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| BRIEF HISTORY ----
hallpotŪ angle sensors for measuring rotational angle were developed starting in 1979 by
the engineer / owner of Elweco, Inc. This technology is based on the principle
discovered by Hall more than one hundred years ago. Originally, they were designed to
improve the reliability and safety of joysticks used on electric wheelchairs. From this
early application that required exceptional reliability and safety considerations, they
evolved as angle position sensors for industrial and military equipment as a result of
their reliability and repeatability. |
| Dimen-hallpot.pdf |
Princ-hallpot.pdf |
Specs-hallpot.pdf |
SevEnv-hallpot.pdf |
Technical Notes |
360 degree linear hallpotŪ angle sensor |
TECHNICAL
PAPERS by TPRD |
A 3 page pdf file that contains
drawings with DIMENSIONS for
standard configurations |
A 2 page pdf file that contains PRINCIPLES of OPERATION for hallpotŪ angle
sensors |
A 2 page pdf file that contains SPECIFICATIONS of power supply and signal response |
A 1 page pdf file that describes hallpotŪ angle sensors for SEVERE ENVIRONMENTS |
UNDER
CONSTRUCTION
NO LINK |
Available
now in small quantities. Contact us via e-mail. spec-2pi-2.pdf |
Click here TPRD
and select TECHNIQUES
pertaining to hallpotŪ papers |
| APPLICATIONS
--- hallpotŪ angle sensors are designed and built to be used in
normal or severe environments where failure of the sensor must not occur. They are
intended to replace resistive potentiometers, RVDTs, resolvers, and other types of
rotation sensors. They may be filled with oil and used in high pressure or underwater
environments. Typical systems include control of throttles, airfoils, hydrofoils, cameras,
dancer loops, antennas, automobile suspensions, steering, weapons, valves, Automobile Test
Dummies, or in any system that requires accurate and reliable measurement of angular
rotation |
PERFORMANCE
FEATURES --- All versions of hallpotŪ angle sensors
generate their signals by moving a magnet near a hall-effect sensor. Rotation of a
magnetic fiels generates an electrical output signal that is an accurately controlled
function of input angular position. There is no contact between the magnet and sensor such
that there are no unwanted wear functions to affect the signal. Expected operational life
is exceptionally long and depends only on the grade of bearings within the devices. |
| MECHANICAL
CONFIGURATIONS --- hallpotŪ angle sensors are
nearly identical to the mechanical configurations of existing devices such as servo-mount
and resistive potentiometers. This enables them to replace the existing devices without
redesign of the user's mounting configurations. Additionally, Elweco, Inc makes special
configurations to fit non-standard or unusual geometry of the user. |
hallpotŪ potentiometer, hallpotŪ angle sensor, sin-cos hallpotŪ
resolver, are the registered trademarks of Elweco, Inc |
Third Party Research and Development
manufactures test equipment that will measure performance of hallpot?angle sensors and
other rotary sensors. |
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