Comparison of the calibration of advanced staring FPA sensors to radiometric imaging IR sensors

1995 ◽  
Author(s):  
Paul D. Lavallee ◽  
Lucinda K. Griner ◽  
Eric J. Borg ◽  
Joseph G. Parker
Keyword(s):  
Ir Sensors

Subsurface imaging for panel paintings inspection: A comparative study of the ultraviolet, the visible, the infrared and the terahertz spectra

2015 ◽  
Vol 23 (1) ◽  
Author(s):  
A. Bendada ◽  
S. Sfarra ◽  
C. Ibarra−Castanedo ◽  
M. Akhloufi ◽  
J.−P. Caumes ◽  
...  
Keyword(s):  
Subsurface Imaging ◽  
Wide Spread ◽  
Ir Thermography ◽  
Complementary Information ◽  
Ir Sensors ◽  
The World ◽  
Panel Paintings ◽  
Temperature Maps ◽  
Illumination Source ◽  
Ir Reflectography

AbstractInfrared (IR) reflectography has been used for many years for the detection of underdrawings on panel paintings. Advances in the fields of IR sensors and optics have impelled the wide spread use of IR reflectography by several recognized Art Museums and specialized laboratories around the World. The transparency or opacity of a painting is the result of a complex combination of the optical properties of the painting pigments and the underdrawing material, as well as the type of illumination source and the sensor characteristics. For this reason, recent researches have been directed towards the study of multispectral approaches that could provide simultaneous and complementary information of an artwork. The present work relies on non−simultaneous multispectral inspection using a set of detectors covering from the ultraviolet to the terahertz spectra. It is observed that underdrawings contrast increases with wavelength up to 1700 nm and, then, gradually decreases. In addition, it is shown that IR thermography, i.e., temperature maps or thermograms, could be used simultaneously as an alternative technique for the detection of underdrawings besides the detection of subsurface defects.

Advanced Automatic Target Recognition (ATR) with Infrared (IR) Sensors

2021 ◽  
Author(s):  
Hai- Wen Chen ◽  
Neal Gross ◽  
Ravi Kapadia ◽  
Joseph Cheah ◽  
Mo Gharbieh
Keyword(s):  
Target Recognition ◽  
Automatic Target Recognition ◽  
Ir Sensors

scholarly journals Improvement of an InfraRed Pyroelectric Detector Performances in THz Range Using the Terajet Effect

2021 ◽  
Vol 11 (15) ◽  
pp. 7011
Author(s):  
Oleg V. Minin ◽  
Jaime Calvo-Gallego ◽  
Yahya M. Meziani ◽  
Igor V. Minin
Keyword(s):  
Internal Structure ◽  
Diffraction Limit ◽  
Noise Equivalent Power ◽  
Pyroelectric Detector ◽  
Optical Window ◽  
Ir Sensors ◽  
Thz Detection ◽  
Thz Range ◽  
Thz Applications

An infrared (IR) pyroelectric detector was investigated for terahertz (THz) detection using the principle of the terajet effect, which focuses the beam beyond the diffraction limit. The terahertz beam was coupled to the detector’s optical window through a two-wavelength-dimension dielectric cubic particle-lens based on the terajet effect. We experimentally demonstrate an enhancement of about 6 dB in the sensitivity under excitation of 0.2 THz without degradation of the noise equivalent power value. The results show that the proposed method could be applied to increase the sensitivity of various commercial IR sensors for THz applications that do not require modification of the internal structure, and it may apply also to acoustics and plasmonic detectors.

Erwärmung von Kugelgewindetrieben*/Heating of ball screws - Time- and position-dependent heat sources in thermal simulations and experiments

2015 ◽  
Vol 105 (07-08) ◽  
pp. 475-481
Author(s):  
W. Maier
Keyword(s):  
Ball Screw ◽  
Experimental Temperature ◽  
Heat Sources ◽  
Infrared Sensor ◽  
Transient Model ◽  
Ir Sensors ◽  
Thermal Transient ◽  
Thermal Simulations

In diesem Fachaufsatz wird die Entwicklung eines thermischen „Matlab Simscape“-Modells vorgestellt. Das geometrisch und zeitlich thermisch transiente Modell „SimTherm“ erlaubt die Berechnung der Erwärmung und Ausdehnung eines Kugelgewindetriebs. Das Modell wird anhand experimenteller Untersuchungen bezüglich der Temperaturverteilung validiert. Die Temperaturen der Kugelgewindetrieb-Spindel werden hierbei ortsvariabel mittels eines Infrarot (IR)-Sensors lokal auf der Spindeloberfläche ermittelt.   This paper presents the development of a thermal “Matlab Simscape“ model. The geometrically and timewise thermal-transient model called “SimTherm“ makes it possible to calculate the temperature and the expansion of ball screws. The model is validated with experimental temperature tests. The temperature of the ball screw spindle is established locally on the spindle surface by using an infrared sensor.

