Fiber Optic Sensors and Transmission Systems
About fiber optic sensors and transmission
systems
Fiber optics is the technology of using
light to transmit information. Light has a number of advantages over
electricity as a medium for transmitting information: it is immune to
corruption by neighboring electromagnetic fields, the attenuation over
a given transmitted distance is much less and it is also intrinsically
safe.
Fiber optic technology is used in two major ways. First, the fiber
optic cable itself can be used directly as a sensor in which the
variable being measured causes some measurable change in the
characteristics of the light transmitted by the cable. Secondly, fiber
optic cables can be used as a transmission medium for data.
This latter use of fiber optic cables for transmitting information can
be further divided into three separate areas of application. First,
relatively short fiber optic cables are used as part of various
instruments to transmit light from conventional sensors to a more
convenient location for processing, often in situations where space is
very short at the point of measurement. Secondly, longer fiber optic
cables are used to connect remote instruments to controllers in
instrumentation networks. Thirdly, longer links are still used for
data transmission systems in telephone and computer networks. These
three application classes have different requirements and tend to use
different types of fiber optic cable.
-
Principles of fiber optics
-
Fiber Optic
Cable
-
Fiber
Optic Transmitter
-
Fiber
Optic Receiver
-
Fiber Optic Sensors
-
Fiber Optic Intrinsic Sensors
-
Fiber Optic Extrinsic Sensors
-
Fiber Optic Instrumentation Networks
-
Data Networks Using Fiber Optics

Back to Principles of Measurement
|