NewTek Sensor Solutions is expanding its capacity to customize large-bore LVDT position sensors for applications where standard or small-bore sensors do not meet performance, durability, or measurement range requirements. These sensors are designed for systems with large moving components, high mechanical loads, or harsh environmental conditions.
NewTek’s large-bore LVDTs are often used with isolation tubes in underwater, nuclear, or hydraulic applications to prevent direct exposure to harsh environments. In these setups, the sensing coil is mounted outside the pressure boundary, while the ferromagnetic core moves within the boundary inside the tube. The sensor detects movement through the nonmagnetic wall, maintaining measurement performance while protecting the electronics from the surrounding media.
While performing the same function as standard LVDTs, NewTek’s large-bore models have a wider internal bore, usually between a half inch and up to three inches. This makes these LVDTs versatile within a wide range of applications:
- Long travel measurement while maintaining tight linearity.
- Stronger mechanical performance, with the extra space within the LVDT housing prevents bending, buckling and vibration ware, especially in long-stroke or high-side-load applications.
- Enhanced performance in severe environments with high pressure, high temperature, corrosive fluids or radiation exposure.
- Improved signal stability with reduced electrical noise in noisy or EMI-sensitive environments compared to other position sensing technologies.
Large-Bore LVDT applications
In high-pressure or chemically-aggressive environments requiring physical separation between the sensing coil and media, the LVDT is mounted externally, while the core moves inside the isolation tube. To maintain magnetic coupling across the isolation tube, a large-bore LVDT, sometimes with a larger core, can maintain signal strength. A larger core compensates for the increased separation and potential signal attenuation, ensuring adequate signal strength and measurement accuracy.
NewTek large-bore LVDTs are used across several industries, including oil and gas, hydraulic systems, and manufacturing. For instance, they can be applied in hydraulic and pneumatic cylinder positioning for injection molding machines, where large piston rods require thicker cores to provide reliable feedback and a durable mechanical connection.
NewTek designs custom LVDT sensors in various shapes, sizes, and housings to meet specific application needs. The company is developing a sensor with a three-inch housing diameter, highlighting its ability to provide durable and scalable designs.
NewTek Sensor Solutions
Filed Under: Sensors