Ahmed Blog

  What Does Intrinsic Safety (IS) Mean? Intrinsic safety is an explosion prevention technique used to ensure safe operation of electrical equipment in a hazardous area. It uses low-energy signaling technique by limiting the energy within the equipment well below the energy required to initiate an explosion. The equipment and control circuits can still operate with low currents and voltages that are adequate for its operation. How does Intrinsic Safety Equipment work? Avoiding ignition entails minimizing both the available power and the maximum temperatures. Defining the maximum level of available power is complex, but in general terms can be considered as meaning voltage less than 29V and under 300 mA. A simpler view is to say that power must be less than 1.3 W. (Note that much instrumentation requires 24V and can often be designed to draw less than 500 mA; sufficient to meet IS certification in many situations).     Six classes define temperature levels. I...

  What is image processing?                                   Generally speaking, image processing is manipulating an image in order to enhance it or extract information from it. There are two methods of image processing: ·          Analog image processing   is used for processing physical photographs, printouts, and other hard copies of images ·          Digital image processing  is used for manipulating digital images with the help of computer algorithms. In both cases, the input is an image. For analog image processing, the output is always an image. For digital image processing, however, the output may be an image or information associated with that image, such as data on features, characteristics, bounding boxes, or masks. Today, image processing is widely used in medical visualizat...