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LVDT-Based Gaging Probes offer precise measuring capabilities.

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LVDT-Based Gaging Probes offer precise measuring capabilities.
LVDT-Based Gaging Probes offer precise measuring capabilities.
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February 28, 2012 - Available in 3 standard ranges of +0.020, +0.100, and +0.200 in., BB Series LVDT dimensional gaging probes combine AC-LVDT with linear ball bearing assembly to reduce radial play and core skewing, resulting in repeatability of 0.000006 in. Spring-loaded LVDTs feature rubber bellows covering probe shaft to prevent contaminants from entering into bearing. Probes are available in 4 models including full bridge, half bridge, pneumatic and soft touch.

LVDT-Based Gaging Probes Offer Highly Precise Dimensional Measurement for Automotive, Medical and Aerospace Parts Manufacture

(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)

Macro Sensors
7300 US Route 130 North, Bldg. 22
Pennsauken, NJ, 08110 1334

Press release date: February 17, 2012

Pennsauken, NJ. Macro Sensors introduces a new line of LVDT-based dimensional gaging probes that provide highly accurate and precise measurement of dimensions in a wide variety of quality control, inspection equipment and industrial metrology applications including online parts inspection, servo-loop positioning systems, and manufacturing process control. Available in four models including full bridge, half bridge, pneumatic and soft touch, the BB Series LVDT-Based Dimensional Gaging Probes can be used in automotive, medical, and aerospace manufacture to control the precise dimensional parameters of their products.

These AC-operated LVDT gage heads can measure the position of a target surface, with an unusually high degree of accuracy. 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 LVDT Dimensional Gaging Probes combine a special AC-LVDT with a linear ball bearing assembly to reduce radial play and core skewing, resulting in exceptional repeatability of 0.000006 inch (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. The BB Series also offer unusually long life of 2 x 108 cycles. Other notable features of these spring-loaded LVDTs include:

  • User-adjustable pretravel
  • Reduced susceptibility to temperature changes
  • Positive stops prevent mechanical damage to the probe from repeated overstroking
  • Rubber bellows covering the probe shaft prevent the entrance of contaminants into the bearing.

    The BB units are available in three standard ranges: +0.020" (+.5.0 mm), +0.100" (+2.5 mm) and +0.200" (+5.0mm). Macro Sensors manufactures a full line of support electronics for these spring-loaded LVDTS including OEM modules, DIN-rail mount line-powered and DC-operated signal conditioners and digital display and control instruments. By combining the BB Series position sensors with an EAZY-CAL(TM) Mini-Module LVDT Signal Conditioner, Macro Sensors offers a fully calibrated and complete linear position gaging system ready for immediate operation.

    For more information, please refer to the web site at or contact sales at

    About Macro Sensors
    Macro Sensors' extensive line of LVDT-based linear and rotary sensors are used for linear position measurement and feedback in a variety of industrial applications including factory automation and motion control systems, as well as for valve position sensing in steam turbine power plants. Incorporated in 1994, the Company offers more than 400 years of cumulative LVDT design and manufacturing experience by its key staff in serving its OEM and end-user international customer base. In June, 2005, Macro Sensors was acquired by AST, a manufacturer of state-of-the-art MEMS-based pressure sensors, transducers, and transmitters. AST sensor products are used in industrial OEM products, hydraulic systems, fuel cells, medical gas test systems, HVAC/R, oil & gas exploration/production, and off-road vehicles. For more information on AST products and technology, visit the AST website at

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