Feasibility cum RFI response for DRDO’s TDF projects
Optical Torsionmeter
Currently, torsionmeters that utilize strain gauge technology are commonly used for measuring shaft torque or power. These strain gauges operate on the Wheatstone bridge principle, where the strain on the shaft, proportional to its twist or torque, is measured. While effective, strain gauge-based torsionmeters are prone to frequent defects due to various factors. The limited lifespan of the strain gauge on the shaft, the delicate nature of the sensors, and the challenging, often inaccessible locations in the shaft space all contribute to operational difficulties. Additionally, the harsh and non-conducive environments within the shaft further increase the likelihood of system failure.
Usage of non-contact optical technology for shaft/torque measurement has advantages of non-contact power/signal transmission, no requirement of delicate strain gauges, robust design and easy installation/maintenance leading to a more reliable defect free system
Functional and Operational Requirements
This project supports the indigenization of critical defence components, ensuring self-reliance, it will enhance the control on repairs. Required for measuring shaft torque/power for naval application.
The new tool should address the following:
A.) Increased lifespan and reliability torsion meters.
B.) Reduced maintenance costs and operational downtime.
C.) Enhanced accuracy and performance consistency during extended operations.
Testing and Certification Requirements
The optical torsionmeter must undergo accuracy, reliability, and environmental testing (temperature, humidity, vibration). It should meet standards for torque measurement precision, system integration, and operational durability in various conditions.
Certification is required from NDD, DNQA and NMRL.
Link to know more and apply: https://www.drdo.gov.in/drdo/feasibility-cum-rfi-repsonse-tdf-projects-20-nos