To ensure accurate measurements and prevent damage to the load cell, follow the guidelines below.

Safe Operating Limits

  • Do not overload the load cell. Its maximum operating range is ±100 N (10 kg).
  • For static loading experiments, such as Hooke's law, apply and remove loads carefully to avoid exceeding the rated capacity.

Dynamic Force Experiments

For experiments involving rapidly changing forces (e.g. impulse and collisions), test the setup carefully before collecting data.

Typical force levels are:

  • Dropping the sensor package alone onto a hard buffer from a height of 10 cm produces a maximum force of approximately 10 N.
  • A cart colliding with the sensor can generate peak forces of up to 95 N, depending on the collision conditions.

Fitting Attachments

When attaching accessories to the load cell:

  • Ensure the threaded attachment does not screw so far into the load cell that it locks or restricts its movement.
  • A thread engagement of approximately 5 mm is sufficient in most cases.
  • Use a flat-headed attachment when pushing against an object or when providing a contact surface or buffer for impulse and collision experiments.
  • Ensure the attachment projects beyond the sensor housing so that it makes proper contact with the apparatus rather than the case.
  • Check that all attachments are securely fitted before beginning the experiment.

Sampling Rate

Select a sampling interval appropriate to the experiment.

  • For collision experiments, use the shortest available sampling interval to capture the peak force accurately.
  • For simple harmonic motion (SHM) and suspended mass experiments, a sampling interval of 10 ms is generally suitable.
  • The optimum sampling rate depends on factors such as the spring stiffness and the suspended mass, so adjust the data collection rate as required.

Zeroing the Sensor

Before taking measurements, use the software Tare function to set the zero-force reference.

Data Collection

The data acquisition software allows you to configure trigger conditions and recording durations, enabling data collection to start and stop automatically at the required points in the experiment.

Safety Notes

  • Wear safety glasses when carrying out collision, impulse or suspended-mass experiments, as components may become detached or rebound unexpectedly.
  • Keep hands and fingers clear of moving carts, masses and impact surfaces during dynamic experiments.
  • Secure the sensor firmly to a stand or support before applying loads or carrying out collision experiments.
  • Inspect the load cell and attachments before use. Do not use the sensor if the load cell appears bent, damaged or if the threaded connection is worn.
  • Never use the sensor as a lifting point or support body weight.
  • Avoid shock loading beyond the intended experimental conditions, as excessive impacts can permanently damage the load cell.
  • Ensure suspended masses are securely attached and cannot fall if the attachment becomes loose.
  • Keep cables and Bluetooth receivers clear of moving apparatus to prevent entanglement or accidental pulling of the sensor.
  • Do not expose the sensor to liquids, excessive moisture or corrosive chemicals.
  • Store the sensor without any load applied and remove accessories after use to avoid unnecessary strain on the load cell