ESMLS01 Alloy steel material spoke type load cell with 5-15vdc
Working Principle
The ESMLS01 load sensor operates based on the principle that the resistance of a strain gauge changes when it deforms. It mainly consists of four parts: the elastic element, the strain gauge, the measurement circuit, and the transmission cable. When the elastic body undergoes elastic deformation under external force, the strain gauge attached to its surface also deforms accordingly, causing its resistance to change. This resistance change is then converted into an electrical signal through a bridge circuit.
Spoke-type sensors primarily use shear stress for measurement:
1. Force deformation: When a vertical load acts on the central hub, the force is transmitted through the spokes to the fixed outer ring.
2. Shear effect: The spokes undergo slight shear deformation (rather than simple tension or compression).
3. Signal conversion: Strain gauges attached to the spokes detect this shear deformation, causing a change in resistance.
4. Output: The bridge circuit converts the resistance change into a millivolt (mV) level voltage signal, which is proportional to the load..
Product Features
- Low height
- High accuracy
- Good linearity
- Strong resistance to eccentric load and lateral force
- Can measure both pressure and tension
- Easy to install, good interchangeability
application scenarios
1. Truck Scales (Weighbridges):
Used to weigh trucks and containers. Typically, one weighbridge uses 4, 6, or 8 spoke-type sensors to support the weighing platform.
Advantages: Can withstand shocks and uneven loading caused by vehicle movement.
2. Rail Scales:
Used to weigh train carriages.
Advantages: High rigidity and high natural frequency to resist severe vibrations when trains pass.
3. Hopper Scales and Tank Weighing:
Level/weight control for chemical and food industry reactors and storage tanks.
Advantages: Can be installed in tension, good sealing, corrosion-resistant.
4. Testing and Mechanical Experiments:
Material testing machines, pressure test benches.
Advantages: High precision and high-frequency response.
5. Port Machinery and Cranes:
Quay container cranes, overload limiters.
Advantages: Compact structure, can withstand huge impact loads.
Product detail
Technical Specifications
|
Name |
ESMLS01 Spoke load cell |
|
Capacity |
1~100t |
|
Comprehensive precision |
0.05% F·S |
|
Sensitivity |
±0.05%F·S/30min |
|
Zero output |
±1 %F·S |
|
zero temperature |
±0.05 %F·S/10℃ |
|
Output temperature |
±0.05 %F·S/10℃ |
|
Working temperature |
-20℃~+65℃ |
|
Input impedance |
380±10Ω or 750±15Ω |
|
Output impedance |
350±3Ω or 700±5 Ω |
|
Insulation resistance |
> 5000 MΩ |
|
Safety overload |
150% F·S |
|
Bridge voltage |
Advise 10VDC |
|
Material |
Alloy steel |
|
Connection type |
Input(+):red input(-):black |
|
Output(+):green output(-):white |
