HBM MGCplus - Strain Gages

Measuring
Adapting to the transducer
140 A0534-30.0 HBM: public MGCplus
11. Use to select the
Adjust amplifier
button and confirm with .
12. Use the cursor keys
to select the
calibrate...
button and confirm
with
.
13. Unload the transducer.
14. In the left edit field for characteristic curve point 1 enter the value 0 and
confirm with
.
15. Use the cursor key
to select the
measure
button in line Point 1 and
confirm with
.
16. Use the cursor key
to select the left edit field in line Point 2, enter
the value 4 and confirm with
.
17. Load the transducer with the 4 kg calibration weight.
18. Use the cursor keys
to select the
measure
button symbol in line
Point 2. Now if you press
, a measurement starts and the current
measured value appears in mv/V on the left next to the
measure
button.
19. Use the cursor keys
to select the OK button and confirm with
(the amplifier converts the nominal (rated) value to 10 kg. The calibra
tion data for 4 kg remains intact).
20. Use the Switch key
to go to measuring mode and confirm the con
firmation prompt with
.
7.3.2 Strain gages
The quantity used to assess material stresses is the mechanical stress to
which the material is exposed. One practicable method for experimentally
determining material stresses is based on strain gages (SG). A detailed de
scription of SG technology can be found in the book "An Introduction to the
Technology of Measuring with Strain Gages" (author Karl Hoffmann, pub
lished by HBM Darmstadt).