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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
System comparison of road adhesion measurements
 Mikulec, Roman ; Jůza, Petr (referee) ; Tokař, Stanislav (advisor)
This thesis presents a comparison of different methods for measuring road surface skid resistance and an assessment of whether there is a functional dependency in between measurement results of these methods. It consists of a description of the physical quantities, which are measured by these methods and equipment used for these measurements. The work includes the measurement and comparison of measurement outputs with each other. Among the measurement methods there can be seen similar development of their values, with two exceptions there is similar difference between the results of the measurement methods. When comparing the results XL Meter instrument seemed more accurate than the RaceLogic due to its higher frequency of data recording. By using numerical method of comparison between XL Meter device and multipurpose device TRT there was a constant by which the results differed from each instrument, with value of 0,35, using the method of interspacing the resulting differences of values by a line, the resulting constant by which the results differed between the devices had the value of 0,33.
Detailed record
System comparison of road adhesion measurements
 Mikulec, Roman ; Jůza, Petr (referee) ; Tokař, Stanislav (advisor)
This thesis presents a comparison of different methods for measuring road surface skid resistance and an assessment of whether there is a functional dependency in between measurement results of these methods. It consists of a description of the physical quantities, which are measured by these methods and equipment used for these measurements. The work includes the measurement and comparison of measurement outputs with each other. Among the measurement methods there can be seen similar development of their values, with two exceptions there is similar difference between the results of the measurement methods. When comparing the results XL Meter instrument seemed more accurate than the RaceLogic due to its higher frequency of data recording. By using numerical method of comparison between XL Meter device and multipurpose device TRT there was a constant by which the results differed from each instrument, with value of 0,35, using the method of interspacing the resulting differences of values by a line, the resulting constant by which the results differed between the devices had the value of 0,33.
Detailed record

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