| 摘要 |
PURPOSE: A straight displacement sensor using magnetic rheological fluid and a displacement detection device including the same are provided to reduce errors occurs in the straight line displacement. CONSTITUTION: A straight displacement sensor using magnetic rheological fluid comprises a case(20), an excitation coil(30), a first sensor coil(40), a first transmission rod(50) and a magnetic rheological fluid(60). The excitation coil is arranged inside the case. The first sensor coil is arranged inside the case and separated from an excitation coil. The first transmission rod is connected to the excitation coil. The magnetic rheological fluid comprises an air gap between the first sensor coil and the excitation coil.
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