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This monthly e-newsletter, written by the editors of Sensors & Transducers Magazine (ISSN 1726-5479), delivers the product and research news you asked for, and updates you on happenings in the sensor science and industry. Who should read this Newsletter ? All who are interested in the newest information and trends in sensors, transducers, MEMS and sensor instrumentation, including DAQ.


IFSA Newsletter (ISSN 1726-6017), No.10 October 2007

Sponsored Links:


Bullet In this Issue:


1.   Sensors & Transducers Magazine (e-Digest), No.10, October 2007

2.   Sensors & Transducers Journal (ISSN 1726- 5479), Special Issue (October 2007) on 'MEMS and NEMS: Devices and Systems

3.   Sensors Web Portal Up-dates Briefs

4  Recently Published Sensors Books

5.   Position and Displacement Sensors Markets: Optical Encoder Growth Slower, New Technologies Emerge

6.   Conference sponsored by IFSA.

7.   Subscribtion

8.   Additional Information, Comments, Suggestions


Plus lots more information to be found on Sensors Web Portal: http://www.sensorsportal.com



Bullet Sensors & Transducers Journal (e-Digest), Vol. 84, No. 10, October 2007




1. Programmable Solution for Solving Non-linearity Characteristics of Smart Sensor Applications

   by S. Khan, I. Adam, Zahirul Alam, K. F. Mohd Suhut and N. Yusof, Pages 1580-1589


2. Modeling of the Response of a Hot-Wire Anemometer with Neural Nets under Various Air Densities

    by A. Al-Salaymeh and M. S. Ashhab, Pages 1590-1606


3. A Genetic Algorithm for Optimization in Conceptual Design Phase of Robots

    by Amir Jafari, Mohsen Safavi, Alireza Fadaei, Pages 1607-1618


4. Uncertainty Analysis of Temperature Measurement System Using Interval Arithmetic

    by B. Vasuki, M. Umapathy, S. Akhilan, Pages 1619-1624


5. A Low-Power Signal Processing Unit for in vivo Monitoring and Transmission of Sensor Signals

    by M. R. Haider, S. K. Islam and M. Zhang, Pages 1625-1632


6. A Comparative Study of Fiber Optic Humidity Sensors Based on Chitosan and Agarose

    by Jinesh Mathew, K. J. Thomas, V. P. N. Nampoori and P. Radhakrishnan, Pages 1633-1640


7. Mechanical Behavior of a Thermal Micromirror Based on a Bimetallic Cantilever Beam

   by Ghader Rezazadeh, Maliheh Pashapour, Leila Borghei, Pages 1641-1650


8. Transformer Temperature Measurment Using Optical Fiber Based Microbend Sensor

    by Deepika Yadav and A. K. Nadir, Pages 1651-1659


9. MEMS Tunneling Micro Thermometer Based onTip Deflection of Bimetallic Cantilever Beam

    by Samrand K. Nezhadian, *Ghader Rezazadeh, Shahram Kh. Arya, Pages 1660-1668


10.A PC Based Level Indicating Controller Using a Hall Probe Sensor

    by S. C. Bera, B. Chakraborty and D. N. Kole, Pages 1669-1676


11.Model Based controller Design for a Shell and Tube Heat Exchanger

     by S. Nithya, Abhay Singh Gour, N. Sivakumaran, T. K. Radhakrishnan and N. Anantharaman, Pages 1677-1686




Sensors & Transducers Journal's cover


The deadline for articles, press releases and sponsored White Papers for the next  issue of S&T Journal (e-Digest) No.11, Vol.85, November 2007 is 12 November 2007. You can submit your article or press release online. For more information and instructions of preparation click <here>.


Bullet Sensors & Transducers Journal (ISSN 1726- 5479), Special Issue, October 2007


'MEMS & NEMS: Devices and Systems' - Selected Papers From the 10th Annual NSTI Nanotech Conference,

Santa Clara Convention Center, Santa Clara, California, USA, 20-24 May 2007

Edited by Elena Gaura and James P. Brusey




1. Foreword
    Elena Gaura and James P. Brusey, Page I

    [Abstract and Full Text Article Download]


2. Nano-Structure or Nano-Systems: Opportunities and Pitfalls
    P. J. French and C.-K. Yang, Pages 1-9

    [Abstract and Full Text Article Download]


3. New Trends on MEMS Sensor Technology for Harsh Environment Applications
    Patricia M. Nieva, Pages 10-20

    [Abstract and Full Text Article Download]


4. Healthcare for the Healthy People: Miniaturization, Sensing and Actuation Trends and Needs in

    Preventive and Predictive Medicine
    Alberto Sanna, Marco Nalin, Riccardo Serafin, Pages 21-29

