Seismic qualification and vibration test

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Machine Dynamics Laboratory

Equipment , Academic Facilities

This image was created by digitising a negative in the collection provided by Mr. C. Gourishankar's family. The negative was in an envelope containing photographs of equipment and instruments used for vibration experiments in the Machine Dynamics Laboratory of the Applied Mechanics Department.

This photograph details a seismic qualification and vibration test on a bus bar duct on a low frequency isolation bed. The frequency isolation bed may still be available in the Aerospace Building. Most of the equipment in this image are B&K (Brüel & Kjær) vibration and sound measuring equipment such as a beat frequency oscillator and German HB preamplifiers.

Similar photographs (IDs 001/0272/IMG_0222 and 001/0272/IMG_0223) have also been found in the same album.

The Heritage Centre thanks Prof. S. Narayanan (Department of Applied Mechanics) for the information provided.

Collection:

Gourishankar Collection

Album Name:

Machine Dynamics Laboratory

Photograph ID:

001/0272/IMG_0225

Album ID:

0272

Date:

25 August 1970

Photographer:

C. Gourishankar. A geologist by qualification, Gourishankar started his career as a photographer after working for many years with the Geological Survey of India. In everything that he did, Gourishankar strove to achieve flawlessness and impeccable quality. Thus his photography too was characterised by this drive for perfection. Every photograph that Gourishankar took was meticulously planned and shot, and printed with diligence and patience. Gourishankar carried out most of the official photography at IIT Madras in the 1960s.