Instrumentation and Control Systems
Applications of Measuring Systems
Here the measuring device is being used to keep track of
some quantity. Certain applications of measuring
instruments may be characterized as having essentially a
monitoring function, e.g., thermometers, barometers, and
water, gas, and electric meters, automotive speedometer
and fuel gage, and compass.
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Introduction
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Since feed back systems are used in literally millions
of applications for controlling temperature, pressure,
shaft speed, fluid flow, robot arm position, aircraft
speed and altitude. etc., these control applications are
one of the most important uses of measurement
systems.
Measuring system for Controlling temperature
Thermocouple sensors are
commonly used and available in
a variety of types and
configurations to handle almost
any application. Proven through
decades of industrial service,
thermocouple sensors are
economical and physically
rugged devices that provide
accurate measurements for
wide temperature sensing ranges.
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Measuring system for Controlling Pressure
Pressure measurement is the
analysis of an applied force by a
fluid (liquid or gas) on a surface.
Pressure is typically measured in
units of force per unit of surface
area. Many techniques have been
developed for the measurement
of pressure and vacuum.
Instruments used to measure and
display pressure in an integral
unit are called pressure meters or
pressure gauges or vacuum
gauges.
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Measuring system for Shaft Speed
Tachometers. A tachometer is an
instrument designed to measure
the rotation speed of a shaft or
disk. Tachometers generally
measure rotations per minute
(RPM) though some models also
serve as rate meters and/or
totalizers. Measuring the
rotational speed of a spinning
object is important for a number
of reasons.
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Measuring system for Fluid Flow
A common device for flow
measurement is the convergent-
divergent nozzle or Venturi
meter. This device involves the
contraction of the fluid and
subsequent expansion.
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Measuring system for Robotic Arm
A method to measure the position
of the end of a robot arm using an
inertial measurement system was
designed and tested. Traditionally
large robots determine their
positions in the work space by
means of sensors affixed to the
joints of the arm segments.
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Measuring system for Aircraft Speed
Airspeed is a measurement of the
plane's speed relative to the air
around it. The pitot (pronounced
pee-toe) static tube system is an
ingenious device used by
airplanes and boats for measuring
forward speed. The device is
really a differential pressure
gauge
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Applications of Measuring Systems

  • 1.
    Instrumentation and ControlSystems Applications of Measuring Systems
  • 2.
    Here the measuringdevice is being used to keep track of some quantity. Certain applications of measuring instruments may be characterized as having essentially a monitoring function, e.g., thermometers, barometers, and water, gas, and electric meters, automotive speedometer and fuel gage, and compass. 2 Introduction
  • 3.
    3 Since feed backsystems are used in literally millions of applications for controlling temperature, pressure, shaft speed, fluid flow, robot arm position, aircraft speed and altitude. etc., these control applications are one of the most important uses of measurement systems.
  • 4.
    Measuring system forControlling temperature Thermocouple sensors are commonly used and available in a variety of types and configurations to handle almost any application. Proven through decades of industrial service, thermocouple sensors are economical and physically rugged devices that provide accurate measurements for wide temperature sensing ranges. 4
  • 5.
    Measuring system forControlling Pressure Pressure measurement is the analysis of an applied force by a fluid (liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area. Many techniques have been developed for the measurement of pressure and vacuum. Instruments used to measure and display pressure in an integral unit are called pressure meters or pressure gauges or vacuum gauges. 5
  • 6.
    Measuring system forShaft Speed Tachometers. A tachometer is an instrument designed to measure the rotation speed of a shaft or disk. Tachometers generally measure rotations per minute (RPM) though some models also serve as rate meters and/or totalizers. Measuring the rotational speed of a spinning object is important for a number of reasons. 6
  • 7.
    Measuring system forFluid Flow A common device for flow measurement is the convergent- divergent nozzle or Venturi meter. This device involves the contraction of the fluid and subsequent expansion. 7
  • 8.
    Measuring system forRobotic Arm A method to measure the position of the end of a robot arm using an inertial measurement system was designed and tested. Traditionally large robots determine their positions in the work space by means of sensors affixed to the joints of the arm segments. 8
  • 9.
    Measuring system forAircraft Speed Airspeed is a measurement of the plane's speed relative to the air around it. The pitot (pronounced pee-toe) static tube system is an ingenious device used by airplanes and boats for measuring forward speed. The device is really a differential pressure gauge 9
  • 10.