5(i)
Explain the difference between contact-type sensors and non-contact type sensors. Give an example for each.
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| Contact-type Sensors | Non-contact type Sensors |
|---|---|
| These sensors measure the target parameter by making physical contact with the object or medium. | These sensors measure the target parameter without making physical contact with the object or medium. |
| Example: Touch sensor (or thermocouple) | Example: Ultrasonic distance sensor (or infrared temperature sensor) |