NewTek Hermetically-Sealed, Spring-Loaded LVDTs Provide Precision Data for Online Parts Quality Control in Automated Assembly

Pennsauken, NJ, February 18, 2019? NewTek Sensor Solutions introduces an extended family of Spring-Loaded LVDTs for highly accurate and repeatable dimensional gaging of components as part of manufacturing quality assurance systems.? Available in AC- and DC-operated versions, these sensors are used in R&D labs for quality testing, printing operations for roller alignment, and automated production lines for dimensional gaging of parts in go/no go inspection. ?Data collected by NewTek gaging probes are used for online quality control and post-process statistical analysis.

Featuring a stainless-steel, spring-loaded probe assembly and welded ?-inch diameter hermetically-sealed housing, NewTek Spring-Loaded LVDT Position Sensors are available in ranges from ?0.050? (1.27mm) to ?2? (50.8mm).? With near-infinite resolution and excellent repeatability, these gage heads operate at linearity of ?0.15% over wide operating temperature ranges of -65?F (-54?C) to 275?F (135?C).

Customized versions of NewTek Spring-Loaded LVDTs operate in higher temperatures up to 400?F (204?C) and environments with radiation up to 30MRad.?? A high-precision gaging probe, available in .315?in (8 mm) and .375 in (9.5 mm) diameters, offers extremely reliable performance in measurement ranges from ?.040? (?1.0 mm) to ?0.200? (?5 mm).

NewTek offers its Spring-Loaded LVDTs in AC, DC voltage, or 4-20 mA current outputs.? The AC-operated LVDT gage heads are ideal for operation in higher temperatures as the sensor is segregated from the electronic circuitry. While the LVDT works in a hostile environment, a signal conditioner – that provides power to the sensor and demodulates output – operates remotely in a benign area. (NewTek offers its NTC-6000 Signal Conditioner for this task.) The output is displayed locally or downloaded into a PLC for statistical process control.

Where temperature exposure is not an issue, a DC-operated LVDT gage head can eliminate the installation and cost of signal conditioning equipment. With electronics built into the assembly, the sensor simplifies mechanical set-up into automated machinery.

NewTek offers both standard off-the-shelf and custom units with a choice of probe contact tips, custom spring rates, and an optional pneumatic probe.? Check out the video at that demonstrates how NewTek Spring-Loaded LVDTs identify when parts in an automated production line are out-of-tolerance.? Data is sent to a PLC that provides an alarm to operators.? For more information on NewTek Spring-Loaded LVDTs, visit To visit our YouTube channel, visit The NewTek YouTube Channel !

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