The Ancient Chinese invented paper and money. Money was invented by the first king of China and paper was invented by a man in China by bamboo.
Example C Program to Catch a Signal. Most of the Linux users use the key combination Ctr+C to terminate processes in Linux. Have you ever thought of what goes behind this. Well, whenever ctrl+c is pressed, a signal SIGINT is sent to the process. The default action of this signal is to terminate the process. But this signal can also be handled.
The electronics in the sensor convert the resulting sinoidal signal into a digital signal (Fig. 4) . The signal is transmitted to the control unit in the form of a current signal using pulse width modulation. The sensor is connected to the control unit via a two-wire electric cable. The sensor signal is transmitted via the power supply wire. The other wire is used as an earth for the sensor.