Achievements & Indigenous Innovations
Dr. M. Jayaprakasan has designed and fabricated more than 13 advanced equipment, devices, and gadgets under the “Make in India” initiative. These are widely adopted by India’s premier research institutions and universities.
Major Users:
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- National Physical Laboratory (NPL), New Delhi
- Indira Gandhi Centre for Atomic Research (IGCAR), Kalpakkam
- College of Engineering, Guindy, Anna University, Chennai
- Bharathidasan University, Trichy
- Alagappa University, Karaikudi
- Madurai Kamaraj University, Madurai
- SSN College of Engineering, SRM Institute of Science and Technology, and many engineering colleges across the country.
Major Advantages:
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- Low cost and high resolution—often superior to imported counterparts
- Import substitute: Enables local labs to save crores of rupees
- Freely transferred technology: Designs shared with industry and academia to support research
- “Atmanirbhar Bharat”: Enabling self-reliance and innovation in Indian research labs
List of Key Indigenous Devices Developed:
1. Ultra Smooth, Nanoresolution Czeckralski Crystal Puller
Special care was taken in designing this puller to achieve ultra-smooth, vibration-free movement, using CNC-fabricated, high-precision components. This compact tabletop model integrates two high-torque stepper motors—one for translation/pulling and another for rotation—linked by a ball screw and timing belt for seamless linear motion. Microcontroller-based (Microchip dsPIC) electronics enable microstepping down to 1/2000 of a step, providing 10 nm linear resolution and 1 µm positional accuracy. User-friendly software allows precise control for crystal positioning, seeding, and growth—applicable to both Czeckralski and vertical Bridgman techniques.
2. Nanoresolution Translation Set for Bridgman Technique
A microcontroller-based, gearless translation system, operating in microstepping mode (1.8° divided by 2000, yielding 400,000 steps per rotation). Provides ultra-smooth, uniform speed and vibration-free movement, with a 40 nm linear translation per step.
3. Low Cost PC-based Automation for X-ray Diffractometer
Conventional X-ray diffractometers output spectra as hard-copy strip charts. This PC add-on card and software enable digital data acquisition and analysis for under $100, improving resolution five-fold. The system is user-friendly, automated, and runs on standard Windows PCs, enhancing accessibility for research labs.
4. Microcontroller-based Bi-directional Accelerated Seed Rotation Controller
For the solution growth method, this controller ensures homogeneous supersaturation via programmable stepper motor control. It provides control over rpm, direction, acceleration/hold/deceleration/off times, enabling 16 different forced convection wave profiles for crystal growth studies.
5. ARM Processor-based Intelligent Auto-tuning PID Temperature Controller
A dual-channel, digital PID temperature controller offering precise, fast, and stable temperature control for crystal growth. Built on ARM microcontroller architecture, its software (written in C using KEIL tools) covers operator interface, PID/autotune, RAMP/Soak, and RS232C-based data logging. This innovation matches commercial PID controllers at a fraction of the cost.
6. Dual Channel Microcontroller-based PID Temperature Controller
Utilizing Analog Devices ADuC-841, this RTD-based controller achieves ±0.1°C accuracy over 20–100°C, with built-in ADC/DAC and RS232C interface—optimized for solution crystal growth.
7. Thermocouple-based Temperature Data Logger
Based on Analog Devices ADuC-845 (24-bit Sigma-Delta ADC), this logger interfaces directly with thermocouples to log detailed furnace temperature profiles during crystal growth, with data saved to USB flash drive or hard disk via RS232C.
8. MODBUS Protocol for Embedded Controllers
MODBUS RTU slave protocol implemented on 8×51 microcontrollers enables custom temperature/motor controllers to interface with SCADA systems (supports function codes 0x01–0x17, RS232C, and RS-485).
9. USB Slave Device Interface for Data Acquisition
A general-purpose, low-cost USB data acquisition system, based on Cypress CY7C63013A, with I2C ADC/DAC and digital I/O. Easily programmable using Visual Basic or C/C++.
