Subminiature DVRT®0 pages
LORD PRODUCT DATASHEET
S- DVRT
®
Subminiature Displacement Sensor
Ideal for linear control and precision measurement
applications, the Subminiature DVRT® provides fast
response and rugged packaging. The Subminiature DVRT®
features micron resolution, linear analog output, flat dynamic
response to kHz levels, and very low temperature
coefficients. Its free sliding transducer core is lightweight,
strong, and corrosion resistant. Cores are precision ground to
insure a close sliding fit within the open bore of the stainlesssteel lined DVRT® body. This precision allows the DVRT® to
achieve extremely high repeatability. The sensing head is
capable of total submersion in aqueous environments.
Features & Benefits
System Overview
High Performance
Sensor Design
sub-micron resolution with large stroke/size ratio
frictionless design for robust use over millions of cycles
suitable for use in harsh fluids and environments
high dynamic range for difficult measurements
Ease of Use
plug and play usability
easily customized to suit specific requirements
signal conditioning options for any application
Applications
Process Control for Production-Line Monitoring
Miniature Position Control Elements
Linear & Angular Motion Control
Measuring Strain and Deflection in Materials and
Structures
Dimensional Gauging for Quality Control
Core position is detected by measuring the coils’ differential
reluctance using a sine wave excitation and synchronous
demodulator. This differential detection method provides a
very sensitive measure of core position while cancelling out
temperature effects.
The transducers’ coils and Teflon® cables are sealed in
vacuum-pumped epoxy, within the stainless-steel case. This
provides outstanding environmental resistance. The DVRT®
has been successfully employed in harsh applications,
including short term immersion in saline and pressurized oil.
Units available for long term immersion, corrosive and high
pressure environments can be custom built to meet such
requirements. LORD MicroStrain®’s desktop consoles and
in-line signal conditioners provide the Subminiature DVRT®
with plug and play housing, power, analog output, LCD display,
RS-232 output and software. A range of modular positioning
attachments and custom strokes are also available.