Sensor Manufacturer Reaches Custom Design Milestone 646f760748f7c

Sensor manufacturer reaches custom design milestone

May 25, 2023
NewTek designed its 100th custom LVDT position sensor for downhole drilling applications

NewTek designed its 100th custom linear variable differential transformer (LVDT) position sensor with a vented body and modified lead lengths to address the unique operating specifications for a downhole drilling application.

In a high-shock environment with pressures up to 10,000 psi and temperatures up to 400 °F (200 °C), NewTek’s NT-R high temperature sensor can equalize pressure inside and outside with venting holes in the housing. It can operate reliably in temperature extremes of -65 °F to 400 °F and operating pressures of 30,000 psi.

To meet unique operating and configuration specifications, NewTek can engineer and manufacturing custom versions of its standard ac- and dc-operated LBDT position sensors.

Customizations may include radiation and submersion resistance, higher temperature exposures, ratiometric output, high stroke-to-length ratios, specific electrical output requirements, ceramic and special core materials, and the use of special alloys such as Monel, Inconel, Hastelloy and Titanium in the construction of the sensor body.

Examples of LVDT customizations include:

• A high-temperature LVDT position sensor was built to withstand extreme temperatures exceeding 1000 °F (538 °C) in a material testing environment.

• An ac-operated position sensors fabricated to withstand shock and vibration associated with the unique environment conditions of ascent and operation in space travel.

• An ac-operated LVDT position sensor designed with a custom core rod replaced a failed LVDT for a power generation station.

• An LVDT gage head outfitted with a custom spring for higher stiffness performs in a dynamic manufacturing application where cycles in an automated process were too fast for a sensor with a standard spring-loaded probe.

• LVDTs welded with stainless blocks and flanges remain rugged when operating within a steam turbine.

• A LVDT constructed of Monel 400 provided greater resistance against pitting caused by oxidation when used in a seawater application.

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