IR Sensors for Indoor Monitoring

2017 ◽  
pp. 365-380
Author(s):  
Fatih Erden ◽  
A. Enis Cetin
Keyword(s):  
Ir Sensors ◽  
Indoor Monitoring

scholarly journals Design and Fabrication of Automatic Sorting Machine using Arduino

2020 ◽  
pp. 85-90
Author(s):  
Kadole Pavan Prabhakar ◽  
Choudhury Rajat Kumar Pattnaik ◽  
Akash Kumar Nath ◽  
Aditya Dubey ◽  
KM Vishall Somaiya
Keyword(s):  
Embedded System ◽  
Human Error ◽  
Conveyor Belt ◽  
Conveyor System ◽  
Automatic Sorting ◽  
Manual Sorting ◽  
Ir Sensors ◽  
Different Types ◽  
Transport Line ◽  
Time Required

This work is based on Design of a transport line conveyor belt for sorting and arranging products based on their height using the IR sensors for detecting the object and mechanism to drive the conveyor belt. The project is locally controlled by the use of Arduino based embedded system. The automatic sorting and arranging machine are used to sort the different types of products based on the product height. This automation significantly reduces the time required for manual sorting in the production line of small/medium scale industries and hence it also decreases the percentage of human error during sorting/arranging. The products are placed on the transport line conveyor system and as it moves on the conveyor it is scanned by the IR sensor, depending on the height of the product these will be sorted into different bins automatically.

scholarly journals ARDUINO based accident prevention and auto intimation system

2020 ◽  
Vol 17 (3) ◽  
pp. 1275
Author(s):  
Palanisamy R ◽  
PLS Sai Kumar ◽  
Mekala Paavan Kiran ◽  
Ashutosh Mahto ◽  
Md. Irfan ◽  
...  
Keyword(s):  
Collision Avoidance ◽  
Black Box ◽  
Climatic Conditions ◽  
The Other ◽  
Motor Vehicles ◽  
The Road ◽  
Ir Sensors ◽  
Collision Mitigation ◽  
Collision Avoidance System ◽  
On The Road

<p>Often modern cars have a collision avoidance system built into them known as Pre-Crash System, or Collision Mitigation System in order to reduce the collision. But majority of vehicles on the road, especially heavy motor vehicles lack in such a system. In this paper, the implementation of the Collision Avoidance System is to reduce the risks of collisions at the hairpin bend on a Hilly track, Ghats, or other Zero visibility turns. The proposed system contains a set of IR sensors, LEDs, etc. It uses four IR sensors, which are placed on either side of the hairpin bend. The sensors are mutually exclusive and are connected to LEDs through wires. Based on the output of sensors, the LEDs will glow and start alerting the other vehicle approaching from the other end, Hence the drivers will decrease their speeds which would help in preventing collision. The LEDs will help the drivers in detecting the position of  the vehicles on either side of the bend. During climatic conditions like fog, snow, etc, the visibility of the drivers would decrease due to which they will not be able to see the LEDs, Hence, a collision may take place. To bring help as soon as possible to the injured, we have also made a proposed system which would alert the nearby hospitals that an accident has taken place. We have used Arduino UNO, GSM sim module and these will be kept inside a black box which will be inside the, car safe from breakage during the accident.<strong></strong></p>

scholarly journals Development of Spinning Monitor to Facilitate the Sider in Textile Mills

2020 ◽  
Vol 9 (1) ◽  
pp. 981-985
Keyword(s):  
Cloud Computing ◽  
Vital Role ◽  
Walking Distance ◽  
Prototype Model ◽  
Production Loss ◽  
Employment Opportunities ◽  
Textile Mills ◽  
Ir Sensors ◽  
The Status ◽  
Spinning Process

In India, textile mills occupy a vital role in exporting the quality materials and offering above 35 million people employment opportunities. In India Textile mills run over 24x7, siders working inside covering area of 500 meters working in the spinning process runs continuously to monitor and set right the yarn breakage instantly to minimize the production loss. During the spinning process, siders need to monitor around more than 2000 spindles at every instant of time, makes them restless and leads to the unproductive work due to continuous walk to cover the entire spindle area even though the yarns in many of the spindles is unbroken. Due to this, the efficiency of the sider, as well as production and its quality, is affected. To avoid this, prototype model developed with IR sensors arrangement in each spindle to monitor the broken yarn and shares the broken yarn spindle information to the respective sider through the android device and take the sider to the particular spindle location to set right the yarn through line follower robot. The output of the sensor continuously support to monitor the status of yarn as soon as it is noticed,Through android devices linked via cloud computing make the sider to have productive work in set right the yarn with very less effort. In this paper, the efficiency of the spinning mills is improved and eradicates continuous manual monitoring of yarn breakages by siders, reduces their time and walking distance per shift through integrating of simple IR sensors through cloud computing.

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