Compact low-power high-sensitivity angle sensor

Autor:	N. J. McDonald, R. G. Weston, N. A. Lockerbie
Rok vydání:	2004
Předmět:	Physics Angle of rotation Optics business.industry Orientation (geometry) Measuring instrument Angular resolution Sensitivity (control systems) Rotation business Instrumentation Image resolution Power (physics)
Zdroj:	Review of Scientific Instruments. 75:988-995
ISSN:	1089-7623 0034-6748
Popis:	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 2θ over a full 360°, where θ 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 2θ 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°.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::7796be2980d19b0c80d2e6a4c468332b https://doi.org/10.1063/1.1669120 Zobrazit plný text záznamu