Glossary - Ametek Gemco Brik 955QD Series Installation, Programming And Maintenance Manual

With qudrature output, linear displacement transducer
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Glossary

Glossary
Active Stroke Area
Burst Input
Dead Zone
Floating Magnet
Incremental
Input Type
Non-volatile
Null Zone
Output Driver
Output Resolution
Quadrature
Quadrature Cycle
Output Frequency
RS-422 Differential
Slide Magnet Assembly
Unipolar
Volatile
Wire Speed
Zero Pulse
19
The area on the extrusion between the Null and Dead Zone on which the magnet
assembly moves.
An input signal to the probe will cause a "burst" of data, representing the
absolute position to be fed to the controller.
An area usually 1.5" from the end of the extrusion where sensing of the magnet
is not possible.
A non-ferrous assembly that contains the magnet that moves across the LDT's
sensing surface in a non-contact manner.
A relative position feedback device whose signal is always referenced to the zero
position. The LDT produces a digital, square wave pulse train that is fed into an
up/down counter chip or clock to derive position.
Used to determine input type for "burst" and "zero" modes. i.e.; sinking, sourcing
or TTL.
Position is held in memory and will not be lost on power down.
An area usually covering 3.00" on the extrusion beginning at the connector end.
Used to determine output type of A, B and Z.
Used to determine amount of pulses per inch.
Two output channels out of phase by 90 electrical degrees.
The frequency at which the pulse rate is transmitted out of the probe.
Differential line driver.
A non-ferrous assembly that moves across the LDT's sensing surface.
A power supply that provides a single voltage.
Position held in memory that is lost on power down.
The average time it takes a pulse to travel one inch on the wire.
By sending a signal to the probe at any time in the stroke a new zero point
can be established.
Installation, Programming and Maintenance Manual

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