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...and two secondaries.The transfer of current between the primary and the secondaries of the LVDT displacement transducer is controlled by the position of a magnetic core called an armature.On our position measurement LVDTs, the two transducer secondaries are connected in opposition. At the centre...

...calibrated measurement range. Beyond this range the output becomes increasingly non-linear. Measurement range is defined as ± distance from the transducer null position. Half Bridge, LVDT and digital transducers. The linear Variable Differential Transformer (LVDT) and Half-Bridge are two alternative...

...and a maximum output current of 20 mA. The housing has been designed to provide high resistance to mechanical stress. Gentech, Ayrshire, Scotland, UK. www.gentechsensors.com. Position sensors A series of miniature linear variable differential transformers (LVDTs) for position measurement is designed for tight...

Linear variable displacement transducers (LVDTs) provide a method of measuring displacements with very high accuracy and infinite resolution. These type of transducers utilize a precision linear variable differential transformer (also referred to in the industry as LVDT) as a measuring source...

variable differential transformer-based position sensors offers two series of hermetically sealed, loop-powered 4 -20 mA position transmitters. The HSI 750 and HSR 750 series units are specifically designed for mechanical position measurement in applications where a hard connection can be made...

A position change of the core. causes a differential in inductance between. Strain gage transducers, especially the car-. the two secondaries and thus a change in. tridge type, narrow web and tension roll. voltage output. The magnitude of output. types are more accurate than LVDT trans-. change...

Differential Transformer. Optical Encoders. Linear variable differential transformers (LVDTs), and their. Optical encoders offer fast response times and simple rotary counterpart rotary variable differential transformers. output interface. However, they can be expensive to (RVDTs) are electromechanical...

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  • Desirable characteristics for rotorcraft optical components
    ...of progress was attributed to inadequate funding and not enough communication between the suppliers and the system... EVOLUTION OF VMS ELECTRICAL TRANSDUCERS Linear and rotary position are mea- sured with Variable Differential Transformers (VDTs), a technology that was developed over a number of decades and were initially used in non-critical applications.
  • GE Gas Turbines Employ Macro Sensors LVDTs
    Macro Sensors, a sensor manufacturer based in US has been certified to become an approved Linear Variable Differential Transformer (LVDT) supplier for GE gas turbines. The LVDTs are used for position measurement on interceptor valves, throttle valves, stop/reheat valves, governor valves and... The LVDT is a standard type of electromechanical transducer capable of converting an object’s rectilinear motion to...
  • Communicate With Up To 254 Units On Single Serial Communication BUS With The 4215-LVDT Smart Indicator
    Suppliers The 4215-L is designed for the measurement and control of dual channel LVDT ( Linear Variable Differential Transformer ) measurement fixtures. In addition to its standard configuration, the Model 4215-LVDT is capable of mixed transducer interfacing, including LVDT, DC Strain Extensometer, and Quadrature encoder-based position measurement devices.
  • An Experimental Device for Material Characterization of Powder Materials
    The calibration of the sen- sors is made by the supplier and also checked during the experiment... ...the amplifier and the sensors gives a pressure range during the measurements that varies between 0–218 and... ...maximum pressure values, the sensors have a maximum of 0.5% Full Scale Output (FSO) linear deviation. ...lost when the powder is compacted so that the upper powder surface is positioned below the top... During the experiments, all displacements are deter- mined using a linear variable differential transformer . The external force transducer measuring the friction force, a Vetek PA6181, had a capacity of 50 kN.
  • Linear Variable Differential Transformers (LVDT) Operation, Handling and Selection
    • Key Suppliers Linear Variable Differential Transformers (LVDT) Operation, Handling and Selection Linear Variable Differential Transformers (LVDTs) are linear position /displacement transducers that are exceptionally rugged, frictionless and provide a long cycle life with proper use.
  • Handbook of Noise and Vibration Control Complete Document
    ...irregularity will cause a change in probe gap that is not a shaft position change, resulting in... ...composition all the way round its surface so that the resistivity does not vary as the shaft... Another commonly used displacement transducer is the linear variable differential transformer (LVDT). More detail on the principles of operation of these devices are available in publications from commercial suppliers .
  • Handbook of Noise and Vibration Control - Chapter 37. Vibration Transducer Principles and Types of Vibration Transducers
    ...irregularity will cause a change in probe gap that is not a shaft position change, resulting in... ...composition all the way round its surface so that the resistivity does not vary as the shaft... Another commonly used displacement transducer is the linear variable differential transformer (LVDT). More detail on the principles of operation of these devices are available in publications from commercial suppliers .
  • Chapter 2: Input-output Devices On GlobalSpec
    • Suppliers by Name The input devices considered include digital and analogue devices such as mechanical switches for position detection, proximity switches, photoelectric switches, encoders, temperature and pressure switches, potentiometers, linear variable differential transformers , strain gauges, thermistors, thermotransistors and thermocouples. The term transducer is generally used for a device that converts a signal from one form to...
  • Sensotherm Acquired by Measurement Specialties
    • Supplier Profile ...based systems to measure precise ranges of physical characteristics such as pressure, temperature, position , force, vibration, humidity... MEAS uses multiple advanced technologies – piezo-resistive silicon sensors, application-specific integrated circuits, micro-electromechanical systems ("MEMS"), piezoelectric polymers, foil strain gauges, force balance systems, fluid capacitive devices, linear and rotational variable differential transformers , electromagnetic displacement sensors, hygroscopic capacitive sensors, ultrasonic... • Measurement Specialties Introduces Pressure Transducers for Demanding Industrial Applications .
  • Industry’s First Intelligent LVDT Controllers And Indicators Simplify Application Set-Up, Offer Precise Output
    Suppliers ...NJ - Macro Sensors, a sensor company specializing in the manufacture of LVDT-based linear sensors and gaging... Offering precise measurement for applications utilizing AC- and DC-operated LVDT (Linear Variable Differential Transformer ) inputs, Macro Sensors Series DMC Dual Channel LVDT Controllers and Series DMI Single Channel LVDT Indicators offer user-friendly set-up with a scrolling display that actively... Its DC LVDT input module is designed to drive the signals for two DC-LVDT transducers DMC Digital Controllers feature microprocessor-based logic and advanced software to provide digital position indication and cross...
  • Fuel-element profilometer for the HFEF
    An LVDT ( linear variable differential transformer ) is an electro- mechanical transducer that produces an electrical output proportional to the movement of an iron core in a magnetic flux (see Fig. 7). the position of the core. A supplier of sapphire rods has been found who will supply rods with a cylindrical tolerance of...