26 May 2011 High resolution wide dynamic range distance sensor using spatial signal processing
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Abstract
This paper presents a non-intrusive, non-contact object distance mapping sensor using an Electronically Controlled Variable Focus Lens (ECVFL). The proposed sensor is a free-space-based optical sensor that uses ECVFL-based agile optics to direct light from a object that requires terrain height mapping. The presented compact design makes the proposed sensor ideal for use in environments where laser illuminated objects are in a hazardous environment such as in environments with radiation, heat, cold, harmful machine parts, etc. The proposed design uses a few optical components and smart detection optics for making its object distance/terrain measurements. The presented sensor can find potential remote sensing applications in ground and space vehicle maneuvering, machine parts inspection and in chemical, transportation and aerospace industries.
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Philip J. Marraccini, Nabeel A. Riza, "High resolution wide dynamic range distance sensor using spatial signal processing", Proc. SPIE 8026, Photonic Applications for Aerospace, Transportation, and Harsh Environment II, 80260D (26 May 2011); doi: 10.1117/12.885957; https://doi.org/10.1117/12.885957
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KEYWORDS
Sensors

Charge-coupled devices

Distance measurement

Environmental sensing

Mirrors

Signal processing

Spatial resolution

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