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Saturday, January 20, 2018

Lvdt News

Macro Sensors Gauge Tank Volume Changes

This diagram shows the LVDT level sensor attached to the side of a tank using a flat-hook assembly. The high-permeability core follows the position of the stainless-steel float. The LVDT electronics sense the core position using magnetic induction. Output is a 4 to 20-mA instrumentation current loop corresponding to the position of the core in the LVDT body.

Configured with a float, Macro Sensors HSIR Series LVDT Linear Position Transmitters are serving as level sensors to measure liquid level changes from a few inches to several feet in gauging tank level volumes. In this LVDT level sensor configuration, a stainless-steel float coupled to a nonmagnetic stainless-steel rod is attached to the high-permeability, armature core of the LVDT. The 4 to 20-mA loop-powered LVDT position transmitter senses the position of the core and, therefore, the level of the float. Sensitivity to the change in level depends on the length of LVDT.

How to Calibrate an AC-operated LVDT Linear Position Sensor

LVC-4000 (Photo: Macro Sensors)

Calibration is necessary before the installation of an AC- operated linear position sensor to ensure accuracy. Calibration corrects any slight variances between sensors, helping to improve repeatability. Because of the linearity of LVDT Sensor output, a simple two-point calibration is simple. Two points should be as far apart as possible, but within the linear range of the LVDT Linear Position Sensor and preferable within the measurement range in which it will be used. In applications where the LVDT is used on both sides of null…

Macro Sensors' New Subsea LVDT Measurement Devices

LVDT Position Sensor: Image credit Macro Sensors

US-based Macro Sensors introduces a line of submersible LVDT Position Sensors for use as part of subsea measurement systems. Macro Sensors say that their LVDTs are proven to offer reliable measurement and feedback for continuous monitoring. The SSIR 937 Series Submersible LVDT Position Sensor is now a standard design available from stock for fast turnaround. Offering extraordinary repeatability in extreme pressure environments, the SSIR 937 Series Submersible LVDT Position Sensors can withstand deep sea environments with external pressures to 5000 psi.

LVDT Position Sensors for Offshore Drilling

ULULC and ATEX Approved LVDT Position Sensors for Worldwide Operation

UL/ULC and ATEX Approved LVDT Position Sensors for Worldwide Operation in Offshore Drilling Markets. Macro Sensors offers the HLR 750 Series of UL/ULC listed and ATEX-approved LVDT Linear Position Sensors for use in the high temperature and high vibration environments such as offshore drilling platforms. In addition to holding a UL/ULC classification for Class 1, Division 1 & Class 1, Zone 2 hazards and Class 1, Division 2 & Class 1, Zone 2 hazards, the LVDT Linear Position Sensors are ATEX approved for use in potentially explosive environments throughout the European Union.

TE Debuts Subsea CiA LVDT Position Transmitter Featuring CANopen Interface

Macro-Sensors-CiA443-PR Credit TE Connectivity

TE Connectivity (TE), a world leader in connectivity and sensor solutions, today announced a new Macro Sensors SSBR-937 Series CANBus LVDT Position Sensor with a  CANopen interface compliant to CiA 443 for subsea instruments. The CiA 443 CANopen profile offers more interoperable and standardized communications to network with devices from different manufacturers used on the ocean floor. The new submersible position sensor withstands deep sea environments with external pressures up to 5000 psi in excess of 1 million hours mean time between failure (MTBF), when encased in special alloys.

LVDT Linear Position Sensors Perform in Hostile Environments

LVDT Linear Position Sensors Available in Different Housings to Perform in Hostile Chemical, Radiation and Seawater Environments. Macro Sensors (www.macrosensors.com) offers its AC-operated LVDTs in different material housings to perform in varying operating environments including those with high and low temperature extremes, radiation exposure, seawater and vacuum pressure conditions. Standard configurations of Macro Sensors’ AC-operated linear position sensors are constructed…

Maritime Reporter Magazine Cover Dec 2017 - The Great Ships of 2017

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