ASTM E 950 Standard Test Method for Measuring the Longitudinal Profile of Traveled Surfaces with an Accelerometer Established Inertial Profiling Reference
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ASTM E 950 Document Information:
Title
Standard Test Method for Measuring the Longitudinal Profile of Traveled Surfaces with an Accelerometer Established Inertial Profiling Reference
ASTM International
Publication Date:
Dec 10, 1998
Scope:
This test method covers the measurement and recording of the profile
of vehicular-traveled surfaces
with an accelerometer established inertial reference on a
profile-measuring vehicle.
The test method uses measurement of the distance between an inertial
plane of reference and the
traveled surface along with the acceleration of the inertial platform
to detect changes in
elevation of the surface along the length being traversed by the
instrumented vehicle. In order to
meet a particular class, the transducers must meet accuracy
requirements and the calculated profile
must meet the specifications of that class.
The values measured represent a filtered profile measured from a
moving plane of reference using
the equipment and procedures stated herein. The profile measurements
obtained should agree with
actual elevation measurements that are subjected to the same
filtering. Selection of proper
filtering allows the user to obtain suitable wavelength information
for the intended data
processing.
Either metric or inch-pound units may be used, but must be used
consistently and not mixed.
This standard does not purport to address all of the safety concerns,
if any, associated with its
use. It is the responsibility of the user of this standard to
establish appropriate safety and
health practices and determine the applicability of regulatory
limitations prior to use. Specific
precautionary information is given in Section 7.
Keywords:
- longitudinal profile
- profiling device
- profilometer
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