第36卷，第5期 2016年5月
光谱学与光谱分析 Spectroscopy and Spectral Analysis
Vol. 36,No. 5+pp1598-1603
May,2016
Study on the Multi-Spectral True Temperature Pyrometer for Explosion
Transient of Thermo-Baric Explosives ZHANG Fu-cai',SUNXiao-gangl*,XING Jian
1. Harbin Institute of Technology, Harbin 150001, China 2. Harbin Engineering University, Harbin 150001, China
AbstractThe high temperature and destructive power, made it difficult to test the explosion temperature of thermo-baric explosive. To effectively assess heat damage effect of thermo-baric explosive, multi-spectral high temperature measurement system is applied to transient high temperature test of thermo-baric explosive. The emissivity and the true temperature of explosion flame are calculated by using the secondary measurement method. In the data acquisition system, the test instrument achieves data collection and transmission 5o0 me ters away in combination with optical fiber sensing technology and under the precondition to guarantee the par-ticipants safety. The measurement results show that the designed measurement system has the advantages of simple operation, high safety and better application prospect.
Keywords Thermo-baric; Multi-spectral; True temperature; Optical fiber sensing technology
中图分类号：TK311
Introduction
文献标识码：A
D0I: 10. 3964/j. issn. 10000593(2016)05-1598-06
rule and thermal damage effect. Thermo-baric has become the hotspot in research and development of mixed explosives(1-], Owe to short explosion time, violent change of temperature,
Thermo-baric has the feature of high explosion tempera-ture and great explosive energy. Therefore, it is difficult to test the explosion temperature. Traditional explosives mainly take metal fragments, thermal jet, etc. as the main killing and damaging means. Therefore, they are often used for dam-aging above-ground buildings, injuring or even killing above ground personnel. However, thermo-baric can burn violently after detonation and release a lot of heat energy within short time of period, thereby utilizing radiant heat energy to gener-ate killing and damaging force. Thermo-baric is mainly used to damage effective strength in caves, underground fortifica-tions, bunkers and other enclosed spaces. Therefore, the temperature of thermo-baric is an important index to measure the explosive force and it is important in study energy release
Received: 2014-12-07; accepted: 2015-04-06
safety and other factors in thermo-baric, it is difficult to measure the explosion flame temperature. In recent years, improvement of multi-spectral theory and development of de tection technology have laid foundation for measuring the true temperature in an explosion flame temperature field and pro vided the possibility for the detection of true temperature in an explosion flame temperature field. Multi-spectral thermome ter based on prismatic decomposition is applied widely thanks to its simple structure, low cost, flexible design, among oth ers.Harbin Institute of Technology successfully measured the true temperature of solid rocket wake flames-+ with prism multi-spectral thermometer, which proved that through elabo rate design and improvement, multi-spectral thermometer of prismatic decomposition type could be applied in a hostile en-
Foundation item: Special Project for Development of Major National Scientific Instrument and Equipment (2013YQ470767), Natural Science
Foundation of China ( 61405045 ), Project Funding of Science and Technology Department of Heilongjiang Province(12521487)
Biography: ZHANG Fu-cai, (1978—), doctoral student of Harbin Institute of Technology
Corresponding author
e-mail: 510132156@qq.com
e-mail: qingtengzfec@ yeah. net