(IS) SX36RV series0 pages
Aerospace
Energy
Measurement
Railway
Sensorex
RVDT sensor
SX36RV SI
Utilization range
Electrical :
Power supply: 2.2Vrms ±20%
/ 3500Hz ±50Hz
Mechanical :
The mechanical loads applied
to the axis must not exceed
the following values:
axial direction : 30N
radial direction : 30N
Operating and storage
temperatures:
-40°/+100°C
Meggitt (Sensorex) (IS) SX36RV provides a sinusoidal signal, with a linear voltage over the
measurement range. The primary is excited by an AC voltage, and is picked up by the
secondary winding on the transformer principle; the position of the rotating core determines the
transformer ratio of each secondary winding.
As the secondaries are wound in opposition, the difference between the secondary outputs is
proportional to the core angle, relative to the housing. The zero position is where each
secondary voltage is equal and opposite. This is determinate in factory, and the position
marked on both spindle and housing.
Applications
• Valve position measurement
• Steam turbine servo-valve
control
A rotary displacement sensor is free to make a full rotation, however, in practice, it is only
usually used up to ±45°, where the linearity is within 0.5% of full scale. This linearity
improves as the range decreases, typically 0.1% for a range of ±5°.
This series works with an AC/AC mode, and the signal can be treated with the Meggitt
(Sensorex) 690 210 266 signal conditioner.
The sensor is made from a light anodized alloy. Output is given through a 20 meter ETFE
isolated cable with gauge 26 copper wires.
They can be used :
- In surface industries
- In permanent presence of gaseous explosive atmosphere (zone 1) (for a zone 0
use ( * ), please consult us)
- With the gas listed in subdivisions MB, IIC
(*) the RVDT external housing includes aluminum; it shall be protected against any impact
or friction.
Meggitt Sensing Systems
MEGGiTT
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