    [Abstract and Full Text Article Download]


5. Global Environmental Micro Sensors Test Operations in the Natural Environment (GEMSTONE)
    Mark Adams, John Manobianco and Matthew Buza, Pages 30-41

    [Abstract and Full Text Article Download]


6. Frequency Domain Modeling of SAW Devices for Aerospace Sensors
    William Wilson, Gary Atkinson, Pages 42-50

    [Abstract and Full Text Article Download]


7. Development of Materials and Sensors for the U.S. Army’s Active Coatings Technology Program
    James L. Zunino III, Pages 51-59

    [Abstract and Full Text Article Download]


8. Microfabrication and Characterization of an Integrated 3-Axis CMOS-MEMS Accelerometer
    Hongwei Qu, Deyou Fang and Huikai Xie, Pages 60-67

    [Abstract and Full Text Article Download]


9. Characterization and Optimization Design of the Polymer-based Capacitive Micro-arrayed Ultrasonic

    De-Yi Chiou, Mu-Yueh Chen, Hsu-Cheng Deng, Ming-Wei Chang, Pages 68-75

    [Abstract and Full Text Article Download]


10.Fabry-Perot Diaphragm Fiber Optic Sensor (DFOS) for Acoustic Detection
    Yan Sun, Guanhua Feng, George Georgiou, Edip Niver, Karen Noe and Ken Chin, Pages 76-83

    [Abstract and Full Text Article Download]


11.Micromechanical GaAs Hot Plates for Gas Sensors
    Jiri Jakovenko, Miroslav Husak, Tibor Lalinky, Milan Drzik, Pages 84-92

    [Abstract and Full Text Article Download]


12.Integration of Microfluidics and Microacoustics Components for Miniature Flow Cytometry Systems
     Surendra K. Ravula, Darren W. Branch, Jennifer Sigman, Paul G. Clem, Igal Brener, Pages 93-100

     [Abstract and Full Text Article Download]


13.Design and Characterization of MEMS Thermal Converter
     Jiri Jakovenko, Miroslav Husak, Tibor Lalinky, Pages 101-110

     [Abstract and Full Text Article Download]


14.Fabrication of a Real Time Reactive Ion Etching Resonant Sensor Using a Low Temperature Sacrificial

    Bryan G. Morris, Paul J. Joseph and Gary S. May, Pages 111-123

    [Abstract and Full Text Article Download]


15.Perturbation Stochastic Finite Element Analysis of Thermoelastic Quality Factor of Micro-Resonators
    Séverine Lepage and Jean-Claude Golinval, Pages 124-130

    [Abstract and Full Text Article Download]


16.A Semi-Analytical Model for Calculating Touch-Point Pressure and Pull-in Voltage for Clamped

     Diaphragms with Residual Stress
     Anurekha Sharma and P. J. George, Pages 131-139

     [Abstract and Full Text Article Download]


17.The Development of Chemical Nanosensors
     A. J. Jin, J. Li, Y. Lu, Pages 140-146

     [Abstract and Full Text Article Download]


Sensors & Transducers Journal's cover


Bullet Sensors Web Portal Up-Date Briefs



  • New issue of Sensors & Transducers e-Digest, Vol.84, Issue 10, October 2007 is in the DIGEST section with products news

  • Special Issue of Sensors & Transducers Journal (ISSN 1726- 5479) on MEMS & NEMS: Devices and Systems - selected papers from the 10th Annual NSTI Nanotech Conference

  • Smart CMOS Image Sensors and Applications - recently published book provides a firm foundation in existing smart CMOS image sensor technology and applications

  • Algorithms for Sensor and Ad Hoc Networks - new published monograph with the first overview of algorithmic results on wireless ad hoc and sensor networks


Bullet New Published Sensors Books


Smart CMOS Image Sensors and Applications

by Jun Ohta


 Algorithms for Sensor and Ad Hoc Networks: Advanced Lectures

by Dorothea Wagner and Roger Wattenhofer


Smart CMOS Image Sensors

Publisher: CRC

Hardcover: 272 pages

Pubdate: 13 September 2007

ISBN: 0849336813


More details ...

Book's cover

Publisher: Springer-Verlag Berlin and Heidelberg GmbH & Co.K

Paperback: 415 pages

Pubdate: September 2007

ISBN: 354074990X


More details ...



