| 摘要 |
PROBLEM TO BE SOLVED: To prevent erroneous detection of a piston position even in a high magnetic field environment.SOLUTION: A piston position detection device of a fluid pressure cylinder 10 detects the position of a piston P on the basis of the magnetic force of position detection magnets attached to the piston P housed in a cylinder tube 11, and a pair of position detection magnets 21 and 31 is attached to the piston P so that the same poles face each other in a moving direction of the piston P. The pair of position detection magnets 21 and 31 is attached so that they are separated via a spacer 40 in the moving direction of the piston P. |
