A sound sensor is defined as a module that detects sound waves through its intensity and converting it to electrical signals.
An ultrasonic sensor is an electronic device that measures the distance of a target object by emitting ultrasonic sound waves, and converts the reflected sound into an electrical signal. Ultrasonic waves travel faster than the speed of audible sound (i.e. the sound that humans can hear).
â— The IR sensors detect whether the light from the transmitter is emitted by an object or a person. Whereas, the PIR sensors detect changes in the levels of energy around the area.
Intelligent sensor systems are omnipresent in our everyday lives. They provide security, save lives and improve our quality of life. As more and more areas of life are automated and networked, the importance of innovative sensor technologies will also increase in the future.
Mechanical sensors detect some form of mechanical deformation and translate the deformation into an electrical signal. The mechanical deformation can occur due to a variety of stimuli. Mechanical sensors are one of the most commonly used classes of sensors for biomechatronic applications.
A thermometer has two important elements: (1) a temperature sensor (e.g. the bulb of a mercury-in-glass thermometer or the pyrometric sensor in an infrared thermometer) in which some change occurs with a change in temperature; and (2) some means of converting this change into a numerical value (e.g. the visible scale ...
Today's mobile devices are packed with nearly 14 sensors that produce raw data on motion, location and the environment around us. This is made possible by the use of micro-electromechanical systems (MEMS). MEMS are mechanical systems built into tiny semiconductor chips.
The proximity sensor detects the presence of an object. In the mobile phone, it detects the distance between sensor and object (generally it is your ear or hand). During calls, your screen automatically goes off. This action is done via the proximity sensor.
Sensor proliferation and sensor fusion will continue to accelerate as security within the IoT improves and makes it safer to transmit important data. That will enhance remote operating capabilities. While that is happening, the application of sensors to consumer devices will drive down cost and improve performance.
Sensors, in their most general form, are systems possessing a variable number of components. Three basic components have already been identified: a sensor element, sensor packaging and connections, and sensor signal processing hardware. However, there are additional components to certain sensors.