Abstract
Robotic systems in which robots perform the tasks involving interaction with environments or
human require not only successfully controlled tasks but also safe interaction. Force control has a vital role in
these robotic systems to realize the fine human interaction. The high performance force sensation is greatly essential
for force control to achieve the successful executions and safe interactions because the performance of
the force control system is dependent on the accuracy of the force sensation. In order to achieve the high performance
force sensation, the wideband force sensing is absolutely necessary to be attained. Therefore, this paper
introduces the wideband sensor-less force control approach to realize the fine human interaction.