A new type of coriolis mass flowmeter scale software design

Abstract: a new software design of the coriolis mass flowmeter scale information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Abstract: this paper expounds the measuring fluid velocity, density and flow rate of a new type of coriolis mass flowmeter software part of the design and implementation. And the key technology, Density and flow rate formula) And the difficulties ( Floating point Numbers to ECD code conversion) Do the concrete. More flow meter manufacturers choose model price quote you are welcome to inquire, here is a new type of coriolis mass flowmeter scale software design article details. This paper expounds the measuring fluid velocity, density and flow rate of a new type of coriolis mass flowmeter software part of the design and implementation. And the key technology, Density and flow rate formula) And the difficulties ( Floating point Numbers to ECD code conversion) Do the details. Preface to the coriolis mass flowmeter, it is a kind of the use of fluid through the vibration of the pipeline are too when the force is proportional to the fluid quality made of the principle of direct type high precision automation instrument. It widely used in process industries such as oil, chemical, pharmaceutical, food and other media measurement, compared to ollie mass flowmeter and other products and has three advantages: ( 一) Don't need to pressure correction; （ b） Integrating measure flow, temperature, density; （ c) Inside have no moving parts, so even though the medium of lubrication performance is poor, reading is not affected. In order to improve the measuring accuracy of coriolis mass flowmeter, we use PLD device developed a new generation of u-shaped double tubular type mass flowmeter, the two-way signal obtained by the test tube and temperature signal counting method for processing. This method compared with similar products the system has small volume, low power consumption, strong function, high precision, strong adaptability etc, this paper mainly introduces the system structure of this new type of coriolis mass flowmeter, the realization of the hardware and software and the key technology and difficulty. Typical CMF sensor is the main part of the flow tube, drive coil detector and measuring temperature of thermistor. The flow tube with U, ZhiGuanXing shape, etc. We adopted double U tube. Flow tube natural frequency of vibration, when fluid through the natural frequency of vibration sensor, the coriolis force. Located in the flow tube into the stream side and discharge side of the two detectors and same frequency can be detected two road, but have a phase difference of vibration signal. The phase difference with the instantaneous flow rate is proportional to the. When the flow rate increases, the two detector signal time difference ( The equivalent phase difference) Becomes greater. Vibration signal cycle is closely related to fluid density, the greater the fluid density, the greater the vibration period. So based on the two-way signal phase difference and the cycle for processing, can get velocity and density of the fluid. The whole using PLD technology of Richard olivier mass flowmeter system structure is shown in figure 1. The original phase, cycle, temperature signal, such as the need after digitized for further processing. Produced by test tube two way has a phase difference of the sinusoidal signal through the analog part of the processing to generate two way with cycle, phase difference of the square wave signals, along with the temperature sensor of temperature signal is sent to the data acquisition unit. Here, they are digital sampling, and then the frame coding and storing in FIFO. MCU is responsible for data processing, and PLD module is responsible for the synchronization of the whole system and all kinds of control signals. Flow measurement system at the same time, by measuring the natural frequencies of the vibration tube, calculate the pipe flow medium density, and display. System USES character dot matrix LCD display, instantaneous flow, medium density is used to display parameters such as temperature, time, media. When the accident off electricity system, the use of the watchdog inform SCM, in the block to the EEPROM quickly save system parameters, so that the next time you start the original measured can be make full use of historical data. System can undertake serial asynchronous communication with the host, ready to transmit data to the PC host. The software design part of the system software design using modular structure, by the main program and subroutine ( Including the interrupt service routine) Composition.
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Basically, you cannot have a u shape coriolis mass flow meter without having the right mass flow meter. Since you are going to use it regularly, be sure to invest in one that has a high quality.