Home » Case Studies » Accurate Torque & Power Measurement onboard INS Vikrant
Table of Contents
Case Study
Accurate Torque & Power Measurement onboard INS Vikrant
Table of Contents
Background
Industry
Defence
Solution
TorqueSense
-Non-Contact
Torque & Power
Measurement
System
Make & Model
Indigenous System by Neptunus
Asset
INS Vikrant
– India’s First Indigenous
Aircraft Carrier
Objective
To assess the accuracy and reliability of Neptunus’ non-contact torque measurement system by comparing its performance with the existing torque monitoring system on board INS Vikrant.
Challenge / Problem Context
Unreliable Traditional System: The Indian Navy had an unsatisfactory experience with strain gauge-based torque measurement systems, which were prone to inaccuracies and operational issues.
Requirement for Accurate and Rugged System: The Navy needed a precise, maintenance-free solution that could perform under the demanding operational conditions of a warship.
Need for Seamless Integration: The solution had to be easy to deploy on both the Port and Starboard shafts without involving complex electronic components or moving parts.
What Did We Do?
Replaced Traditional Strain Gauge System: Neptunus introduced a made-in-India, non-contact torque measurement system using dual Magnetic Pick-Up (MPU) sensors—eliminating the need for moving parts, strain gauges, or electronics on the shaft.
Installed on Both Shafts: The TorqueSense system was successfully installed on both the Port and Starboard shaft lines (each of 44 MW capacity) of INS Vikrant.
Conducted Phased Sea Trials: Multiple phases of sea trials were conducted to gather accurate operational data across various ship operating conditions.
Data Validation: The system's torque and power data were compared against the ship’s Integrated Platform Management System (IPMS) for validation and performance assessment.
Results That We Achieved
Accuracy Confirmed: The TorqueSense system demonstrated an accuracy of +/-1%, with data closely aligned with the IPMS readings.
Positive Acknowledgment from Navy: The ship’s staff acknowledged the accuracy and performance of the system, validating its operational suitability.
Seamless Integration Achieved: The solution proved easy to install and operate, with no interference from external vibrations, and required no shaft modifications.
Proven Replacement for Conventional Torsion Meters: TorqueSense successfully replaced strain gauge-based torsion meters and is now deemed ready for deployment across other naval platforms.
