Economy

News on Indian Economy

DRDO Develops Advanced Low-Frequency Vibration Isolation Technology to Make Indian Warships and Submarines Quieter

The latest research focuses on a particularly difficult part of the vibration spectrum: low-frequency vibration. Conventional rubber isolation systems can perform effectively once vibration frequencies rise sufficiently above the natural resonance of the mounting system, but isolating machinery operating at lower frequencies presents a much greater engineering challenge.

PierSight — Building India’s Space-Based Maritime Surveillance Network

Ahmedabad-based PierSight is developing a different approach to this problem by combining Synthetic Aperture Radar, or SAR, with space-based ship-identification data in the same maritime intelligence architecture. The company is building a constellation intended to provide persistent, all-weather monitoring of maritime activity, allowing vessels, oil spills and other activity at sea to be detected through darkness and cloud cover and then correlated with AIS or its newer VDES evolution.

DRDO Developing Ultra-Sensitive Quantum Magnetometers to Detect Submarines Through Their Magnetic Signatures

DRDO Chairman Dr Samir V. Kamat has directly linked the organisation’s quantum-sensing research to submarine detection. He explained that DRDO is working on magnetometers capable of detecting changes in magnetic fields at the picotesla level and said such sensors could eventually be carried aboard UAVs or aircraft. According to Kamat, the technology could potentially enable submarine detection at depths of around 100 to 200 metres. The figure should presently be treated as a projected capability rather than a publicly demonstrated operational detection range.

FPIs Invest ₹23,544 Crore in Indian Equities in August as Foreign Buying Momentum Strengthens

According to the latest depository data, ₹14,118 crore of the August investment came through purchases on stock exchanges, while another ₹9,426 crore entered through the primary market. The sustained buying follows a net FPI equity inflow of about ₹20,200 crore in July, marking a significant reversal after four consecutive months of foreign investor withdrawals.