Design and study of sample table of neutron spectrometer

A sample table was designed for neutron diffraction experiment.The mian parameters:maximum load is 1000 kg;four degrees of freedom movement; measurable space I 800 mm*800 mm*400mm;high accuracy in positioning samples is 30μm. Due to the height limits for the incident position of neutron source, the unique multi stage telescopic structure was adopted to ensure that the height of the entire table was agreed with the requirement of measuring position. The path planning and optimization methods were studied to avoid that sample collide with slit system and to achieve the goal of shortening the locating time and reducing the path error. The digital filter of sensor signal was studied to improve the performance of the control system. The gas lubrication technology of large load and high precision were studied to make the sample table move conveniently and accurately and to reduce the vibration and noise.