Abstract
The aim of the study is to develop a non-contact fluxgate position sensor to control the open /closed state of the valve. There are many examples of the use in modern technology of elements or devicesthat interact with a magnetic field. One of the most urgent tasks is to use the influence of the magneticfield as a means of control or as a component of the control environment. The use of magnetoopticalsensors for monitoring the functioning of technical objects is due to their non-contact measure ment method, the ability to measure not only magnetic, but also various other physical quantities, therelative simplicity, reliability and low cost of the design of the sensitive element, flexibility in use, operationin low-temperature and high-temperature environments. One of the sensors of this type is a fluxgatemagnetic field converter. Valves of various pneumohydraulic systems are an example of the object ofintroduction of a fluxgate sensor. The essence of the task is to create a non-contact limit switch of thevalve spool, signaling the closed or open state of the valve and transmitting this information to the controlsystem. It is proposed to divide this task into stages and their sequential implementation. First, asearch and analysis of existing solutions, literature on the topic of research of magnetic transducers iscarried out. Next, a model design of the sensor is developed, according to which a geometric 3D modeland a 2D model of the sensing element are created, and the proposed material of the constituent elementsof the sensor is selected. With the help of numerical methods of computer simulation and mathematicalmodels, the operation of the sensor is simulated and its output characteristics are determinedunder various operating modes. According to the design characteristics, the optimal design and configurationof the sensor's sensing element is selected and calculated. As a result of the simulation, assemblyand working drawings of the sensor are developed. The proposed method for solving the problem ischaracterized by the complexity of studying nonlinear magnetic systems and their modeling. The resultsof this study can be recommended for the development of magneto-optical sensors of this or anothertype and for the study of materials with nonlinear magnetic properties.
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