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LVDT Postion Sensor Products

LVDT Products

The PG series LVDTs were designed with feedback from power generation engineers and incorporate features such as a core that cannot break loose because it is totally encapsulated in a large diameter rod along with a housing having an extra thick wall for the sensor’s protection. They are much improved replacements on steam turbines for GE half-bridge-style LVRTs and Westinghouse LVDTs. The LA-25 and LA-27 series LVDTs were designed for heavy industrial use such as in steel, aluminum, and paper mills, as well as in power plants, and offer several cable and connector termination options. LA series LVDTs can be also offered in dual- and triple-redundant packages for the power generation industry.

Need help deciding which sensors is right for your application? Have questions about a particular product? Speak to an experienced application engineer at H. G. Schaevitz Alliance Sensors Group by calling us at 856-727-0250 or contact us by clicking here.

AC LVDT Linear Position Sensors PGSD Series for Power Generation Steam Control Valves

 Linear Position Sensors Specifically Designed and Engineered for Applications in Power Generating Steam Turbine Control Systems

The Alliance Sensors Group PGSD Series linear sensors are the first LVDT-based valve position sensors designed and engineered specifically for applications in electric power generating steam turbine control systems. Many features of the Alliance Sensors Group PGSD Series Position Sensors were requested by power gen controls engineers and are embodied in the PGSD Series Super Duty LVDT. The PGSD Series Position Sensors are available in full ranges from 3 to 15 inch, (76 to 380 mm).  

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AC LVDT Position Sensor Heavy Duty LA-25-A Series

Alliance Sensors Group LA-25-A series LVDT linear position sensors are designed to handle extreme industrial environments. This robust linear sensor has a thick wall aluminum housing (also available in stainless steel), a core enclosed inside of the core extension rod assembly that cannot break loose, while offering a sturdy male thread for easy mechanical connection, and a pair of double contact shaft seals to keep fluids and solid contaminants out of its bore. The sensor’s electrical termination includes the choice of an axial connector or a cord grip with a cable.
An LA-25-A LVDT is ideal for roller gap positioning, head box feedback, process ...

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AC LVDT Linear Position Sensor LA-27-A Series

Alliance Sensors Group LA-27-A series LVDT linear position sensors are designed to handle extreme industrial environments. This robust linear sensor has a thick wall aluminum housing (also available in stainless steel), a core enclosed inside of the core extension rod assembly that cannot break loose, while offering a sturdy male thread for easy mechanical connection, and a pair of double contact shaft seals to keep fluids and solid contaminants out of its bore. The sensor’s electrical termination includes the choice of an axial connector or a cord grip with a cable.
An LA-27-A LVDT is ideal for roller gap positioning, head box feedback, process ...

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AC LVDT Linear Position Sensors PGHD Series Power Generation Steam Control Valves

Alliance Sensors PG Series LVDT linear position sensors are designed and engineered specifically for steam turbine valve position control system applications in electric power plants. Many of the features incorporated in the design were actually requested by power generation controls engineers. PG sensor models include the PGHD Heavy Duty LVDT and the PGSD Super Duty LVDT. Both PG versions are available on special order as mild radiation resistant for operation in BWR nuclear power plants. The PG Series LVDT linear sensors are heavy duty, from the wire connection terminal block inside an IP-68 sealed heavy wall housing to the 3/8 inch outside diameter core rod ...

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AC LVDT Position Sensor LA-21-A series

The LA-21-A series AC LVDTs offers the robust designs for which Alliance Sensors Group is known in typical industrial packages, with full ranges from 3 inches (75 mm) to 15 inches (375 mm). They are supplied in a zinc-plated-steel 0.805 inch (20.5 mm) diameter housing with 4-inch (100 mm) stripped-and-tinned axial leads. Each LVDT’s core is enclosed in a 3/8 inch (9.5 mm) diameter extension rod from which it cannot break loose and has a 5/16-24 UNF or M8 X 1.25 male thread for easy attachment. LA-21-A AC-LVDTs are ideal for stamping or drawing press die opening, injection molding machine platen position, process valve controls, and roller gap feedback in ...

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AC LVDT Linear Position Sensors PGxR Mild Radiation Resistant Series Power Generation Steam Control Valves

LVDT Position Sensor Power Generation Control Valve

Specifically Designed and Engineered for Applications Where Radiation is Present in Power Generating Steam Turbine Control Systems

The Alliance Sensors Group PGxR Series linear sensors are the first LVDT-based valve position sensors designed and engineered specifically for applications in electric power generating steam turbine control systems where radiation is present. Materials selected for the Alliance Sensors Group  PGxR Sensors allow the sensor to survive a dose of 30 Mrads for 40 years. The PGxR series comes in 2 versions- the PGHR heavy duty LVDT and the PGSR super duty LVDT. PGxR Series sensors are available in full ranges of 3 inches 6 inches, 9 inches, 12 inches, and 15 inches.

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AC LVDT Position Sensor Heavy Duty LA-25-R Series

Alliance Sensors Group’s LA-25-R series of AC-LVDT linear position sensors have been designed for use in steel, aluminum, and paper mills; fluid power systems; and steam or hydro power plants. These heavy duty sensors use a thick wall aluminum housing (stainless steel available) with an open bore and radial terminations that include a cable in a cord grip, a heavy duty industrial connector, or an optional high temperature connector, with which the LA-25-R is a natural choice as a heavy duty replacement for older through-bore LVDTs with a radial connector found in some steam power plants for valve position.
The core of the LA-25-R is enclosed in a ...

