Bøger af Owen Moran

Optical sensors are a broad class of devices that are designed to detect and convert incident light rays into electrical signals. The most common types of optical sensors include transmission-type photo-interrupters, reflective photosensors, photoconductive devices, photodiodes, and phototransistors. Transmission-type photo-interrupters detect the presence of objects by intercepting light. These are used in position sensing and measuring the speed of rotation. Reflective photosensors detect the motion of objects by measuring the reflection of light across them. Optical sensors are ubiquitous components in electronic devices and equipment having several applications in industrial, consumer, healthcare and automotive fields. Biomedical devices for breath analysis and heart rate monitoring are some biomedical applications of optical sensors. They are also helpful in detecting liquid levels in process engineering facilities, such as petroleum levels in tank farms and hydrocarbon refineries. This book outlines the processes and applications of optical sensors in detail. It is a vital tool for all researching and studying this subject.

Optical sensors are devices that are used to convert light rays into electronic signals. It measures the physical quantity of light and translates it into a form that is read by the instrument. It primarily measures the changes from one or more beam lights that are based around alternations to the intensity of the light. Optical sensors are used for contact-less detection and counting or positioning of parts. There are various types of optical sensors, the most common of them include photoconductive devices, photovoltaic cell and the photodiodes. Photoconductive optical devices are used to measure the resistance by converting a change of incident light into a change of resistance. Photovoltaic cells are used to convert an amount of incident light into an output voltage. The photodiodes convert an amount of incident light into an output current. This book discusses the fundamentals as well as modern approaches of optical sensors. It strives to provide a fair idea about this discipline and to help develop a better understanding of the latest advances within this field. Those in search of information to further their knowledge will be greatly assisted by this book.