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CN101308198A 磁传感器及补偿磁传感器的温度相关特性的方法 无效 - 撤回

磁传感器及补偿磁传感器的温度相关特性的方法
摘要：
磁传感器(10)包括GMR元件(11－18)，以及用作发热元件的加热线圈(21－24)。元件(11－14)和(15－18)通过桥连接构成X轴传感器和Y轴传感器。加热线圈(21)设置于元件(11，12)附近，并且加热线圈(22)设置于元件(13，14)附近，并且加热线圈(23)设置于元件(15，16)附近，并且加热线圈(24)设置于元件(17，18)附近。加热线圈(21－24)通电时主要加热其邻近元件。因此，可以在地磁可确保不变的很短时间内对这些元件进行加热和冷却。基于在加热之前和之后的这些元件的温度以及各自磁传感器的输出，得到温度相关特性补偿数据(传感器输出值改变量对元件温度改变量的比值)并根据该数据对这些元件的温度特性进行补偿。
摘要（英）：

Disclosed is a magnetic sensor (10), which comprises GMR elements (11-18) and heating coils (21-24) being used as heating elements. The elements (11-14) and (15-18) form an X-axis sensor and a Y-axis sensor through bridging connection. The heating coil (21) is arranged near the elements (11, 12), the heating coil (22) is disposed near the elements (13, 14), the heating coil (23) is arranged near the elements (15, 16), and the heating coil (24) is disposed near the elements (17, 18). The heating coils (21-24) mainly heat the adjacent elements when being charged with electricity. Therefore, the elements can be heated and cooled in a rather short time under the condition of ensuring the unchanged earth magnetism. The offset data to temperature relevant characteristics (ratio of sensor output value variation to element temperature variation) can be obtained and the temperature characteristics of the elements can be compensated according to the data based on the temperature of the elements before and after heating and the output of the respective magnetic sensor.

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