Sequence the following test steps
Test design
Loading
Sensing
Recording
The responses of structural specimens under loading include (not limited)
Force
Displacement
Acceleration
Strain
Temperature
Cracking
Generally, Mechanical repsonses obtained in experiments follow the order
Deformation
Strain
Stress
Force
Match the responses with devices
Displacement
LVDT
Force
LOAD CELL
Strain
STRAIN GAUGE
Crack pattern
Magnifying glass
Which one has the highest accuracy?
Which one has the longest full travel ?
Which one has the shortest full travel ?
Which one has the shortest full travel ?
Electrical (LVDT)
Electrical (strain gauge)
Optical
Mechanical
Choose the right type of Wheatstone bridge for the right image.
1/4 Half Bridge
1/2 Quarter Bridge
3/4 Quarter Bridge
Full Bridge
What are the advantages of 1/2 or full Bridge over 1/4 ?
Self compensation for temperature change
More convenient
More stable
Amplifying signal
Foil Strain Gauge is
a long and slim plastic wire
a electrical resistor
Non-contact instrumentation
attached to stable electrical power source
Principle for force Measurement
Strain-Gage Load Cells
Proving ring
Oil pressure GAGE
Pneumatic load cell