How to eliminate systematic errors? to measure the investigated parameter with another similar device it is necessary to measure the parameter several times with the sam e device before the experiment ,it is necessary to check the used device in a specialized laboratory involve a colleague to take mea sure ments

To eliminate systematic errors, it is necessary to check the used device in a specialized laboratory before the experiment. This ensures that the device is functioning correctly and providing accurate measurements. Additionally, involving a colleague to take measurements can help identify any potential systematic errors and ensure that the measurements are consistent and reliable.