Photoelectric
sensors are devices which are being utilized for detecting the
shape, size, color, distance, presence or absence and any other attributes of
the target entity. These devices utilize light for performing their designated
task. A typical photoelectric sensor device generally consists of a light
transmitter and a receiver. Infra-red light sources are used in general in
these devices. The light is emitted by the transmitter towards the target and
the reflected light beam is received by the photoelectric receiver, thus
activating the sensor output. Photoelectric Sensors are deemed to be the best
substitutes for inductive proximity sensors.
This is because
photoelectric sensors can detect non-metal objects also, apart from their
ability to function over long sensing distances. Only the optical components
are present in photoelectric sensors used for remote sensing while the
electronic components are generally contained in a control panel elsewhere.
This is advantageous since the sensor can be developed with a minimalistic
design while the controls can be designed to make it more accessible to the
user. On the other hand, self contained photoelectric sensors are designed to
contain both the optics and the electronic components together. These sensors
are designed to perform the modulation, amplification, demodulation and other
functions simultaneously. Advancement of technologies has led to decrease in
size of these sensors while adding increasing embedded intelligence.
The increasing
demand for photoelectric sensors is mainly driven by their use in the
automotive industry, food & beverages and manufacturing industry. The
increasing demand for information-based manufacturing and sensor-based data
from production line machines are driving the demand for photoelectric sensors.
Additionally data from certain industrial applications can be obtained
systematically and cost effective manner only by deploying photoelectric
sensors.
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Effectiveness of
photoelectric sensors, in controlling the movement of products during the
manufacturing process, has made them indispensable in manufacturing plants
across all the sectors. The high economic growth coupled with increased
automation of plants in emerging markets has significantly boosted the
photoelectric sensors market. The market has also been boosted by increasing
automation investments in US and Mexico which is again due to positive
government initiatives. One of the biggest driver of this market is the advent
of Industrial Internet of Things (IIoT). This is because IIoT performs analysis
and decision support tasks for an organization by depending on sensor based
measurements. Furthermore, the capability to function over long distances, decreasing
size and increasing functionality among others has also positively impacted the
market for photoelectric sensors. Lack of sensing capability of photoelectric
sensors and lack of scope of product differentiation are major restraints for
the photoelectric sensors market.
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