What are the types of sensors commonly used for yield calculation?

The selection of Impact Sensors, Optical Sensors, and Shaft Speed Sensors as the types commonly used for yield calculation is accurate because these sensors directly contribute to measuring crop yield effectively during harvesting.

Impact Sensors help in detecting the biomass that is being harvested as they measure the impact of the crop as it enters the collection system, translating that into quantifiable yield data.

Optical Sensors are utilized to assess the characteristics of the harvested material, such as the color and reflectivity, which can correlate with the quality and yield of the crop. These sensors provide real-time feedback that can be analyzed to improve yield predictions.

Shaft Speed Sensors measure the rotational speed of the harvesting mechanisms. By understanding the speed at which the machinery operates, combined with the other sensor readings, one can calculate the overall yield more accurately.

The other options contain sensors that are not primarily associated with measuring crop yield during harvesting, which is why they don’t fit as well into this context.