Photocell - an overview | ScienceDirect Topics
...Photocell A photocell is a resistor that changes resistance depending on the amount of light incident on it. A photocell operates on semiconductor photoconductivity: the energy of photons hitting the semiconductor frees electrons to flow, decreasing the resistance. An example photocell is the Advanced Photonix PDV-P5002, shown in Figure 21.2....
https://www.sciencedirect.com/topics/engineering/photocell
Accuracy improvement for linear array photocell sensor
...Linear array photocell sensor is widely used in pose measurement of construction machinery. Usually, we use a laser to provide a measurement reference?...
https://www.sciencedirect.com/science/article/abs/pii/S0263224121004255
Sensor Based Agility Assessment in Sport - ScienceDirect
...Agility is the ability of a person to change direction quickly. Measuring the basic and sport-specific physical abilities of athletes is important in ?...
https://www.sciencedirect.com/science/article/pii/S1877050921008802
Photoresistors - an overview | ScienceDirect Topics
...Chapter Sensor Materials, Technologies and Applications 2014, Comprehensive Materials Processing A. Venkatanarayanan, E. Spain 13.03.12.1 Photocell or Photoresistor A photocell or photoresistor is a sensor that changes its resistance when light shines on it. The resistance generated varies depending on the light striking at his surface....
https://www.sciencedirect.com/topics/engineering/photoresistors
Extrinsic Sensor - an overview | ScienceDirect Topics
...The sensor sketched in Fig. 2.25 is an etched grating biosensors, with a reflective element inscribed in the fiber core, and the fiber subsequently etched to deplete the whole cladding in the central part: this is an extrinsic sensor because the light that interacts with the surrounding medium, that is, the analyte that we detect, travels ......
https://www.sciencedirect.com/topics/engineering/extrinsic-sensor
Measurement | Vol 179, July 2021 | ScienceDirect.com by Elsevier
...Busra Aslan, Selami Balci, Ahmet Kayabasi, Berat Yildiz Article 109427 View PDF Article preview Research articleFull text access Accuracy improvement for linear array photocell sensor Hongyue Chen, Wei Yang, Ying Ma, Liyong Tian Article 109436 View PDF Article preview...
https://www.sciencedirect.com/journal/measurement/vol/179/suppl/C
Subpixel spot localization using multiscale anisotropic Gaussian tensor
...Spot localization is a fundamental but crucial issue in many optical applications. However, the existing approaches either have limited localization a?...
https://www.sciencedirect.com/science/article/pii/S0263224123003202
A review on sun position sensors used in solar applications
...This sensor consists of a photosensor, a collimator, and a control system. The photosensor is the heart of the sun position sensor and is typically used a photodiode to measure sunlight intensity. The main advantages of this sensor are: easy to build, and simple detection....
https://www.sciencedirect.com/science/article/pii/S1364032117311863
Fibre-optic photocells for daylighting model studies
...A single calibrated photocell could be used for all internal and external measurements, though this will often involve disturbing the experimental set up and imposes limitations on the shortest possible time between measurements. Multiple photocells are, therefore, more convenient and, currently, multiple photoelectric cells are used....
https://www.sciencedirect.com/science/article/pii/036013239090007E
Signal acquisition technology for photoelectric encoder based on FPGA
...The photoelectric encoder is a digital detecting element with optical, mechanical, electrical functions. It is a displacement sensor whose input to the angular displacement of the shaft is converted into a pulse or digital position through the photoelectric conversion. A typical photoelectric encoder is composed of a code disk, a testing grating, a photoelectric conversion circuit and ......
https://www.sciencedirect.com/science/article/pii/S003040261630852X