Sensor

Q1. What is a sensor?

A sensor is a device that detects physical changes in the environment (such as heat, light, pressure, motion, or gas) and converts them into an electrical signal.

Q2. How does a sensor work?

A sensor detects a specific parameter and converts it into an electrical signal. This signal is then processed by a controller or system (e.g., Arduino, PLC, Computer).

Q3. What are the types of sensors?

Yes. After identifying and fixing the fault (overload/short circuit), MCCB can be reset manually by switching it back ON.

Q4. What are the types of sensors?

Temperature Sensors (Thermistor, Thermocouple)

Motion/Proximity Sensors (PIR, Ultrasonic, IR)

Pressure Sensors

Gas/Smoke Sensors

Light Sensors (LDR, Photodiode)

Humidity Sensors

Image/Camera Sensors

Position Sensors (GPS, Gyroscope, Accelerometer)

Q5. Where are sensors used?

Electronics & IoT devices (Smartphones, Smart Homes)

Industrial automation

Automobiles (ABS, Parking sensors)

Medical equipment (ECG, Glucose monitors)

Security systems (CCTV, Motion detectors)

Q6. Why are sensors important?

Sensors enable automation, safety, monitoring, and data collection, making them the backbone of modern technology.