Picture of smart phone in human hand

World leading smartphone and mobile technology research at Strathclyde...

The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by Strathclyde researchers from the Department of Computer & Information Sciences involved in researching exciting new applications for mobile and smartphone technology. But the transformative application of mobile technologies is also the focus of research within disciplines as diverse as Electronic & Electrical Engineering, Marketing, Human Resource Management and Biomedical Enginering, among others.

Explore Strathclyde's Open Access research on smartphone technology now...

Compact low-power high-sensitivity angle sensor

Lockerbie, N.A. and McDonald, N.J. and Weston, R.G. (2004) Compact low-power high-sensitivity angle sensor. Review of Scientific Instruments, 75 (4). pp. 988-995. ISSN 0034-6748

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

We present the design of a compact battery-powered optical angle sensor, together with the first results obtained using the prototype measuring system. The output of the sensor is proportional to cos 2 over a full 360°, where is the (possibly static) angle of rotation from a designated zero orientation. Over the more limited range of approximately ±20° the measured angular sensitivity is in excess of 70 mV/°, corresponding to an angular resolution of ±0.01°. Although the cos 2 dependency was created in order to meet the requirements of a dynamical quadrupole measuring instrument, this sensor could be useful in applications which require a highly sensitive, yet compact, contactless, measurement of rotation, over (say) ±20°.