10. Embedded USB Host Protocol & Printer Interface
Enables remote data logging to USB flash/hard disks and supports ASCII printer output. Based on Cypress EZ-Host (CY7C67300), includes an LCD, keypad, and RS232C interface.
11. USB–TMC (Test & Measurement Control) Protocol
A multifunctional data acquisition system utilizing Xilinx FPGA and Cypress CY7C68013A with USB–TMC protocol, enabling fast, parallel instrument control supported by leading virtual instrument software.
12. Programmable System On Chip (PSoC) based Nano Stepping Motor Controller System.
13. IoT based bio-sensor for milk toxins detection.
Patent Innovation
A PROCESS TO CHARACTERIZE BIOCHEMICAL REACTIONS USING SENSOR INSTRUMENTATION BASED ON CAPACITANCE AND CONDUCTANCE CHANGE
Patent No: 282117 Date of Grant: 30/03/2017
Inventors: J. Kumar, K. Sankaran, T. Dhineshkumar, M. Jayaprakasan
This patent is applied in devices for estimating milk quality (lactose, fat, urea, etc.) at collection centers and processing units. Originally designed for reagent-less blood sample analysis, it is a high-precision auto-range capacitance meter (microfarad to picofarad range). Awarded the “Best Innovation Award 2015” by UGC.
Books Authored & Educational Leadership
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- Dr. M. Jayaprakasan served as Team Leader/Convenor for the core IT & ITeS Sector group at the Directorate General of Training, Ministry of Skill Development & Entrepreneurship (MSDE), Government of India.
- He led the revision and introduction of new courses under CTS, CITS, and MES, and contributed as chief author/editor to 14+ Written Instructional Materials published by the National Instructional Media Institute (NIMI) and used by all ITIs across India.
List of Books Developed in the IT & ITES Sector
| S. No. | Title | Language | Price (Rs) | ISBN |
|---|---|---|---|---|
| 1 | COPA – Trade Practical – First Semester (NCVT Jun 2014) | English | 325 | 978-93-82992-20-2 |
| 2 | COPA – Trade Theory – First Semester (NCVT Jun 2014) | English | 220 | 978-93-82992-21-9 |
| 3 | COPA – Trade Practical – Second Semester (NCVT Jun 2015) | English | 220 | 978-93-82992-71-4 |
| 4 | COPA – Trade Theory – Second Semester (NCVT Jun 2015) | English | 170 | 978-93-82992-72-1 |
| 5 | DTPO – Trade Practical – First Semester (NCVT Jun 2014) | English | 250 | 978-93-82992-18-9 |
| 6 | DTPO – Trade Theory – First Semester (NCVT Jun 2014) | English | 180 | 978-93-82992-19-6 |
| 7 | DTPO – Trade Practical – Second Semester (NCVT Jun 2014) | English | 295 | |
| 8 | DTPO – Trade Theory – Second Semester (NCVT Jun 2014) | English | 230 | |
| 9 | ICTSM – Trade Practical – First Semester (NCVT Jun 2014) | English | 230 | 978-93-82992-16-5 |
| 10 | ICTSM – Trade Theory – First Semester (NCVT Jun 2014) | English | 320 | 978-93-82992-17-2 |
| 11 | ICTSM – Trade Practical – Second Semester (NCVT Jun 2015) | English | 290 | 978-93-82992-69-1 |
| 12 | ICTSM – Trade Theory – Second Semester (NCVT Jun 2015) | English | 230 | 978-93-82992-70-7 |
| 13 | ICTSM – Trade Practical – Third Semester (NCVT Jun 2014) | English | 175 | |
| 14 | ICTSM – Trade Theory – Third Semester (NCVT Jun 2014) | English | 230 | |
| 15 | ICTSM – Trade Practical – Fourth Semester (NCVT Jun 2014) | English | * | |
| 16 | ICTSM – Trade Theory – Fourth Semester (NCVT Jun 2014) | English | * |
Highlights
All books are official NCVT curriculum materials for the ITI & ITeS sector.
Adopted in all ITIs across India, benefiting lakhs of students.
Published and distributed by National Instructional Media Institute (NIMI), MSDE.