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1
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Modalmetric Fiber Optic Sensor for Security of Collections

100%
Życzkowski M.
Acta Physica Polonica A
|
2013
|
vol. 124
|
issue 3
428-431
EN
The main aim of the work is the integration of modalmetric sensor in one arm. The proposed sensor is a classical fiber optic cable whose measuring arm is upgraded with multimode sensor. The aim of the research is to assess the impact of modal changes for detection of mechanical disturbances and comparative assessment of detection capabilities of interferometer sensor, modalmetric sensor, and hybrid sensor for different types of excitations. The measurements concerns the area of fundamental research. The results can be used in the construction of sensors with corresponding characteristics and properties, especially to protect museum collections.
2
Content available remote

The Fiber-Optic Sensor for the Museum Collections Protection

100%
Życzkowski M.
Acta Physica Polonica A
|
2012
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vol. 122
|
issue 5
933-937
EN
The article describes the operation's rule of the fiber optic sensor in the modalmetric configuration. This type of sensor is described by comparatively simple construction, while retaining other features of fiber-optic sensors such as high sensitivity. This gives a very high potential application. In the paper possible application of the modalmetric sensor to protection of works of art and museum collections is presented. The advantage of its use is the ability to tie the fiber in structure of material. Moreover, the advantage of such type a sensor compared to existing solutions of security sensors is the reaction for vibration and touch. The paper presents the concept and results of the system optimization.
3
Content available remote

A Quantum Key as the Fiber Optic Security Sensor

64%
Życzkowski M., Kowalski M.
Acta Physica Polonica A
|
2013
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vol. 124
|
issue 3
606-609
EN
The paper describes the methodology of identifying an interference in the optical fiber. The paper presents the technology widely known as quantum key distribution. The quantum key distribution is based on the technique of constant comparison of quantum characteristics of the input light source and its characteristics at the end of the fiber optic. Methodology of presented work includes the evaluation of the functional objectives through the constructive assumptions for the laboratory models development. This paper presents the model of a system based on the comparison of polarization states of light quanta using two asymmetric Mach-Zender interferometers as transmitting and receiving systems to enable compensation of polarization state changes at the input and output of the fiber optics sensing cable. Continuous monitoring of the state of the reference signal, the specific changes of natural or ambient effects on the fiber will attempt to identify interference in the optical waveguide as a change of the polarization of the quantum states of the light. The authors indicate the possibility of using such fiber optic sensor as a security sensor to protect the extensive critical infrastructure facilities. In this article the future research conception of using compressed sensing algorithms for data compression in quantum key distribution systems is presented.
4
Content available remote

Balance of Polarization in a Hybrid Fiber Optic Sensor

51%
Życzkowski M., Szustakowski M., Markowski P., Karol M.
Acta Physica Polonica A
|
2013
|
vol. 124
|
issue 3
610-612
EN
This paper presents the effect of light polarization in a hybrid fiber optic sensor. The hybrid sensor is defined as a combination of interferometer sensor and modalmetric sensor. Hybrid sensor system is based on the effect of outputting interferometric sensor of interference as a result of changes made by the modalmetric system. Balance of polarization in the arms of classical interferometer sensor leads to improvement of contrast of interference pattern at the output of the interferometer. Aim of this study is to present a balance light polarization effects in a hybrid system.
5
Content available remote

Physical Properties of Fiber-Optic Sensor in New Dual Configuration

51%
Życzkowski M., Szustakowski M., Markowski P., Karol M.
Acta Physica Polonica A
|
2012
|
vol. 122
|
issue 5
938-941
EN
The main aim of the work is the integration of two different fiber-optic sensors: the Michelson interferometric sensor, the Mach-Zehnder interferometric, the Sagnac interferometric and modalmetric sensors. The proposed hybrid sensor is a classical interferometer whose measuring arm is upgraded with modalmetric sensor. The theme of research is to assess the impact of modalmetric sensor to interferometer and comparative assessment of detection capabilities of interferometric sensor, modalmetric sensor and hybrid sensor for different types of excitations. The described tests concern the area of basic researches. The results can be used in the construction sensors with corresponding characteristics and properties to the appropriate applications.
6
Content available remote

Interferometric Fiber Optics Based Sensor for Monitoring of the Heart Activity

51%
Życzkowski M., Szustakowski M., Ciurapiński W., Uziębło-Życzkowska B.
Acta Physica Polonica A
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2011
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vol. 120
|
issue 4
782-784
EN
The paper presents the concept of the interferometric fiber optic sensor system for human psycho-physical activity detection. A fiber optic sensor utilizes phase changes of propagating light to monitor patient's vital signs such as respiration cardiac activity, blood pressure and body's physical movements.
7
Content available remote

Multispectral Systems of Imaging Scenery in Critical Infrastructure Protection, Threat Identification and Recognition

45%
Karol M., Szustakowski M., Życzkowski M., Markowski P., Ciurapiński W.
Acta Physica Polonica A
|
2013
|
vol. 124
|
issue 3
459-462
EN
The surveillance system more often uses devices working on different bands that are used not only for detection but also to recognize and identify threats. The paper presents the possibility of protection, detection and identification of risks, achieved through the use of multispectral detection systems in critical infrastructure facilities. The authors consider the benefits of active sensors based on other wavebands, such as millimeter wave radar, terahertz cameras, infrared camera and shows the ability to detect and identify the target using data collected by the sensors. Also discussed the issue of fusion data from different sensors and opportunities that the whole system obtained by application of data fusion.
8
Content available remote

Research and Parameter Optimization of the Infrared Sensor for Eye Track

39%
Życzkowski M., Szustakowski M., Różanowski K., Murawski K., Karol M., Markowski P.
Acta Physica Polonica A
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2012
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vol. 122
|
issue 5
942-945
EN
This paper presents infrared sensor for eye tracking system for ophthalmology and truck drivers. System is based on camera and near infrared diode illuminator. We present test results of sensor detection at different operating parameters. Tests were chosen so as to see how the sensor behaves in difficult conditions, additionally tested whether long-term operation of the sensor has an impact on the examined person.
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