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.
Turn off the power to the light. Since most outdoor motion sensor lighting is installed in place of a current porch light, you will need to begin the project by removing the old light. Before you even touch the light, you want to go to your homeâs electrical box and cut off the power to the existing light.. Adjust the angle of the sensor. The sensor for most models of motion sensor lights is on a pivot that allows you to angle the sensor toward a specific location such as your driveway or a gate. The sensor will have a rather wide field of view, so you can angle it toward multiple spaces at once in many cases.