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Sensor

The document discusses different types of touch sensors including capacitive and resistive touch sensors. It also discusses other sensors like microphone, magnetic, and pressure sensors and their types and applications.

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Jivanthika Varrunkumar
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40 views2 pages

Sensor

The document discusses different types of touch sensors including capacitive and resistive touch sensors. It also discusses other sensors like microphone, magnetic, and pressure sensors and their types and applications.

Uploaded by

Jivanthika Varrunkumar
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Touch sensor

What is the touch sensor?

A touch sensor is a type of device that captures and records physical touch or embrace on a device
and/or object. It enables a device or object to detect touch or near proximity, typically by a human user
or operator.

Types

Capacitive

It’s called capacitive because the technology is based on capacitive coupling that detects anything that is
conductive or has a dielectric different from air. In this case, the human body (your fingers) is being used
as an electrical charge conductor.

Resistive

The other type of touch screen/sensor is resistive. Unlike capacitive touch sensors which have a glass
layer only, resistive touch sensors have several layers, where the two main layers are the flexible plastic
and glass layer.

Applications – onscreen

Microphone sensor

t works similar to our ears. Our Ears have a diaphragm which converts the detected the vibration and
converts it in the signal. Similarly, the sound sensors convert the vibration into audio signal (voltage and
current proportional) with the help of a microphone

types , applications – on screen

magnetic sensor

Magnetic sensors are used to detect magnetic fields and they are essential tool for many engineering
applications. Based on the applications, many variations of magnetic sensors have developed which can
be classified in few groups: magnetic field sensors, magnetic position and distance sensors, magnetic
proximity switches, magnetic force and torque sensors, magnetic flowmeters and current sensors.

Types –onscreen

Pressure sensor

A pressure sensor simply monitors this pressure and can display it in one of the several units known
around the world. This is commonly the “Pascal”, “Bar”, and “PSI” (Pounds per Square Inch) in the
United States.

The pressure of the air in your tire is a great example of pressure and how it is measured.
Uses types on screen

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