In order to achieve remote control of ultrasonic measurement system, an infrared communication-based ultrasonic measurement system is developed combining wireless communication technology with ultrasonic measurement technology. The hardware circuits of entire system and the achievement of several key technologies are discussed, including transducer structure and parameters selection, design of ...

Eight Danish Holstein cows were milked with a 1-mm thick specially designed soft liner on their right rear teat and a standard liner mounted under extra high tension on their left rear teat. Four of the animals were overmilked for 5 min. Rear teats were subjected to ultrasound examination on the first day and to infrared thermography on the second day. Teats were submersed in ethanol 20 min pos...

Non-destructive testing (NDT) refers to all the test methods, which permit testing or inspection of object without impairing its future usefulness. The aim of NDT is the detection of damages or unwanted irregularities like flaws, inclusions, material loss/degradation and local imperfections in material properties. Active infrared thermography is a nondestructive evaluation technique in which ma...

Candida-associated denture stomatitis is an infectious inflammatory condition of the oral mucosa, with frequent recurrences. The aim of this study was to assess the use of infrared thermography as investigation method for Candida-associated denture stomatitis (as inflammatory disorder of the maxillary denture bearing area), by comparing disease and non-disease groups. An observational study was...

INTRODUCTION Infrared thermal imaging (thermography) is a non-invasive method to measure skin temperature. The primary aim of this study was to examine the feasibility of thermography for the assessment of abdominal skin temperature in extremely low birthweight (ELBW) infants, with secondary aims to compare abdominal and thoracic skin temperature, and to explore potential relationships between ...

Infrared thermography is the preferred choice in many industrial processes for thermal diagnostics, condition monitoring, and non-destructive testing. However, the inherent uncertainty of surface emissivity affects the accuracy of temperature measurement by infrared thermography. In this paper a comprehensive experimental investigation was conducted to assess the uncertainty of infrared thermog...

The use of infrared thermography for the identification of lameness in cattle has increased in recent years largely because of its non-invasive properties, ease of automation and continued cost reductions. Thermography can be used to identify and determine thermal abnormalities in animals by characterizing an increase or decrease in the surface temperature of their skin. The variation in superf...

Identifying appropriate applications for technology to assess the health and safety of bridges is an important issue for bridge owners around the world. Traditionally, highway bridge conditions have been monitored through visual inspection methods with structural deficiencies being manually identified and classified by qualified engineers and inspectors. More advanced and objective bridge inspe...

The main goal of the study is to test the applicability of Infrared Thermography for verification of Thermal Boundary Conditions at external non-isothermal walls bounding the flow domain. Experimental and numerical studies have been made for transient and steady natural convection in a differentially heated cube filled with water. The analysis is carried out for pure convection of water in the ...

This paper describes the design of a second generation infrared thermography system for use in a re-entry vehicle. Due to the large number of contaminants such as hydrazine and partial oxidation of the surfaces the simultaneous observation of temperature and emissivity must be performed. To this end a multispectral concept was validated in laboratory tests and implemented in the design.