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Oscillations, Waves, and Interactions - GWDG

Oscillations, Waves, and Interactions - GWDG

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340 R. Pottel, J. Haller <strong>and</strong> U. Kaatze<br />

Figure 5. Block diagram of semi-automatic microwave double-beam interferometers for<br />

the dielectric spectrometry of liquids [52]: 1, signal generator; 2, uniline; 3, directional<br />

coupler; 4, variable attenuator; 5, impedance transformer; 6, sample cell with 7, sealing<br />

dielectric window <strong>and</strong> 8, precisely shiftable probe; 9, flexible waveguide or coaxial line; 10,<br />

digital distance meter with 11, control unit; 12, stepping motor with 13, control unit; 14,<br />

phase shifter; 15, power sensor; 16, level meter; 17, frequency counter; 18, process control<br />

computer.

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