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Design and development of PC based system for performance evaluation of safety masks and air filter

Design and development of PC based system for performance evaluation of safety masks and air filter media using paraffin oil aerosol
G. D. Patil, S. H. Thopte, M. T. Mahadik

The details of system design has been conceptualized and worked out. Some of the instrumentation items and components required have been procured. The main part of system is aerosol concentration measuring unit, costing about Rs.3.5 lakhs. However, UGC approved only Rs.1.75 lakhs for the same. As the official quotation for aerosol concentration measuring instrument received from M/s. TSI USA, indicate the cost of Rs.2.6 lakhs. It was not possible to purchase this instrument from the approved grant of Rs. 1.75 lakhs. We have written to UGC to enhance the grant to Rs.2.6 lakhs but so far we have not received any reply. Aerosol concentration measurement is the heart of the system.

Design and Development of Microcontroller based Continuous Passive Motion (CPM) Machine for Performa

Design and Development of Microcontroller based Continuous Passive Motion (CPM) Machine for Performance Evaluation of Physically Handicapped Person.
K.K. Mahajan, N.G. Patil

The first prototype instrument was designed with AC motor and external gear arrangement. Although this prototype machine worked as per our requirements, it was bulky and was too big in size. Hence the design was modified by using a DC motor & clubbed gear assembly.

An automatic & manual angle position control mechanism to control the angle in up-down position between 30° & 90° along with a start / stop mechanism has been now incorporated to suit the patient’s requirements. A speed control mechanism for controlling the slow & fast movements of the machine is also added.

An Electromyogram (EMG) amplifier for measurement of abnormality / normality of the patient has been designed to test the condition of patient before and after the treatment through this CPM machine. A microcontroller 8051 along with a LCD display is used to record the percentage movement of the patient’s limb, the time taken, no. of up-down cycles and EMG activity.

Optimized Drying of Fruits and Vegetables by using Infrared Source

Optimized Drying of Fruits and Vegetables by using Infrared Source. – N. N. Rao, Sunita Batra, P. C. Badekar, Devendra Gunde

The specifications of the instrumentation system have been finalized and procurement of components has been completed. The electronic control unit is being developed.

Prototype design of drying chamber completed. Design Customized Control System to control IR heating and heater assembly completed.

Block Diagram of Optimized drying of Fruits and Vegetable by using Infrared source


Testing the electronic control unit		IR lamps under test

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