5pcs BF350 Strain gauge bending sensor module Y3 weighing and amplifying | Инструменты

brief introduction
Model: bf350-3aa / 1.5aa
Sensitivity coefficient: 2.0
Strain: 2%
Grid wire: length x width 2x3.5mm
Base size: l x w 5x4.5mm
Base material: modified phenolic base.
Material of grating wire: constantan
Resistance: 350 ohm
Fatigue life: > 10000000 times
Flux: ordinary solder rosin
The working principle of resistance strain gauge is based on the strain effect, that is, when the conductor or semiconductor material is mechanically deformed under the action of external force, its resistance value changes correspondingly, which is called "strain effect".
Stick the strain gauge on the object to be measured and make it bend with the strain of the object to be measured, so that the metal foil inside will bend with the strain. Many metals change their resistance when they are mechanically bent.
2. Product introduction
Voltage: 5V
Diode reverse protection
The board is equipped with red LED power indicator
Analog output
Bending angle 0-30 degrees
The greater the bending, the higher the output voltage
With zero potentiometer
The output starting voltage can be adjusted by potentiometer
Output analog voltage 0-3.5v
Board size: 32 x 17 mm
The pin out definition is printed on the back of the board
(the output voltage can be changed by bending the strain gauge.)
Q: how to use this and how does it work?
This is a bending sensor
The principle of the scale is to detect the conversion of the bending degree. Stick the strain gauge on the carrier, such as: iron aluminum plastic sheet, and then bend the carrier. When the strain gauge detects the bending, the output voltage will change.
The strain gauge can be pasted on the object to detect the bending, and then we can convert the voltage by bending the module.