MTS Systems Temposonics R Series User Manual

16
Temposonics
®
R-Series SSI
Operation Manual
Temposonics
®
R-Series SSI
Operation Manual
4. Product description and commissioning
4.1 Functionality and system design
Product designation
• Position sensor Temposonics
®
R-Series
Sensor model
• Temposonics
®
RP (profile sensor)
• Temposonics
®
RH (rod sensor)
• Temposonics
®
RD4 (detached sensor electronics)
• Temposonics
®
RT4 (redundant with detached sensor electronics)
• Temposonics
®
RF (flexible sensor rod)
Stroke length
• RP 25… 5080 mm (1.0…200.0 in.)
• RH 25… 7620 mm (1.0…300.0 in.)
• RD4 25… 5080 mm (1.0…200.0 in.)
• RT4 25… 2540 mm (1.0…100.0 in.)
• RF 150…20,000 mm (6.0…787.0 in.)
Output signal
• SSI
Application
Temposonics
®
position sensors are used for measurement and con-
version of the length (position) variable in the fields of automated sys-
tems and mechanical engineering.
Principle of operation and system construction
The absolute, linear position sensors provided by MTS Sensors
rely on the company’s proprietary Temposonics
®
magnetostrictive
technology, which can determine position with a high level of
precision and robustness. Each Temposonics
®
position sensor
consists of a ferromagnetic waveguide, a position magnet, a strain
pulse converter and supporting electronics. The magnet, connected
to the object in motion in the application, generates a magnetic field
at its location on the waveguide. A short current pulse is applied to
the waveguide. This creates a momentary radial magnetic field and
torsional strain on the waveguide. The momentary interaction of the
magnetic fields releases a torsional strain pulse that propagates the
length of the waveguide. When the ultrasonic wave reaches the end of
the waveguide it is converted into an electrical signal. Since the speed
of the ultrasonic wave in the waveguide is precisely known, the time
required to receive the return signal can be converted into a linear
position measurement with both high accuracy and repeatability.
Modular mechanical and electronic construction
• The sensor rod or profile protects the inner sensor element.
• The sensor electronics housing, a rugged aluminum construction,
contains the complete electronic interface with active signal
conditioning. Double shielding ensures high safety of operation and
optimum EMC (Electromagnetic Compatibility).
• The external position magnet is a permanent magnet. Mounted on
the mobile machine part, it travels along the sensor rod or profile
and triggers the measurement through the sensor rod wall.
• The sensor can be connected directly to a control system. Its
electronics generates a strictly position proportional signal output
between start and end position.
Fig. 3: Time-of-flight based magnetostrictive position sensing principle
5
Sensing element
(Waveguide)
Position magnet (Magnetic fi eld)
Torsional strain
pulse converter
4
Current pulse
generates
magnetic fi eld
Interaction with
position magnet
fi eld generates
torsional strain
pulse
Torsional strain
pulse propagates
Strain pulse
detected by
converter
Time-of-fl ight converted
into position
1
2
3

MTS Systems Temposonics R Series Specifications

General

Brand	MTS Systems
Model	Temposonics R Series
Category	Accessories
Language	English