MHR Series Miniature General Purpose AC LVDT
MHR Series Rev. 5
www.meas-spec.com
2014-January
1/5
?   Small size and low mass core
?   High output signal
?   Stroke ranges from ?/SPAN> 0.005 to ?/SPAN>2 inches
?   AC operation from 2kHz to 20kHz
?   Operating temperature up to 220?/SPAN>C (optional)
?   Mild radiation resistance versions (optional)
?   Stainless steel housing
?   Imperial or metric threaded core
DESCRIPTION
The legendary MHR Series LVDTs provide precision measurements in space restrictive applications. With a
diameter of just 3/8 inch [9.5mm], and an extremely lightweight core, the MHR Series is ideal for applications
where excessive core weight could influence the motion of the measurand; with less inertia, accurate
measurements at higher displacement speeds are easier to achieve. The lightweight core also reduces
mechanical stresses and helps preserve the structural integrity of the core actuation assembly.
The high output sensitivity resulting from the close electrical coupling between the coil and core provides ample
signal for interfacing with practically all signal conditioners and conditioning circuits. The magnetic stainless
steel housing provides electromagnetic and electrostatic shielding.
Available in a variety of stroke ranges from ?.005 to ? inches, the MHR Series can be configured for optional
mild radiation resistance (10
12
NVT total integrated flux; 10
7
rads Gamma). The optional high temperature
operation (+220
o
C) is available for stroke ranges of ?.10 inch and above (consult factory). High pressure
(vented case) versions are also available (consult factory). The MHR is compatible with the full line of
Measurement Specialties LVDT signal conditioners.
Like in most of our LVDTs, the MHR windings are vacuum impregnated with a specially formulated, high
temperature, flexible resin, and the coil assembly is potted inside its housing with a two-component epoxy. This
provides excellent protection against hostile environments such as high humidity, vibration and shock.
Measurement Specialties, Inc. (NASDAQ MEAS) offers many other types of sensors and signal conditioners.
Data sheets can be downloaded from our web site at: http://www.meas-spec.com/datasheets.aspx
MEAS acquired Schaevitz Sensors and the Schaevitz
TM
trademark in 2000.
FEATURES
APPLICATIONS
?  Com act size
?   X Y Z sta e osition feedback
?   Li htwei ht / low mass core
?   Wire-die bondin machines
?   ?/SPAN>0.25% linearit 100% stroke
?   C linder osition feedback
?   Shock and vibration tolerant
?   Voice coil testin
?   Mild radiation resistance o tional
?   Materials testin machines
?   Calibration certificate su   lied with each unit
?   S ace restricted installations