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By:

Rajendra Joshi

3 December 2024 at 3:50:26 am

Proud moment for Shivaji University researchers

Indian patent for portable sound absorption testing device Kolhapur: Researchers from Shivaji University, Kolhapur, have developed a portable sound absorption testing device that can scientifically assess whether an installed sound system and its acoustic treatment are functioning effectively. The innovation has been granted an Indian patent, marking a first-of-its-kind development in this field, the university said on Thursday. The patented device, named the Portable Sound Absorption Tester,...

Proud moment for Shivaji University researchers

Indian patent for portable sound absorption testing device Kolhapur: Researchers from Shivaji University, Kolhapur, have developed a portable sound absorption testing device that can scientifically assess whether an installed sound system and its acoustic treatment are functioning effectively. The innovation has been granted an Indian patent, marking a first-of-its-kind development in this field, the university said on Thursday. The patented device, named the Portable Sound Absorption Tester, has been developed by senior chemist Dr Kalyanrao Garadkar of Shivaji University, along with Dr Sandeep Sable and Dr Rohant Dhabbe of Jaysingpur College, and Dr Chandrala Jatkar of the D K T E Society’s Textile and Engineering Institute, Ichalkaranji. The device is designed to test the sound absorption capacity of professional acoustic systems used in recording studios, theatres, auditoriums and soundproof chambers. Until now, the effectiveness of such sound-absorbing installations has largely been assessed through experience and trial-and-error after installation. The newly developed portable tester allows for immediate and scientific evaluation of sound absorption performance once the system is installed. Sound-absorbing sheets and panels are widely used in theatres, studios and vocal recording rooms to absorb echo around microphones and create a controlled acoustic environment, enabling cleaner and more professional audio output. The new device can be used to evaluate a wide range of absorbers, including perforated foam, fibre, fabric, membranes, panels and resonant absorbers, helping improve the quality and effectiveness of acoustic materials. Explaining the working of the device, Dr Garadkar said that the human audible frequency range extends from 20 Hz to 20 kHz. The device generates sound waves within this spectrum and projects them onto the acoustic material under test. The sound waves that are not absorbed are detected by a microphone and displayed on the screen in the form of current or voltage readings. This enables users to instantly determine whether the sound absorption system is functioning as intended and make corrective interventions if required. The researchers said the device would also be useful for those engaged in acoustic fabrication and sound absorption research. Apart from being portable and easy to transport, the device is also cost-effective, making it suitable for field applications. The team expressed confidence that it would prove highly useful in the sound system testing sector. Shivaji University’s in-charge Vice-Chancellor Dr Suresh Gosavi and in-charge Pro Vice-Chancellor Dr Jyoti Jadhav congratulated the research team on securing the patent.

Navy doc treat injured Pakistani crew

Mumbai: In a humanitarian gesture, the Indian Navy (IN) rendered lifesaving medical assistance to save the life of a Pakistani crewman on an Iranian fishing vessel in the Arabian Sea, officials said.


The operation took place on Friday/Saturday around 350 nautical miles in the high seas off Oman coast, with the help of the stealth frigate INS Trikand.


On April 4, the INS Trikand monitored a distress call from the Omani vessel 'Al Omeedi' seeking help for a crew member, who was seriously injured with multiple fractures and blood loss.


Further enquiry revealed that the distressed crewman was working on the vessel's engine when he sustained the grievous injuries and was transferred to another Iran-bound dhow, 'FV Abdul Rehman Hanzia', in the vicinity.

On getting the SOS, INS Trikand immediately altered her course to rush medical assistance to the injured crew.


The 'FV Abdul Rehman Hanzia' has a contingent of 11 Pakistanis and 5 Iranians manning the vessel.


The Indian warship's medical officer along with a team of Marine Commandos boarded the FV.


Ob board, the MO started the three hour long medical procedures, controlling the blood flow, suturing and splinting of the crew's injured fingers.

It was a timely response which prevented the patient's total loss of the injured fingers due to gangrene.


The IN stealth warship also provided crucial medical supplies, antibiotics to the FV to ensure the injured crew's wellbeing till the dhow reaches Iran.


The entire crew of the dhow expressed their gratitude to the IN for rendering assistance on time that helped saving their injured mate's life, said the IN officials.

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