For more sensors and MEMS related books please visit our Online Bookstore



Bullet Position and Displacement Sensors Markets:

     Optical Encoder Growth Slower, New Technologies Emerge



Natick, Massachusetts – October 11, 2007 – A recent market study by Venture Development Corporation (VDC) reveals that the North American market for linear displacement sensors including encoders, linear variable differential transformers (LVDTs), laser systems, magnetostrictive, potentiometric, capacitive, inductive, and ultrasonic products totaled $338.7 million in 2006. Displacements are occurring in many applications, as evidenced by the varying and changing growth rates for all primary technologies.


LVDTs – The largest product market is for LVDTs, and by far the largest shipments of these are for military/aerospace applications, particularly for use on aircraft. These have a long operating life in harsh environments. LVDTs have only one moving part and little friction between the moving ferromagnetic core and the cylinder in which it moves.


The North American LVDT market peaked out in 1999 and then slumped off in the 2000 and 2001 time frame, but has been recovering since, and is expected to continue growing over the next 5 years.


Displacement sensors market


 On the military side, defense projects have been strong since the beginning of the Iraq War, and this is expected to continue, and sustain market growth for LVDTs.


Optical Encoders – From 1994 through 2006, the North American optical linear encoder market grew at about a 10.5% compound annual growth rate (CAGR). These are used principally in industrial applications on metalworking equipment, electronics and semiconductor manufacturing equipment, and assembly/robotics equipment, but also find other uses such as on medical equipment. Optical encoders can provide high accuracy, and being digital output products require no A/D conversions for use in digital control systems. The growth rate for these products is expected to slow over the next five years, but to remain above average. The highest growth rate is forecast for use on elevators.


Magnetostrictive – The North American market for magnetostrictive linear displacement sensors increased at just over a 5% CAGR between 1994 and 2006. These sensors find extensive use with pneumatic and hydraulic cylinders, and are particularly useful for long strokes. These provide high resolution, and repeatability.


The overall North American market for these products is expected to grow at an above-average rate over the next five years, with the highest growth rate expectations for use in metalworking, medical, assembly/robotics equipment, and valve applications.


Potentiometric – In contrast, the North American market for linear potentiometric displacement sensors declined at about 5.3% per year over the last 12 years.


The cost, and thus price, of linear displacement measurement potentiometers vary considerably, being among other things a function of volume, length, linearity and accuracy. For example, linear potentiometric sensors are most heavily used as components in transportation vehicles for pedal positions, power seats positioning, and power steering. Typically these products are relatively short displacement devices, with low linearity and accuracy requirements. The material cost to produce these is low, and because these are purchased in large volumes for use on automotive vehicles, the resultant price is low. This market segment has shown very little decline over the last 12 years, particularly as more position sensors have been added to automotive vehicles for a variety of functions.


In other applications, particularly military and industrial, often high linearity and accuracy are required, and often these are much longer products, and purchased in much lower volumes. Prices on these products are considerably higher. The most displacement of linear potentiometric sensors has occurred in these segments, particularly in industrial applications. For example, between 1994 and 2006, the North American packaging equipment market for these sensors declined about 90%, that for industrial engine controls by 70%, for metalworking equipment by 58%, for plastics and rubber manufacturing equipment by 50%, and for medical equipment by 39%.


Potentiometric linear displacement sensors are contact devices, and have a relatively short operating life because of wear caused by friction compared to other types of linear displacement sensors. Expectations are for continuing loss of market share for these products.


High Growth Product Markets – The highest growth rates forecast in the VDC study are for laser systems at a 10.2% CAGR, and capacitive linear displacement sensors at 8.0%. The markets for both are currently relatively small, however, each is expected to grow since OEMs and end users are seeking higher accuracies, which these provide. This is particularly the case in the semiconductor and electronic industries where more precise measurement capabilities enable shrinking the size of electronics.


Where will the market be in five years? Optical linear encoders have enjoyed a strong ride to toward the top, but the market for the two above categories, and a few other technologies, are forecast to have higher growth rates.



For further information about the study, North American Position Sensor Market: Eighth Edition, contact:


Jim Taylor,

Director, Industrial Automation and Control Practice,

Tel.: 508.653.9000 ext. 121, E-mail: jimt@vdc-corp.com


To purchase any of these or other VDC reports, contact:


Tim Callahan,

Sales Manager,

508.653.9000 ext. 113,

E-mail: timc@vdc-corp.com

Tim Shea,

Sales Manager,

Tel.: 508.653.9000 ext. 119,

E-mail: tims@vdc-corp.com



Bullet 3rd Global Plastic Electronics Conference and Showcase

     29-30 October 2007 Sheraton Frankfurt Hotel and Towers, Frankfurt, Germany



IFSA members save 15% ! Call us on +44 (0)1372 802101 and quote IFSA to claim your discount.



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