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LVIT Spring Loaded Linear Postion Sensor GHS-19 Series

The GHS-19 series of LVIT (Linear Variable Inductive Transducer) spring-loaded position sensors by Alliance Sensors Group are contactless devices designed for dimension measurements in QA labs, or position measuring applications in factory automation systems and in various industrial and commercial applications such as automotive testing, mil/aero test stands, robotic arms, and packaging equipment, where the sensing element cannot be attached to the object being measured. GHS-19s are offered in nominal full scale ranges from 6.35 to 100 mm (0.25 to 4.0 inches) with excellent resolution and high stroke-to-body-length ratios. The maximum tip contact force ...
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AC LVDT Position Sensor Heavy Duty LA-27-R Series

Alliance Sensors Group’s LA-27-R series of AC-LVDT linear position sensors have been designed for use in steel, aluminum, and paper mills; fluid power systems; and steam or hydro power plants. These heavy duty sensors use a thick wall aluminum housing (stainless steel available) with an open bore and radial terminations that include a cable in a cord grip, a heavy duty industrial connector, or an optional high temperature connector, with which the LA-27-R is a natural choice as a heavy duty replacement for older through-bore LVDTs with a radial connector found in some steam power plants for valve position.
The core of the LA-27-R is enclosed in a ...

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Dimensional Gaging Probes DGP Series

The DGP Series Dimensional Gaging Probes by Alliance Sensors Group are AC-LVDT based, spring-loaded linear position sensors designed for high precision dimensional gaging applications. Widey used in the automotive, aerospace, and medical industries for machined parts manufacture, Gage R&R, and CpK data, the DGP Series has the precision necessary to make measurements to uphold six-sigma programs. Available in three ranges, the DGP Series spring loaded LVDT has an 8mm diameter, IP-65 rated housing that is slightly shorter than most competitive units. A light spring force of less than 1.25 lbs/inch holds the DGP probe in contact with the part but is light enough ...
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AC LVDT Linear Position Sensor LA-9.5 Series

The LA-9.5 series miniature AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are contactless devices designed for industrial and commercial applications such as factory automation, automotive test stands, solar cell positioners, robotic assembly systems, packaging equipment, and motor sports vehicles. Their compact size, superior performance, and excellent stroke-to-length ratio, make the LA-9.5 AC LVDT sensors ideal for use in test and measurement laboratories, industrial automation equipment, and many OEM positioning applications.


LA-9.5 series AC-LVDTs are ...

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AC LVDT Posiiton Sensor LA-19-A Series

The LA-19-A series AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are contactless devices designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, and engine throttle position feedback. These general purpose linear position sensing devices have excellent price-to-performance and stroke-to-length ratios, making the LA-19-A AC-LVDT sensors ideal for use in test and measurement laboratories, industrial automation equipment, and many OEM positioning sensing applications.

LA-19-A series AC-LVDTs ...

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AC LVDT Position Sensor LA-20.6 Series

The LA-20.6 series AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are contactless devices designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, and throttle position feedback. This general purpose linear device has excellent price-to-performance and stroke-to-length ratios, making the LA-20.6 AC-LVDTs ideal for use in test and measurement laboratories, industrial automation equipment, and many OEM positioning applications.

LA-20.6 series AC-LVDTs are offered in 11 ranges from ...

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AC LVDT Spring Loaded Linear Position Sensor LAS-19-A Series

The LAS-19-A series AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are spring loaded, hermetically sealed, contactless devices designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, pharmaceutical and food manufacturing, and outdoor or wet environment applications. This ruggedized linear device has excellent price-to-performance and stroke-to-length ratios, making the LAS-19-A AC-LVDT sensors ideal for use in power generation and industrial automation equipment, and many OEM positioning ...

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AC LVDT Spring Loaded Position Sensor LAS-19-R Series

The LAS-19-R series AC LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are spring loaded, hermetically sealed, contactless devices with a radial connector, designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, various robotic assembly systems, pharmaceutical and food manufacturing, and outdoor or wet environment applications. This ruggedized linear device has excellent price-to-performance and stroke-to-length ratios, making the LAS-19-R AC LVDT sensors ideal for use in power generation and industrial automation ...

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AC LVDT Posiiton Sensor Hermetically Sealed LHA-19-A Series

The LHA-19-A series AC LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are hermetically sealed, contactless devices designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, pharmaceutical and food processing, and outdoor wet environment applications. These ruggedized linear devices have excellent price vs performance and stroke-to-length ratio, making the LHA-19-A AC-LVDT sensors ideal for use in power generation and industrial automation equipment, and many OEM positioning ...

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AC LVDT Linear Position Sensor Hermetically Sealed LHA-19-R Series

The LHA-19-R series AC-LVDT (Linear Variable Differential Transformer) linear position sensors by H.G. Schaevitz LLC dba Alliance Sensors Group are hermetically sealed, contactless devices with a radial connector, designed for industrial and commercial applications such as factory automation, metal and paper mills, valve position, robotic assembly systems, pharmaceutical and food manufacturing, and wet environment applications. These ruggedized linear devices have excellent price vs performance and stroke-to-length ratio, making LHA-19-R  AC-LVDT sensors ideal for use in power generation and industrial automation equipment, and many OEM positioning ...

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Our Technical Support Staff:  We have more than 150 years and three generations in the position sensor business and are expert application engineers at what we sell. We have real world experience and know how to solve your measurement challenges. Need help technical help with your measurement application? Call us today 856-727-0250. 

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