What is a Sensor?

A Sensor or a Detector is a device that is used to convert a physical parameter into a signal that can be measured or monitored. For example a GAS Sensor monitors gas concentration (PPM) and converts it into electrical signal that can be measured. The input parameter can be different like Light, Temperature, Humidity pressure etc but the output is generally a human readable or electrically monitarable. 

Definition of Sensor

According to Oxford Dictionaries definition of Sensor is "A device which detects or measures a physical property and records, indicates, or otherwise responds to it."

Meaning of Sensor as per Wikipedia "A sensor is an object whose purpose is to detect events or changes in its environment, and then provide a corresponding output"

Types of Sensor

A sensor is classified based on various aspects such as

• Application Based:  Industrial Sensor, Automotive Sensor etc
• Output Based : Resistive output, Differential Output, Differential output, voltage output etc
• Parameter Sensing Based: Light, Temperature etc

Most commonly sensors are are classified on Stimulus basis i.e. Sensing Parameter based. Here is a List of most commonly available sensors 

• Light Sensor
• Temperature Sensor
• Proximity Sensor
• Pressure Sensor
• GAS Sensor
• Current Sensor
• Bio-Medical Sensor
• Sound Sensor
• Tilt Sensor
• Hall effect Sensor
• Accelerometer Sensor
• Compass Sensor
• Flow Sensor
• Humidity Sensor
• Level Sensor
• Motion Sensor
• Speed Sensor
• RPM Sensor
• Force Sensor

And lots more. Here is a complete list of Sensors

DNA Technology is an Online Electronic Component Shop dealing in various types of Sensors. Check List of Sensors available with us. We provide deliver all over India.