Sensor device with a based on the magneto-elastic effect sensor element and the ball guide

摘要

The invention relates to a sensor device (11) according to the invention as a ball, with a sensor element (12). This sensor device is based on the magneto-elastic effect. In addition, the invention relates to a ball guide, in which such a sensor device is installed. According to the invention, it is provided that the ball (12) by means of a bearing shell (13) and / or by ends (16) of a core component (15) is held. This core component is provided with an exciter coil (17) and a receiver coil (18) is provided, so that a over the ball (12) extending magnetic circuit (15) can be produced and variations of the magnetic flux can be measured. The thus formed ball sensor is inexpensive to manufacture and can present a variety of applications, such as, for example, measurements, are supplied in a ball guide.