Bullet Sensors & Transducers e-Digest, Vol. 126, Issue 3, March 2011: Product News

    (ISSN 1726-5479)



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Low Cost, Spring Loaded LVDT Offers Lower Price Point for General Purpose, Industrial Gaging Applications without Sacrificing Performance


Pennsauken, NJ – February 24, 2011 - Macro Sensors bridges the gap between price and performance for industrial gaging with its new GPA Series Spring-Loaded Linear Position Sensors. Packaged as a low cost alternative for general purpose gaging applications, these Spring Loaded AC-operated LVDTs maintain the same quality and performance associated with Macro Sensors LVDTs but at a moderate cost.


The GPA Series Spring Loaded Gage Heads are ideal for use in non-harsh environments for general positioning and gaging applications in assembly operations, machine tool and production line inspection as well as quality control and testing labs. Specific applications for these economic Spring Loaded AC-LVDTs include position feedback for pinch and gap roller alignment in printing operations, gaging the thickness of sheet metal during metal forming and stamping operations and ensuring critical dimensions for brake pad manufacturing machines.


Designed specifically to meet the needs of the industrial gaging and OEM marketplace, the GPA Series Spring Loaded Sensors are available in a variety of ranges from ±0.050 inch (±1.25 mm) to ±2.00 inches (± 50.0 mm), with a maximum linearity error of ±0.25 % FRO. Constructed of stainless steel, the front end of the spring-loaded LVDT has a 1/2-20 UNF 2A thread on the housing, allowing the user to install the LVDT into a mating threaded part, or alternatively, ‘bulkhead’ mounted using two furnished hex nuts.


Connected to any standard (differential input) LVDT signal conditioner, these AC-operated Spring Loaded Sensors provide a variety of analog or digital outputs. Electrical interface is via a 3 foot long, 32AWG, 6 conductor, teflon insulated/shielded cable. The entire package meets IEC standard IP-61. Sensors work with programmable logic controllers, limit switching relays or a users’ own conditioning electronics/system. Packaging the GPA Series Spring Loaded LVDTs with Macro Sensors EAZY-CAL™ Mini-Module LVDT Signal Conditioner (http://www.macrosensors.com/MME-1000.html) lowers the cost of an installed system.



About Macro Sensors


Macro Sensors’ extensive line of linear and rotary sensors are used for position measurement and feedback in a variety of industrial applications including factory automation, motion control systems, metal fabricating, automotive assembly as well as power plants, gas/steam turbines.    Incorporated in 1994, the Company offers more than 200 years of cumulative design and manufacturing experience by its key staff in serving its OEM and end-user international customer base.   On June 1, 2005, Macro Sensors was acquired by AST, manufacturer of state-of-the-art (Micro Electro Mechanical Structures) MEMS-based pressure sensors, transducers, and transmitters.   Common applications of AST sensor products are in industrial OEM, hydraulic systems, fuel cells, medical gases, HVAC/R, refrigeration, oil & gas exploration/production, and off-road vehicles. For more information on AST products and technology, visit the AST website at www.astsensors.com





Eileen Otto,

Macro Sensors

7300 US Route 130 North, Pennsauken

New Jersey 07828 USA

Tel.: (856) 662-8000

E-mail: positionsensors@macrosensors.com

GPA Series Spring-Loaded Linear Position Sensor

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