首页>
外国专利>
Tubular resonant microwave sensor for use in oscillator-circuit arrangement, has electrically conductive planar resonator in form of coil planarly arranged in plane transverse to longitudinal direction of housing and including opened end
Tubular resonant microwave sensor for use in oscillator-circuit arrangement, has electrically conductive planar resonator in form of coil planarly arranged in plane transverse to longitudinal direction of housing and including opened end
The sensor (1) has a sensor head (9), and a microstrip supply line (4) for supplying high-frequency signals. An electrically conductive planar resonator in the form of a coil (6) is arranged at an end of the line and adjacent to the sensor head, where an end of the resonator is opened and the sensor head has a sensitive material (8). The line is arranged in a cylindrical pipe for a housing (2), where the end forms the cylindrical sensor head and the resonator is planarly arranged in a plane transverse to a longitudinal direction of the housing. An independent claim is also included for a frequency determination-circuit arrangement for broadband determining of characteristic frequency of a measuring signal of an oscillator-circuit arrangement.
展开▼