Korhonen T
Department of Psychology, University of Jyvaskyla, Finland.
Physiol Behav. 1991 Mar;49(3):651-2. doi: 10.1016/0031-9384(91)90295-y.
A Hall effect device was constructed for a measurement of head movements in three spatial dimensions during classical conditioning experiments in cats. A Hall sensor was used to detect movements of a magnetic fragment floating in a small (15 x 15 mm) cube. The magnetic fragment was kept in the centre of the sealed cube with a thin coil spring which was filled with thin oil for damping excessive afteroscillations. A comparison of this device to a commercial accelerometer showed that the accuracy of the Hall device is sufficient for the movement recordings and that the device is sensitive also to slowly accelerating movements. The construction is compact and can be easily mounted, for example, on the head stage of a freely moving animal.
构建了一种霍尔效应装置，用于在猫的经典条件反射实验中测量头部在三个空间维度上的运动。使用霍尔传感器来检测漂浮在一个小（15×15毫米）立方体中的磁性碎片的运动。磁性碎片通过一个细螺旋弹簧保持在密封立方体的中心，该立方体中填充有稀油以抑制过度的余振。将该装置与商用加速度计进行比较表明，霍尔装置的精度足以进行运动记录，并且该装置对缓慢加速的运动也很敏感。该结构紧凑，例如可以很容易地安装在自由活动动物的头部固定架上。
