Causes and Symptoms of Upper Abdomen Pain. 1  Abdominal Aortic Aneurysm - This condition materializes due to a weak area in the aorta wall. Over time, the wall may rupture due to its weakened condition. As the aorta is the largest artery in the body, this can be a serious condition.
Principles of Motion Sensing. Sensors able to detect three-dimensional motion have been commercially available for several decades and have been used in automobiles, aircraft and ships. However, initial size, power consumption and price had prevented their mass adoption in consumer electronics. While there are other kinds of motion detector technologies available commercially, there are four principle types of motion sensors which are important for motion processing in the consumer electronics market.
PRINCIPLE OF OPERATION The detection of gestures using the Gesture Control Sensor Board is accomplished by comparing the signal of infrared light coming from each of the emitters. The emitted infrared light is reflected from an object, for example a hand, and then detected by the VCNL4020 proximity sensor.