Journal
Scientific and technical journal «Priborostroenie»
UDK616.31-085: 677.016.413.6
Issue:4 (62)
Download PDF570 Kbyte
IN VIVO STUDY OF HUMAN TOOTH ENAMEL USING COLORIMETRIC DEVICE
Annotation
A colorimetric device for measuring the color parameters of tooth enamel in normal and erosive state in therapeutic dentistry is developed. A block diagram of the colorimeter and the graphic representation of spectral sensitivity of the receiving part of the device are presented. Metrological capabilities of the developed colorimeter are analyzed with the use of results of measurement by a certified device. Results of carried out calibration of the colorimetric device and the data of test measurements of chromaticity coordinates of certified and cataloged glass show that the colorimeter can be used to control diffusely reflecting objects. In particular, the device can be used in therapeutic dentistry to examine in vivo human tooth enamel in various states. Characteristics of the test samples were determined near marked points to confirm the results authenticity.
Keywords
Постоянный URL
Articles in current issue
- METHOD AND ALGORITHM OF CALCULATING THE ERROR OF PREDICTION OF TIME SCALES DISCORDANCE
- PREDICTING THE EXTENT OF FUNCTIONAL OBSOLESCENCE OF INFORMATION SYSTEMS BASED ON EXTRAPOLATION OF FUZZY EXPERT ESTIMATES
- SYMMETRICAL CRYPTOGRAPHIC SYSTEM WITH A SHARED MEMORY BASED ON RECURRENT BASES IN THE TASK OF KNAPSACK PACKING
- INFORMATION SECURITY OF AUTOMATED CONTROL SYSTEMS OF TECHNOLOGICAL PROCESSES
- EXPERIMENTAL SETUP FOR MEASURING ULTRA-LOW ELECTRIC RESISTANCES
- IDENTIFICATION OF ELECTROMECHANICAL PARAMETERS OF PRECISION ELECTRIC DRIVES
- USING SPACE-VECTOR PWM WITH VARIABLE MODULATION FREQUENCY IN MULTILEVEL INVERTERS OF PRECISION ELECTRIC DRIVE SYSTEMS
- APPLICATION OF OPTICAL SENSORS IN CONTROL SYSTEMS OF TRAIN TRAFFIC
- SPECTRAL METHOD FOR STABLE ESTIMATING THE DISTORTION PARAMETERS IN INVERSE PROBLEM OF IMAGE RESTORATION
- OPTIMIZATION OF HEAT-ACCUMULATING SYSTEM FOR COOLING ELECTRONIC DEVICE WITH HIGH-POWER SOURCES
- CONSTRUCTION OF A MODEL OF PIEZOACTUATOR CONSIDERING THE NON-RIGIDITY OF THE BASE
- IMPROVEMENT OF AN ELECTROMECHANICAL DEVICE FOR MEASURING ROTATION ANGLE
- EXTENSION OF ZONE WITH A CONSTANT REFLECTANCE FROM SPHERICAL SURFACES OF LARGE CURVATURE