Performance Considerations in Selecting a Mass Flow Meter

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The performance of a mass flow meter is mainly considered from two aspects. One is the measurement accuracy, but the zero point stability. The factors affecting these two aspects can be divided into two parts.: The first is the sensor part. The processing technology of the sensor is the decisive factor in the stability of the sensor. The most intuitive evaluation method is to see what processing equipment the flowmeter manufacturer has. ； The second is the transmitter part. The transmitter is divided into two generations of technology. The first generation is called Analog analog pulse measurement method, and the second generation is DSP processing technology (ie MVD technology). The first generation technology has a great impact on the measurement accuracy and zero point stability on the circuit. The second generation DSP technology has no impact on accuracy and zero point stability. Therefore, when choosing a mass flow meter from a professional perspective, it is not about whether it is imported or domestic. First, you should check whether its processing technology is DSP technology. Second, it also depends on the process support capabilities of your processing equipment! Digital Signal Processing (DSP for short) is an emerging discipline that involves many disciplines and is widely used in many fields. Since the 1960s, with the rapid development of computers and information technology, digital signal processing technology has emerged and developed rapidly. Over the past two decades, digital signal processing has been widely used in communications and other fields. Digital signal processing uses computers or special processing equipment to collect, transform, filter, evaluate, enhance, compress, identify and other signals in digital form to obtain signal forms that meet people's needs. Analog simulation technology is electronic design, a technology that realizes a certain logical function through the design of analog circuits. 　　Analog technology relies on the size of the current or the level of the voltage to express the meaning of the signal. As long as the interference signal affects the size of the current or the level of the voltage, the signal will be meaning and cause interference. 　　Analog technology is based on imitation and experience and is uncontrollable, while digital technology is based on optimization and procedures and is controllable.