the deposits. However, small changes in the reflectance (because of chemical interactions at the surface of the films with the reactants supplied from the vapor phase) are of the order of 10−3 to 10−4 and are hardly observable with normal-incidence reflectance techniques because of the high reflectivity of substrate/film interface, which is typically of the order of 40%–60% for many semiconductors.In order to increase the sensitivity to surface- and interface-related growth properties, alternative optical-observation methods such as reflectance difference spectroscopy (RDS), surface photoabsorption (SPA), and spectral ellipsometry (SE) have been developed.

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