Since
a long time, pressure sensors have been widely used in fields like automobile,
manufacturing, aviation, bio medical measurements, air conditioning, hydraulic
measurements etc. A few prominent areas where the use of pressure sensors is
inevitable are:
1.
Touch Screen Devices: The computer devices and smart
phones that have touch screen displays come with pressure sensors. Whenever
slight pressure is applied on the touch screen through a finger or the stylus,
the sensor determines where it has been applied and accordingly generates an
electric signal that informs the processor. Usually, these sensors are located
at the corners of the screen. So when the pressure is applied, usually two or
more such sensors act to give precise location information of the location.
2.
Automotive Industry: In automotive industry, pressure
sensors form an integral part of the engine and its safety. In the engine,
these sensors monitor the oil and coolant pressure and regulate the power that
the engine should deliver to achieve suitable speeds whenever accelerator is
pressed or the brakes are applied to the car.
For
the purpose of safety, pressure sensors constitute an important part of
anti-lock braking system (ABS). This system adapts to the road terrain and
makes sure that in case of braking at high speeds, the tires don’t lock and the
vehicle doesn’t skid. Pressure sensors in the ABS detail the processor with the
conditions of the road as well as the speed with which the vehicle is moving.
Air
bag systems also use pressure sensors so that the bags get activated to ensure
the safety of the passengers whenever high amount of pressure is experienced by
the vehicle.
3. Bio
Medical Instrumentation: In instruments like digital
blood pressure monitors and ventilators, pressure sensors are needed to
optimize them according to patient’s health and his requirements.
4.
Industrial Uses: Pressure sensors are used to monitor
gases and their partial pressures in industrial units so that the large
chemical reactions take place in precisely controlled environmental conditions.
In oil industry, sensors detail with the depth that the oil rig has reached
while exploring.
5.
Aviation: In the airplanes, these sensors are
needed to maintain a balance between the atmospheric pressure and the control
systems of the airplanes. This not only protects the circuitry and various
internal components of the airplane but also gives exact data to the system
about the external environment. Also, particular levels of air pressure need to
be maintained in the cockpit and the passengers lobby to provide nominal ground
like breathing conditions.
6.
Marine Industry: For ships and submarines, pressure
sensors are needed to estimate the depth at which they are operating and for
detailing the marine conditions so that the electronic systems can remain safe.
Oxygen requirements of under water projects are also regulated by the pressure
sensors.
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