What is the noise floor for force and displacement?

The noise-floor values for displacement and force in our laboratory for the DCM head are <0.1nm and <10nN, respectively. For the XP head, these values are <1.0nm and <100nN. We do not quote values for noise floor, because they are not concrete values for the instrument. Rather, they are an accumulation of all noise sources, and thus, lab-dependent.