Question

Which of following is true
a) physical quantities such as image and velocity can be measured by scalar sensors
b) scalar sensors produce output signal or voltage which is generally proportional to magnitude of quantity being measured.
c) digital sensors produce any value from 0 to10
d) displacement cannot be measure by anlog sensors.

Answer 1

Among the given options, the correct option is option B

• Scalar sensors produce an output signal or voltage that is generally proportional to the magnitude of quantity being measured.
• Devices that perform an "input" function are commonly referred to as sensors because they "sense" a physical change in certain characteristics that changes in response to some excitation, like the heat or force, and converts it to an electrical signal
• Scalar is a measure of only the magnitude of a medium It does not take the course of that medium into account at all. Time, distance, temperature etc.