| 摘要 |
A multi-channel, common-line transmission system linking a plurality of flowmeter primaries installed at different points in a process to a remote receiving station. Each primary includes a flowmeter adapted to measure the flow rate of fluid passing through the flow conduit in which it is interposed by generating physical variations as a function of flow rate, these variations being sensed by a resonator element included in a channel oscillator whose carrier is modulated accordingly. The channel oscillators of the flowmeter primaries are assigned different frequencies within a predetermined spectrum. The modulated-carrier signals from the channel oscillators are fed over the common line to the remote station where each signal is demodulated.
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