J 2016

Detection of visually unrecognizable braking tracks using Laser-Induced Breakdown Spectroscopy, a feasibility study

PROCHAZKA, David, Martin BILÍK, Petra PROCHAZKOVÁ, Michal BRADA, Jakub KLUS et. al.

Základní údaje

Originální název

Detection of visually unrecognizable braking tracks using Laser-Induced Breakdown Spectroscopy, a feasibility study

Autoři

PROCHAZKA, David (203 Česká republika), Martin BILÍK (203 Česká republika), Petra PROCHAZKOVÁ (203 Česká republika, domácí), Michal BRADA (203 Česká republika), Jakub KLUS (203 Česká republika), Pavel POŘÍZKA (203 Česká republika), Jan NOVOTNÝ (203 Česká republika), Karel NOVOTNÝ (203 Česká republika, garant, domácí), Barbora TICOVÁ (203 Česká republika, domácí), Albert BRADÁČ (203 Česká republika), Marek SEMELA (203 Česká republika) a Jozef KAISER (203 Česká republika)

Vydání

Spectrochimica Acta B, Elsevier, 2016, 0584-8547

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10406 Analytical chemistry

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 3.241

Kód RIV

RIV/00216224:14310/16:00093778

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000374073300013

Klíčová slova anglicky

Braking tracks; Forensic; LIBS; Tire treads; Laser-Induced Breakdown Spectroscopy

Štítky

Změněno: 3. 4. 2017 11:58, Ing. Andrea Mikešková

Anotace

V originále

Identification of the position, length and mainly beginning of a braking track has proven to be essential for determination of causes of a road traffic accident. With the introduction of modern safety braking systems and assistance systems such as the Anti-lock Braking System (ABS) or Electronic Stability Control (ESC), the visual identification of braking tracks that has been used up until the present is proving to be rather complicated or even impossible. This paper focuses on identification of braking tracks using a spectrochemical analysis of the road surface. Laser-Induced Breakdown Spectroscopy (LIBS) was selected as a method suitable for fast in-situ element detection. In the course of detailed observations of braking tracks it was determined that they consist of small particles of tire treads that are caught in intrusions in the road surface. As regards detection of the “dust” resulting from wear and tear of tire treads in the environment, organic zinc was selected as the identification element in the past. The content of zinc in tire treads has been seen to differ with regard to various sources and tire types; however, the arithmetic mean and modus of these values are approximately 1% by weight. For in-situ measurements of actual braking tracks a mobile LIBS device equipped with a special module was used. Several measurements were performed for 3 different cars and tire types respectively which slowed down with full braking power. Moreover, the influence of different initial speed, vehicle mass and braking track length on detected signal is discussed here.

Návaznosti

LQ1601, projekt VaV
Název: CEITEC 2020 (Akronym: CEITEC2020)
Investor: Ministerstvo školství, mládeže a tělovýchovy ČR, CEITEC 2020