Views: 222 Author: Leah Publish Time: 2025-01-15 Origin: Site
Content Menu
● Components Required for Connection
● Step-by-Step Guide to Connecting the Load Cell
>> 3. Perform Zero Calibration
>> 5. Save Calibration Settings
● Troubleshooting Common Issues
● FAQ
>> 1. What is the difference between compression and tension load cells?
>> 2. Can I use multiple load cells simultaneously?
>> 3. What types of applications use compression and tension load cells?
>> 4. How often should I calibrate my load cell?
>> 5. What software can I use for data acquisition from USB load cells?
Load cells are essential components in various applications, providing accurate measurements of force or weight. They come in two primary types: compression load cells, which measure the force applied to compress them, and tension load cells, which measure the force applied to stretch them. With advancements in technology, connecting these load cells to computers via USB has become increasingly common, allowing for seamless data acquisition and analysis. This article will guide you through the process of connecting and calibrating a compression and tension load cell via USB.
Load cells function based on the principle of strain gauges, which convert mechanical force into an electrical signal. This signal can then be measured and interpreted by a computer or microcontroller.
- Compression Load Cells: Designed to measure forces that push down on them.
- Tension Load Cells: Designed to measure forces that pull on them.
Both types can often be used interchangeably depending on the application requirements.
To connect a compression and tension load cell via USB, you will need:
- A compatible load cell (compression/tension)
- A USB load cell interface (e.g., DI-100U or similar)
- Data acquisition software (e.g., LoadVUE Pro, SensorVUE)
- A computer with available USB ports
- Calibration weights (for accurate calibration)
1. Identify Load Cell Wires: Most load cells have four wires:
- Red (Excitation +)
- Black (Excitation -)
- White (Signal +)
- Green (Signal -)
2. Connect to Signal Conditioning Circuit: Connect the load cell wires to the corresponding terminals on your USB load cell interface. Ensure that all connections are secure to prevent signal loss.
3. Connect USB Interface to Computer: Plug the USB connector from your load cell interface into an available USB port on your computer.
4. Install Necessary Drivers: Depending on your interface, you may need to install specific drivers. Follow the manufacturer's instructions for installation.
5. Launch Data Acquisition Software: Open your chosen software (e.g., LoadVUE Pro) to start receiving data from the connected load cell.
Calibration is crucial for ensuring accurate measurements from your load cell. Here's how to calibrate a compression and tension load cell using software:
- Ensure that your load cell is securely mounted in its intended application.
- Remove any loads from the cell before starting calibration.
- In your data acquisition software, navigate to the calibration section.
- Select the connected load cell from the list of devices.
- With no weight applied, set the zero point in the software. This ensures that any subsequent readings account for only applied loads.
- Use known weights for calibration:
- For two-point calibration:
- Apply a known lower weight (e.g., 0 kg).
- Record this value in the software.
- Apply a known upper weight (e.g., full scale).
- Record this value.
- For multi-point calibration:
- Apply multiple weights across the range of the load cell.
- Record each weight in sequence.
- Once all weights are recorded, save the calibration settings in the software.
- Verify that readings match expected values by applying known weights again.
For a visual guide on connecting and calibrating a USB load cell, you can refer to this [video tutorial]
If you encounter issues during connection or calibration:
- No Data Received: Check all connections and ensure that drivers are correctly installed.
- Inaccurate Readings: Recheck calibration steps; ensure that known weights are accurate and correctly entered into the software.
Connecting and calibrating a compression and tension load cell via USB is a straightforward process that enhances measurement capabilities in various applications. By following this guide, users can ensure accurate readings and effective data collection through their chosen software solutions.
Compression load cells measure forces applied downward, while tension load cells measure forces applied upward or pulling forces.
Yes, multiple USB load cells can be connected to a computer using a USB hub, allowing simultaneous data acquisition from all connected devices.
These load cells are commonly used in industrial weighing systems, material testing, structural monitoring, and research applications requiring precise force measurements.
It is recommended to calibrate your load cell at least once a year or whenever it is moved or subjected to significant changes in environmental conditions.
Popular options include LoadVUE Pro, SensorVUE, ControlVUE, MATLAB, and LabVIEW among others.
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[2] https://www.youtube.com/watch?v=MXoV1SPeNk8
[3] https://assets.omega.com/manuals/MQS5447.pdf
[4] https://www.loadstarsensors.com/load-cell-calibration-using-calibration-software.html
[5] https://www.interfaceforce.com/tension-load-cells-101/
[6] https://www.phidgets.com/docs/Calibrating_Load_Cells
[7] https://www.interfaceforce.com/load-cell-connection-to-usb-instrumentation-advances-measurement-applications/
[8] https://www.interfaceforce.com/load-cell-set-up-basics/
[9] https://learn.sparkfun.com/tutorials/openscale-applications-and-hookup-guide/all
[10] https://www.massload.com/a-comprehensive-guide-to-calibrating-load-cells-and-maintaining-crane-scale-accuracy/
[11] https://forum.arduino.cc/t/getting-output-voltage-from-load-cell-in-arduino/1098950
[12] https://www.800loadcel.com/product-videos.html
[13] https://www.800loadcel.com/assets/files/electronics/dscusb_standard_manual.pdf
[14] https://www.fibossensor.com/how-to-connect-a-load-cell-to-a-computer.html
[15] https://www.youtube.com/watch?v=I0YLRlyEfNM
[16] https://www.youtube.com/watch?v=St23XtyIIgc
[17] https://www.youtube.com/watch?v=u7DbmmpmG3g
[18] https://mhforce.com/product/dsc-usb-load-cell-indicator/
[19] https://www.phidgets.com/docs/Load_Cell_Guide
