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A joystick is often used in conjunction with automated or semi-automated bulk material sampling systems. It is an input device that allows the user to precisely control the sampling device.

The functions and applications of a joystick in bulk material sampling may vary, but are generally related to controlling the positioning and movement of the sampling system. Here are some specific areas of application:

  1. Positioning: A joystick allows the user to position the sampler at the exact location where a sample is to be taken. This is particularly useful in large storage areas or in the case of heterogeneous bulk materials, where the sampling point must be carefully selected.
  2. Motion: In some cases, the sampling system can be moved along a web or in multiple dimensions. A joystick can be used to control these movements to ensure that the sample is taken from the right location and in the right way.
  3. Speed: Some joysticks allow the user to control the speed of movement of the sampling system. This can be important to ensure that the system is not moved too quickly, which could lead to inaccurate samples.
  4. Manual override: In automated systems, a joystick can serve as a manual override. That is, if the automated system is not working properly or if special sampling is required, the user can use the joystick to take control of the system.

In summary, a joystick enables precise and flexible control of  the sampling system, which  can result in accurate and representative samples of bulk solids.