What are the main parameters of ultrasonic flowmeter selection??

『Main parameters of ultrasonic flowmeter』Related information(flow rotameter|digital flow meter|balo meter|hydraulic flow meter|volumetric meter|positive displacement meter|pitot tube flow meter|displacement meter|cfm meter|variable area flow meter|inline flow meter|differential pressure flow meter|calibrated flow meter|velocity meter|paddle wheel flow meter|oval gear flow meter|anemometer hvac|multiphase flow meter|doppler flow meter|thorpe tube flowmeter|heat flow meter)

1. Doppler ultrasonic flowmeter

2. Relationship between minimum flow rate and range ratio 1:400 of ultrasonic flowmeter

Relationship between minimum flow rate and range ratio 1:400 of ultrasonic flowmeter Core conclusion: Range ratio 1:400 means that the minimum measurable flow rate is 1/400 of the full-scale flow rate, which directly reflects the lower limit and sensitivity of the instruments measurement range. 1. Rangeability is defined as the ratio of maximum flow rate to minimum flow rate. 1: 400 indicates that the minimum measurable flow rate of the instrument is 1/400 of the maximum flow rate while ensuring accuracy. For example, when the full scale is 400m ³/h, the minimum measurable flow rate is 1m ³/h

2. Factors affecting minimum flow rate • Sensor sensitivity: High frequency ultrasonic probes (usually above 1MHz) can detect lower flow rate signals. Signal processing algorithm: using FFT or cross-correlation algorithm to enhance small signal recognition ability. Pipeline conditions: The length of the straight pipe section should be ≥ 10D (D is the pipe diameter) to ensure a stable flow field. three Technical Implementation Key Parameters | Parameter Items | Typical Requirements | | -------------------------------------------------------------------------------------------------------- Selection precautions: The a

3. What parameters do I need to know when selecting an ultrasonic flowmeter??

In general, the selection requires on-site parameters provided by the instrument manufacturer, including:

1. Type of measuring medium

2. Temperature scale, turbidity, and corrosiveness of the medium

3. Nominal pressure

4. Flow rate

5. Diameter and material selection of the pipeline. When selecting the instrument performance parameters required by the customer themselves, they include:

1. Installation method of the high voltage front sensor: external clamp, insertion type, pipe section type

2. Amplifier form: power supply, output signal (current, pulse, communication)

3. Whether to install it separately~~~Liusui Nian is a professional manufacturer and seller of high-throughput instruments. Welcome to discuss and negotiate~~~~~

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