| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a radio communication unit for continuously measuring the physical amount of a rotor without being influenced by the rotational state of the rotor by separating radio slave units connected to a sensor which measures the physical amount of the rotor from a radio master unit which receives the physical amount in terms of distance in the case of measuring the physical amount of the rotor.SOLUTION: A radio communication unit 1 includes: an SAW(Surface Acoustic Wave) sensor 30 which measures the physical amount of a rotor 2; a plurality of radio salve units 10 electrically connected to the SAW sensor 30; and a radio master unit 50 which performs transmission or reception with the plurality of radio slave units 10. Each of the plurality of radio slave units 10 is configured as a microstrip antenna 11, and arranged such that a transmission area T1 of the microstrip antenna 11 is faced to a radial direction from a rotational axis K of the rotor 2, and the radio master unit 50 is arranged at a position separated from the radio slave units 10 with respect to the radial direction from the rotational axis K of the rotor 2.</p> |
