← Product News← Company News

Fuel Controls: A Critical LVDT Application

Wednesday, July 26, 2023

Fuel controls are an integral component of many industries, particularly in the aerospace sector. They are indispensable in managing the flow and pressure of fuel to engines, ensuring that they function efficiently and safely. One of the most important tools in fuel control systems is the Linear Variable Differential Transformer, or LVDT, a type of electrical transformer used for measuring linear displacement (position). This article will delve into the intricate role of LVDTs in fuel control systems, highlighting their significance and how they enhance the operations in different sectors.

Understanding LVDT: A Brief Overview

Before we delve into the heart of the topic, let's first understand what an LVDT is. An LVDT is a non-contacting type position sensor that converts the linear motion of an object to which it is coupled mechanically into an electrical signal. Its key components include a primary coil, two secondary coils, and a moveable magnetic core. When an alternating current (AC) is applied to the primary coil, it induces a voltage in the secondary coils based on the core's position. The differential voltage from the secondary coils, hence, serves as an accurate measure of the position of the object.

One of the main advantages of an LVDT is that it provides absolute, repeatable measurements over a wide range of temperatures, pressures, and other harsh environmental conditions. It also offers exceptional resolution and repeatability, making it ideal for precision applications.

LVDTs and Fuel Control: A Dynamic Duo

Fuel control systems play a crucial role in various industries, especially aviation and energy. These systems regulate the flow of fuel into the engines, balancing the need for power against the need for efficiency and safety. Too much fuel can lead to wastage and potential safety risks, while too little can cause an engine to underperform or stall.

This is where LVDTs come in. In a fuel control system, an LVDT can precisely control the position of a valve or other mechanical device that regulates fuel flow. By providing accurate, reliable position feedback, the LVDT allows the system to adjust fuel flow to meet the engine's demands precisely.

For example, in an aircraft, the fuel control system must constantly adjust the amount of fuel being sent to the engines to accommodate changes in altitude, speed, and other flight conditions. An LVDT can provide the precise position feedback necessary to make these adjustments in real time, ensuring that the engines are always receiving the right amount of fuel.

Additionally, the non-contact nature of LVDTs means they can operate in harsh conditions without wear or degradation, making them perfect for use in industries like aerospace and energy, where conditions can be extreme.

Safety and Efficiency: The Main Priorities

Beyond ensuring optimal performance, LVDTs in fuel control systems also contribute significantly to safety and efficiency. With their exceptional repeatability and low hysteresis, LVDTs provide consistent, reliable feedback, even under demanding conditions. This reliable performance helps prevent potentially dangerous situations, such as fuel leaks or overflows, and ensures that the engine operates efficiently.

Moreover, because they operate without any physical contact, LVDTs suffer very little wear, which translates into a longer lifespan and reduced maintenance needs. This also leads to increased operational efficiency, as less time and resources are spent on repairs and replacements.

LVDTs are undoubtedly a vital component in fuel control systems, providing precise control and ensuring safety and efficiency. By providing accurate, reliable feedback in real time, they enable fuel control systems to adjust to the engine's needs quickly and precisely, enhancing performance, safety, and efficiency. Whether in an aircraft soaring high above the clouds or a power plant generating electricity on the ground, LVDTs' importance in fuel control systems cannot be understated.

Interested in learning more?
Contact Us →