Metamaterial-Inspired Rotation Sensor With Wide Dynamic Range

Wide Dynamic Range CMOS Potentiostat for Amperometric Chemical Sensor

Presented is a single-ended potentiostat topology with a new interface connection between sensor electrodes and potentiostat circuit to avoid deviation of cell voltage and linearly convert the cell current into voltage signal. Additionally, due to the increased harmonic distortion quantity when detecting low-level sensor current, the performance of potentiostat linearity which causes the detect...

Logarithmic Image Sensor for Wide Dynamic Range Stereo Vision System

Stereo vision is the most universal way to get 3D information passively. The fast progress of digital image processing hardware makes this computation approach realizable now. It is well known that stereo vision matches 2 or more images of a scene, taken by image sensors from different points of view. Any information loss, even partially in those images, will drastically reduce the precision an...

A Wide Dynamic Range CMOS Digital Pixel Sensor

A CMOS image sensor with pixel level analog to digital conversion is presented. Each 13.8μm x 13.8μm pixel area contains a photodiode and a dynamic comparator using the maximum voltage swing available (0V 1.8V). The comparator does not need any bias current and is insensitive to fabrication process variations. Also a digital to analog converter (DAC) is used to deliver a voltage reference in or...

Wide Dynamic Range

Wide-dynamic-range sensors

Orly Yadid-Pecht, MEMBER SPIE Ben-Gurion University of the Negev Electrical and Computer Engineering Department P.O. Box 653 Beer-Sheva 84105 Israel E-mail: [email protected] Abstract. The work done to provide image sensors (CCDs and CMOS) with a wide dynamic range is reviewed. The different classes of solutions, which consist of logarithmic sensors, ‘‘clipped’’ sensors, multimode sensors, frequ...