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Which of the following quantities cannot be measured by a load cell?

  • A load cell is typically used to measure force or weight, so it cannot directly measure pressure, temperature, or level.
  • However, load cells can indirectly measure these quantities if they are used in combination with appropriate sensors or devices.
  • For example, load cells can be used in a weighing system to measure the weight of a container that is holding a fluid, and from the weight measurement, the level of the fluid in the container can be inferred.
  • Similarly, load cells can be used in a force measurement system to indirectly measure the pressure applied by a fluid on a surface, or the force exerted by a gas on a piston.
  • But to measure these quantities directly, other types of sensors are typically used.
  • For example, pressure sensors are used to measure pressure, thermocouples or resistance temperature detectors (RTDs) are used to measure temperature, and level sensors are used to measure level.