M/s Vashishtha Research Pvt Ltd., the startup company incubated under Department of Aerospace Engineering IIST (by one of our research students) has successfully developed and delivered a halogen lamp based thermal excitation system to CMSE/ ISRO. The system is capable of generating thermal loading profiles of step, sinusoidal, frequency modulated and coded excitation. The system also includes an indigenously developed lamp controller board and software GUI. It can be used for thermographic inspection of aerospace structures.

M/s Vashishtha Research Pvt Ltd., the startup company incubated under Department of Aerospace Engineering IIST (by one of our research students) has successfully developed and delivered a 4 axis filament winding machine to IIT Jammu. The machine is capable of winding mandrels up to 1.5m long and 0.4m in diameter at speeds of upto 20000 mm/min. It is capable of accommodating 6 spools with 1.5L heated resin bath. An indigenously developed filament winding pattern generation software is also supplied with the product.

Bright Quantum Squeezed Light in IIST Quantum squeezing refers to quantum noise reduction beyond the standard quantum limit (SQL), the minimum noise limit in classical physics. In IIST, for the first time in India, we have generated the bright-entangled twin beams of light and measured their intensity-difference squeezing of 4 dB, corresponding to a 60% noise reduction from the SQL. The squeezed light is an important resource for quantum communication and quantum cryptography, quantum enhanced sensing and quantum information processing.

A common aerosol sampling inlet system (ASIS) is designed and developed at IIST to sample the ambient aerosols to characterize their physical, optical, and chemical properties (Figure 7). The developed inlet system can provide humidity-controlled aerosol flow at rates up to 38.4 liter/minute at a particle size-cut of 10 µm. The custom-designed diffusion dryer in the ASIS effectively reduces relative humidity (RH) by 34-40% on an average at a flow rate of 10 liter/minute, even under extreme RH conditions (RH>90%).

Random positioning machine (RPM) as a ground based microgravity simulating platform was designed, fabricated and validated. Experiments using biological samples proved that the achieved microgravity levels (10-3g) significantly influenced many biological parameters and the results were also compared with data from spaceflight studies. The developed RPM can be effectively utilized for the ground based optimization of spaceflight experiments. (currently under patent filing: KG Sreejalekshmi and Srujana Juratagi)

The paper titled “Development of Process Parameters and Tool Path Strategies for Laser Powder Directed Energy Deposition of Axisymmetric Components”, authored by Akhil A I (IIST), V S Sooraj (IIST), Anilkumar V (VSSC), Pradeep P I(VSSC), Apurba Roy (VSSC) was conferred the best paper award under the category of “Innovative Applications of Additive Manufacturing” Mr. Akhil A I, research scholar from Department of Aerospace, presented the research in International Conference on Precision, Meso, Micro and Nano Engineering (COPEN), 2024, under the sub-theme of Aerospace/Space Manufacturing.

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