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Gas turbine flowmeters utilize advanced ultra-low power single-chip microcomputer technology, which enhances their overall functionality while reducing power consumption, thereby yielding superior performance. It features high precision, good repeatability, no zero drift, and a high range ratio, and is widely used in fields such as petroleum, chemicals, metallurgy, and scientific research. Below, the technical staff from the manufacturer will provide users with a detailed explanation of the four main factors that affect the measurement accuracy of gas turbine flowmeters. 1. Wear and tear Due to the high requirements that gas turbine flowmeters have regarding the medium they handle. If the gas detected by the flow meter is not clean, fine solid impurity particles will adhere to the bearings of the flow meter, causing the bearings to malfunction and the impeller to rotate abnormally, which leads to mechanical wear. In addition, wear also occurs due to the long-term high-speed rotation of the impeller. Gas turbine flowmeters that have been worn experience a decrease in measurement accuracy. 2. Corrosion If the medium being measured contains corrosive gases, these gases will cause corrosion to the rotor part of the flow meter as they pass through it. This leads to corrosion and deformation of the rotor, as well as the loss of its surface layer, which in turn results in changes in the rotor’s mass. Such changes affect the metering parameters of the flow meter and impair its proper operation and measurement accuracy. 3. Blockage During our inspections, we also found that the impellers of some flowmeters were covered with fibrous contaminants such as used threaded sealing tape, which blocked the rotors and reduced the effective flow cross-section through them. This led to significant changes in the flow velocity profile, resulting in distorted measurement data. 4. Oil contamination: Inadequate separation of oil and gas at the site results in black crude oil adhering to the inner walls of most flow meters as well as to the impellers, which hinders the rotation of these impellers. Some of the crude oil enters the gas turbine flow meter along with the gas stream; under the centrifugal force generated by the high-speed rotation of the impellers, it remains inside the housing, causing measurement errors. Flow metering is one of the components of measurement science and technology, and it is closely related to the national economy, national defense construction, and scientific research. Doing this job well plays an important role in ensuring product quality, improving production efficiency, and promoting the development of science and technology. Especially in today’s era of energy crises and increasing automation in industrial production, the significance and role of flow meters in the national economy have become even more evident.