1975
1975
Contents  
PageNo.
 
DIVISION OF STANDARDS
1. Standards     2-12
1.1 Length Standards     2-3
1.2 Mass Standards     3
1 .3 Photometric and Radiometric Standards     4
1.4 Temperature standards     4-5
1.6 Low Pressure and High Pressure Standards     5-6
1.5 Force Standard     6
1.7 Acoustical Standards     6-8
1.8 Time and Frequency Standards     8-9
1.9 Electrical and Electronic Standards     10-12
1.9.1 Standards of DC voltage and Resistance     10
1.9.2. Realization of the Unit of DC Voltage B through Josephson Effect.     10-11
1.9.3 AC & High Frequency Standards     11
1.9.4 Microwave Standards     12
2. Calibration & Testing
2.1 Length Metrology     13
2.2 Mass, Volume, and Hydrometers     14
2.3 Photometry, Colorimetry and Radiometry     14
2.4 Heat     14-15
2.5 Engineering Materials     15
2.6 Low Pressure and High Pressure     15-17
2.7 Acoustics     17
2.8 DC Calibration     18
2.9 AC & High Frequency Calibration     18
2.10 Microwave Calibration & Testing     18
2.11 Test, evaluation and Calibration Centre     19-20
Table- Statement of Receipts on account of Calibration and Testing Work done by the Division of Standards during 1975-77    
DIVISION OF SPECIALIZED TECHNIQUES
1. Specialised Techniques Group     21-36
1.1 Analytical Chemistry Section     22-23
1.2 Spectro-Chemical Analysis Section     23-24
l.3 Infrared Section     24-26
1.4 X-ray Diffraction and Fluorescence Section     26-27
1.5 Electron Microscopy and Electron Diffraction Section     27-28
1.6 X-ray Diffraction Topography Section     28-30
1.7 Electron Paramagnetic Resonance Section     30-31
1.8 Mossbauer Spectroscopy     31-32
1.9 Sulfamphthalein indicators     32-33
1.10 Electronics Service Unit     34-36
2. Cryogenics Group
2.1 Cryo Technical Services     36
2.2 Cryo-Properties of Materials     37
2.3 Cryogenic Plants and Facilities     37
2.4 Cryo-probes for Medical Applications     37-39
2.5 Cryo-chemical Techniques for Small Powder Preparation     39-40
2.6 Superconducting Materials and Systems     40-41
2.7 Theoretical Investigations in Low Temperature Physics     41-42
2.8 Josephson Tunnelling     42
3. Solar Energy Group
Table-III Receipts from the Testing Work done by the Division of Specialised Techniques     46
DIVISION OF MATERIALS
1. Semiconductor Materials and Devices     47-48
1.1 Silicon Technology     47-48
1.2 Luminescent Materials and Devices     48
2. Magnetic Materials     48-49
2.1 Soft Ferrites     49
2.2 Special Ferrites     49
3. Piezoelectric & Dielectric Materials and Devices
3. l Piezoelectric Materials     50
3-2 High Voltage Ceramic Capacitors     50-51
Table III-Technical Specifications of MKD-I type High Voltage Ceramic Capacitors (K ~ 1800)     51
3.3 Technical Ceramics     51-52
3.4 Ultrasonic Instrumentation & Piezoelectric Devices     52-53
4. Carbon Products
4.1 Carbon Fibres     53-54
4.2 Arc Carbons     55
4.3 Midget Electrodes     55
4.4 Electrographitized Grades of Brushes     55-56
4,5 Carbon Mixes     56
4.6 Carbon Thrust Bearings     56
DIVISION OF RADIO SCIENCE
1. Groundwater Facilities for Environment Monitoring     57-60
2. Rocket and Satellite Experiments     60-62
3. Radio and Space Services     63-64
4. Aeronomy     64-66
5. Environmental Hazards     67-68
DEVELOPMENTAL PROJECTS
1. Microwaves and Display Tube Technology     69-71
1.1 Design. Development and Batch-production or Microwave Components, Circuits and Instruments     70
1.2 Fabrication & Reconditioning of TV Picture Tubes and Special Purpose Cathode Ray Tubes     71
1.3 3-D Photographic Displays     71-73
2. Electrophotographic Machines     73-74
3. Thin Film Devices     74--76
4. Liquid Crystal Devices     76-75
4.1 Electro-optical Display Devices     75-76
4.2 Light Crystal Light Valves     76
EXPERIMENTAL PILOT PLANTS
1. Pilot & Demonstration Plant in Hydrostatic Extrusion & Material Synthesis     77-80
2. Glass Technology development and Production Unit     80-81
3. Developmental-Cum-Production of Electronic Components Unit     82
4. Carbon Pilot Plant     83
OTHER R & D Activities
1. Design and Development of Optical Systems     84
2. Instrumentation Services     85
3. Sensory Aids for the Blind     85
APPENDICES
 
Silver Jubilee Celebrations 86-90
National Symposium on Earth's Near Space Environment 86-90
National Seminar on Cryogenics and its Applications 91
National Conference on Crystallography 91
Central Workshop 92-93
Library 94-97
Krishnan Memorial Lecture-1975 98
NPL Merit Awards-1975 99
Papers Published 101-102
Papers Presented at Symposia, Seminars & Conferences 102-104
Indian Patents Filed (during 1975) 105-111
Indian Patents Accepted (during 1975) 112-122
Indian Patents Sealed (during 1975) 123-124
Processes Released for Commercialisation (during 1975) 125-126
Processes which have gone into Production (during 1975) 127
Representation on ISI Committees 128-129
Executive Committee (As on 31st December, 1975) 130-131
Receipts on account of Fabrication, Supply and Servicing of Instruments etc. during 1975-76 132-139
Servicing of Instruments etc. during 1975-76 132-139
Staff strength (as on lst June 1975) 140
Expenditure ( 1975-76) 141

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