title: [Real-time measurement of detonation transient temperature].
abstract: Based on the spectral characteristic of the detonation temperature, the present paper presents a measurement system of transient multi-wavelength pyrometry with the theory of multi-wavelength thermometry. The FPGA was applied as the hardware developing platform and the high-speed linear CCD was utilized. Each module was controlled by FPGA to achieve the process of real-time data acquisition, storage and transmission. Using the multiple regression analysis method, the dynamic spectral waveforms were calculated. The two laser spectral lines, 630 and 532 nm, were used to calibrate the corresponding pixel sequence numbers and the No. 175 and No. 270 were confirmed. In this paper, the halide tungsten light was measured. The results show that the system can sample continuous spectrum signal at several different times; the CCD can stably work with 40 MHz clock and the frame scanning frequency can achieve 73 kHz.
authors.affiliation: Key Laboratory of Ultrafast Photoelectric Diagnostic Technology, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi'an 710119, China. zhjink@126.com
authors.forename: Jin-Kun
authors.initials: JK
authors.lastname: Zheng
authors.forename: Yong-Lin
authors.initials: YL
authors.lastname: Bai
authors.forename: Bo
authors.initials: B
authors.lastname: Wang
authors.forename: Bai-Yu
authors.initials: BY
authors.lastname: Liu
authors.forename: Wen-Zheng
authors.initials: WZ
authors.lastname: Yang
authors.forename: Xiao-Hong
authors.initials: XH
authors.lastname: Bai
authors.forename: Jun-Jun
authors.initials: JJ
authors.lastname: Qin
authors.forename: Jun-Ping
authors.initials: JP
authors.lastname: Zhao
authors.forename: Yong-Sheng
authors.initials: YS
authors.lastname: Gou
authors.forename: Hui
authors.initials: H
authors.lastname: Liu