What is the use of power sensors in Microwave measurement. State the different types of power sensors and Explain any one in detail.
Answers
A microwave power meter is an instrument which measures the electrical power at microwave frequencies typically in the range 100 MHz to 40 GHz. ... Several modern power sensor heads contain electronics to create a digital output and can be plugged via USB into a PC which acts as the power meter.
light sensor:-
Analog sensors that are used for detecting the amount of light striking the sensors are called as light sensors. These analog light sensors are again classified into various types such as photo-resistor, Cadmium Sulfide (CdS), and, photocell. Light dependent resistor (LDR) can be used as analog light sensor which can be used to switch on and off loads automatically based on the day light incident on the LDR. The resistance of the LDR increases with decrease in light and decreases with increase in light.