Sensor module suitable for electric-conducting multiphase flow wire mesh measurement system

Abstract

The invention discloses a sensor module suitable for an electric-conducting multiphase flow wire mesh measurement system. The sensor module comprises a baseplate, a circuit board arranged on the baseplate, and a roof arranged on the circuit board; the shapes and the hole positions of the roof and the base plates are same; the circuit board comprises a substrate, a bonding pad and a wire mesh measurement array for sensing multi-phase flow parameters; the wire mesh measurement array is welded on the substrate through the bonding pad; the circuit board further comprises signal emitter interfaceand a signal receiver interface connected with the wire mesh measurement array; the slots matched with the signal emitter interface and the signal receiver interface are formed on the roof and the baseplate. Through the modular design, the amount of the circuit board can be flexibly selected to realize different measurement demands; the sensor module can be arranged at different locations of the flow field through flange connection, the emitting arrays and receiving arrays are mutually independent and directly connected with the corresponding interfaces, and the signal transmission is reliableand free from mutual interference.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a sensor module suitable for a conductive multiphase flow wire mesh measurement system. Background technique [0002] With the rapid development of modern industrial technology, the study of multiphase flow has quickly become an important branch of fluid mechanics, and has been widely used in civil fields such as refrigeration, petroleum, energy, and high-tech fields such as aviation and aerospace. The flow law of multiphase flow is of great significance to these fields. In the visual measurement of multiphase flow conditions, process tomography measurement technology is widely used, which is divided into electrical, ultrasonic, ray and optical types. [0003] The measurement system based on the wire mesh sensor is a technology widely researched and applied at home and abroad in recent years. It is a kind of electrical process tomography measurement technology. It uses a double-layer ele...

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Problems solved by technology

However, most of the current technologies focus on the measurement principle and data post-processing, and rarely involve specific sensors. The sensors designed by relevant scholars when using this technology for measurement generally have the following shortcomings: (1) integrated with the experimental section or composed of relatively Composed of multiple parts, it cannot be disassembled to measure the flow field at different positions in the experimental section; (2) only one pair of transmitting / receiving arrays does not support the measurement of axial velocity; (3) the control of the wire mesh spacing and layer spacing is not accurate; ( 4) The transmitter and receiver are connected to the sensor through remote signal transmission, and the signal may be interfered during transmission; (5) It is difficult to maintain after the metal wire is loose or broken by fluid; (6) The transmitting array and receiving array are separated, and the assembly is cumbersome And increase the difficulty of sealing

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