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Motor Measurement (Motor Analysis-Equipped Model)
Torque meter correction function
Display screen [INPUT] > [MOTOR]
When the torque meter to be used provides calibration
values, you can correct errors of the torque meter by
entering the target values and calibration points.
There are two correction methods available: the
nonlinearity correction, which uses the Torque
calibration point (N
m)-to-Torque calibration value
(N
m) table, and the friction correction, which uses the
RPM calibration points (taking account of direction,
r/min)-to-Torque calibration value (N
m) table. You can
use either one or both of them to perform correction.
A correction table can contain value sets of up to 11
points.
The number of the correction value sets (measured
values and target values) can be set as desired.
Entering all of 11 sets is not required.
Calibration values (target values) should be expressed
in the unit same as the on-screen measured values.
Measured values falling outside the correction table
will not be corrected.
IMPORTANT
Motor input waveforms displayed on the
waveform screen are not subject to the torque
meter correction.
Conceptual diagram
Nonlinearity correction
Torque calibration point-to-Torque calibration value
(N
m) (N
m)
Friction correction (no-load output)
RPM calibration points-to-Torque calibration value
(taking account of direction,
r/min) (N
m)
Torque to be displayed
Correction range
Measured torque
Actually measured torque value
Calibration point
Linear correction
Corrected torque value
Measurement range
Torque to be displayed
Measured RPM
Correction range
Measurement range
Actually measured torque value
Calibration point
Linear correction
Corrected torque value
Displaying Power Numerically
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