| 摘要 |
<p>A water content measuring apparatus (10), for measuring water content present in a fluid flow through a tube (20), includes a pulse generator (50) for generating in operation a temporal series of excitation pulses (60), a coil arrangement (30A, 30B, 30C) disposed around the tube (20) adapted to be excited into resonance by the series of excitation pulses (60) and interact with the fluid flow through the tube (20), and a signal processor (80) adapted to receive resonance signals from the coil arrangement (30A, 30B, 30C) for determining a water content present within the tube (20). The coil arrangement (30A, 30B, 30C) includes a resonance coil (30B) having a length-to-diameter ratio which is at least 3:1, and wherein the resonance coil (30B) includes at least 10 turns.</p> |
