Optical Design and Measurements of a Dynamic Target Monitoring Spectrometer for Potassium Spectra Detection in a Flame

Abstract An all-electric unmanned aerial system with both VTOL and Fixed wing capabilities is designed and optimized for long range surveillance, dynamic target monitoring and disaster relief operations. Such applications are common military practice. The UAV is equipped with onboard computers and sensors and is capable of carrying 1kg of relief payload upto 100 Km. The entire low fidelity design process- from concept to render is carried out using completely open-source tools, libraries and in-house code. A prototype is fabricated, integrated and tested as well. The challenges faced and primary differences are discussed parallelly. A comparison with commercial codes and programs is also done in some areas to give an overview of key capabilities and possible caveats.

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Research on calibration and data processing method of dynamic target monitoring spectrometer

Second Symposium on Novel Technology of X-Ray Imaging ◽

10.1117/12.2524750 ◽

2019 ◽

Author(s):

Zhiwei Li ◽

Xiang Ye ◽

Qianghua Han ◽

Fei Qi ◽

Haiyan Luo ◽

...

Keyword(s):

Data Processing ◽

Processing Method ◽

Data Processing Method ◽

Dynamic Target ◽

Target Monitoring

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Optical Projection System Design of the Infrared Dynamic Scene Simulator Based on DMD

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.552.69 ◽

2013 ◽

Vol 552 ◽

pp. 69-74

Author(s):

Quan Yong Li ◽

Da Mu ◽

Yu Nan Du ◽

Bo Qi Wu

Keyword(s):

Infrared Imaging ◽

Imaging System ◽

Optical Design ◽

Basic Structure ◽

Frame Rate ◽

Wave Band ◽

Projection System ◽

Dynamic Target ◽

Airy Disk ◽

Research Cost

Infrared dynamic target simulator can simulate infrared scene practicality in the laboratory, and reduce the research cost of the optical electrical system and offer recycle experiment environments， which are used to evaluate and test the infrared imaging system performance. Infrared scene projection technology based on the digital micro-mirror device (DMD) has been developed and applied to infrared target simulator, whose infrared images were obtained by modulating the launch of infrared radiation. Compared with the traditional simulator, the infrared scene simulator based on digital micro-mirror device (DMD) has a high spatial resolution and high frame rate, no dead pixels and good uniformity of characteristics. Firstly, the basic structure and the principle of the digital-mirror device are briefly introduced, and the kind and the advantage of the DLP(Digital Light Procession) system based on digital micro-mirror device (DMD) are analyzed. The key technology of the DLP(Digital Light Procession) projection system when it used in infrared wave band is analyzed. Secondly, the design process of the projection system is detailed. According to the design index required and the size of the digital micro-mirror device (DMD), a projection system consisting of three lenses and the transmissive type and aspheric technology was designed by ZEMAX optical-design software. The work wave-band is 8～12μm.The MTF curve is close to the diffraction limited curve and the size of the spot diagram is smaller than the airy disk. The result indicates that the system satisfies the design requirement and the structure of system is good.

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Use of the Magnetostatic Analogue In Electromagnetic Lens Engineering

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100068795 ◽

1970 ◽

Vol 28 ◽

pp. 360-361

Author(s):

John W. Coleman

Keyword(s):

Boundary Conditions ◽

High Performance ◽

Force Fields ◽

Optical Design ◽

Direct Conversion ◽

Design Engineering ◽

Design Data ◽

Scalar Potentials ◽

Geometric Elements ◽

At Will

In the design engineering of high performance electromagnetic lenses, the direct conversion of electron optical design data into drawings for reliable hardware is oftentimes difficult, especially in terms of how to mount parts to each other, how to tolerance dimensions, and how to specify finishes. An answer to this is in the use of magnetostatic analytics, corresponding to boundary conditions for the optical design. With such models, the magnetostatic force on a test pole along the axis may be examined, and in this way one may obtain priority listings for holding dimensions, relieving stresses, etc..The development of magnetostatic models most easily proceeds from the derivation of scalar potentials of separate geometric elements. These potentials can then be conbined at will because of the superposition characteristic of conservative force fields.

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