| 摘要 |
PROBLEM TO BE SOLVED: To provide a movement measuring device in which the movement of a body moving part of a subject can be measured accurately.SOLUTION: A sensor head 22 of a magnetic sensor 20 is disposed in a sensor attachment part being a body surface of a body moving part of a subject, and a time change of a magnetic signal generated when the body moving part moves to a surrounding magnetic field is detected. Then, the movement of the body moving part is detected based on the time change of the magnetic signal detected by the magnetic sensor 20 by a signal processing unit 84, and thereby the movement of the subject using the magnetic sensor 20 can be detected and measured accurately. Here, the surrounding magnetic field is an environmental magnetic field, or a local gradient magnetic field formed by a magnetic field generation device disposed in the vicinity of the body moving part, and therefore the sensor head 22 disposed in the sensor attachment part of the subject can preferably detect the change of the magnetic field with the movement of the subject.SELECTED DRAWING: Figure 2 |
