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Obtain Precise Dimensional Measurement with LVDT-based Probes

By Design World Staff | March 12, 2012

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Among the many options available for dimension measurement, one is an LVDT-based dimensional gaging probe. The BB Series LVDT Dimensional Gaging Probes accurately measure dimensions in quality control, inspection equipment and industrial metrology applications including online parts inspection, servo-loop positioning systems, and manufacturing process control in automotive, medical, and aerospace manufacture.

LVDT Dimensional Gaging Probes

These ac-operated LVDT gage heads are available in four models, including full bridge, half bridge, pneumatic and soft touch, and can measure the position of a target surface, with an unusually high degree of accuracy. They combine a special AC-LVDT with a linear ball bearing assembly to reduce radial play and core skewing for repeatability of 0.000006 in. (0.15 microns).

The use of an LVDT for probe shaft displacement sensing eliminates any additional transducer errors due to friction, stiction or mechanical hysteresis. Complete systems for “go/no/go” inspection of complex mechanical parts can be assembled using several gage heads mounted in suitable fixtures. The BB Series also offer a life of 2 x 108 cycles. Pretravel is adjustable. These probes are less susceptible to temperature changes. Positive stops prevent mechanical damage to the probe from repeated overstroking.

The probes are available in three standard ranges: +0.020 in. (+.5.0 mm), +0.100 in. (+2.5 mm) and +0.200 in. (+5.0mm).

Macro Sensors
www.astsensors.com

::Design World::


Filed Under: Aerospace + defense, Sensors (position + other), Test + measurement • test equipment

 

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