Microminiature DVRT®0 pages
LORD PRODUCT DATASHEET
M-DVRT
®
Microminiature Displacement Sensor
Ideal for critical linear displacement measurements, the
Microminiature DVRT® delivers high performance in a tiny
package. Advanced materials and electronics have resulted in
a rugged, fast, and sensitive instrument, capable of
submersion in aqueous environments. The Microminiature
DVRT® features micron- to-sub-micron resolution, linear
analog output, flat dynamic response to kHz levels, and very
low temperature coefficients. Its free-sliding cores are
extremely lightweight and utilize flexible, elastic, bio-compatible
alloys to provide resistance to kinking and permanent
deformation.
Features & Benefits
System Overview
High Performance
Sensor Design
micron resolution with large stroke/size ratio
frictionless design for robust use over millions of cycles
suitable for use in harsh fluids and environments
Ease of Use
world’s smallest linear displacement sensor
plug and play usability
easily customized to suit specific requirements
signal conditioning options for any application
Applications
Invivo Strain, Micromotion and deformation in Bone &
Tissue
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 Microminiature 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.