Intermittent measurement method and system based on guided wave radar level meter
A guided wave radar and measurement method technology, applied in the field of measurement, can solve the problems of reduced measurement accuracy and long response time of intermittent level measurement, and achieve the goals of avoiding error accumulation, improving response time and measurement accuracy, and improving waveform acquisition accuracy Effect
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Embodiment 1
[0024] A kind of discontinuous measurement method based on guided wave radar level gauge that this embodiment involves, comprises the following steps:
[0025] S1. Generate and transmit radio frequency radar pulse signals through the radar signal transmission circuit, and transmit the radar pulse signals to the measurement medium, and then return the radar echo signals;
[0026] S2. Receive the returned radar echo signal through the signal receiving circuit, and collect the echo signal. After the collected radar signal is amplified and filtered by the subsequent stage, it is converted into an identifiable numerical value level signal, and the numerical value is calculated. Bit signal processing;
[0027] S3. The signal receiving circuit is controlled by the multiplier point acquisition circuit to realize fixed-point signal sampling, so as to avoid error accumulation caused by invalid signal acquisition.
[0028] Such as figure 1 As shown, in step S1, the radar signal transmi...
Embodiment 2
[0032] Such as figure 1 As shown, the present embodiment is based on the intermittent measurement method based on the guided wave radar level gauge described in Embodiment 1, and the system for realizing the method includes a main control circuit, a radar signal transmitting module, a radio frequency interface, a sampling module, An amplification module, a filter module and a data acquisition module, the data acquisition module is bidirectionally connected to the main control circuit; the radar signal transmitting module is also sequentially connected to a delay module, a frequency multiplication point acquisition module and a pulse module; the pulse module is connected to the pulse module The sampling module is connected; the main control circuit is connected with the frequency multiplication point acquisition module.
[0033] The main control circuit, the radar signal transmitting module, and the radio frequency interface constitute a radar signal transmitting circuit; the r...
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