bullet On-line Magazine 'Sensors & Transducers' (S&T e-Digest)

    (ISSN 1726- 5479)



No. 7, July 2003



Table of Contents





Smartec Expands its e-Commerce Possibilities with Sensors Web Portal


Sensors Web Portal Inc., worldwide leading content provider in sensors, transducers and sensor instrumentation area and Smartec, one of the oldest high tech company in the Netherlands, have signed a long-term agreement.


July, 2003, TORONTO, ON - Sensors Web Portal Inc., worldwide leading content provider in sensors, transducers and sensor instrumentation area and Smartec (http://www.smartec.nl), one of the oldest high technology company in the Netherlands, leading supplier of smart sensors and system solutions have signed a long-term agreement under which Smartec's products will be sold in the first B2B and B2C sensors e-Shop at sensors web portal (http://www.sensorsportal.com). The agreement covers all Smartec's product ranges from different sensors (temperature, pressure, humidity, infrared) and Universal Transducer Interface (UTI) IC up to data acquisition systems and development kits:  http://www.sensorsportal.com/HTML/E-SHOP/e-shop_4.htm


"Expanding the e-commerce possibilities is a part of Smartec's strategy to further develop its position as a leading manufacturer of smart sensors products," said Rolf de Boer, managing director of Smartec BV. "We were the first client at Sensors Web Portal Inc. for banners ads, when portal's has been started its activity in 1999 and we are still using this service during four years. Every day, as has shown our web site statistics, we have new visitors, coming from this biggest Internet recourse. At the beginning of 2003, Sensors Web Portal Inc. had opened the first sensor e-Shop in the Net and Smartec was again among its first clients. After some months we have started to receive leads, generated by this e-Shop. Nevertheless we have sales network distributing in 22 countries and supplying Agilent, Nokia, Sanmina, Ericsson, Philips and many other companies, e-commerce is considered as very promised and priority business direction", - added Mr. Boer.


"In scales of all world, the Internet - traffic is increasing according to the exponential law, and, despite of all problems in computer and telecommunication markets, this tendency does not varied from year to year. In 2005 - 2006 the number of Internet users necessarily will reach one billion. In spite of the fact that a lot of "dot - com" have failed, business of many companies is strongly connected with the Internet for a long time. In 2005-2006 years the volume of world e-commerce, according to Intel will reach $ US 10 billion. It is much higher than today's rates" - said Mr. Sergey Yurish, SWP Vice President. "And now we give to the sensor companies a good start in e-commerce with quick results at low expanses. Vertical specialized Sensors Web Portal is the best environment for selling on-line" - added Mr. Yurish.


Please click <here> to download full version of this press release in pdf-format.


Mr. Igor L. Myshkin

SWP Generat Manager,

Sensors Web Portal, Inc.

46 Thorny Vineway,

M2J 4J2, Toronto, ON, Canada

Smartec Showcase





Field Detachable Cable Maximizes Adaptability of Miniature

Pressure Transducer Family


San Juan Capistrano, Calif. – Calif. – July 3, 2003 – Endevco’s 8510/8530 family of miniature pressure transducers now supports a four pin detachable cable. This configuration is ideal for those applications where the transducer has to be removed and re-installed repeatedly. These sensors feature a 3.8mm face diameter, 10-32 mounting thread, and are available in ranges from 15 through 2,000psi. They provide superior dynamic pressure measurement for aerospace, automotive and industrial applications that require small size, high sensitivity and wideband frequency response. To provide maximum sensitivity and wideband frequency response, these units integrate a four-arm strain gage bridge into a unique sculptured silicon diaphragm. A self-contained hybrid temperature compensation system provides stable performance over the temperature range of 0° F to 200° F (-18° C to +93° C), while maintaining high stability during temperature transients. They also feature excellent linearity to 3x range and high shock resistance.


Endevco Corporation

Tel: (949) 493-8181

E-mail: applications@endevco.com

8510/8530 pressure transducer



Small-Sized ICP Accelerometer


Depew, NY - The Vibration Division of PCB Piezotronics, Inc., has released a new Model 352B01 miniature ICP® accelerometer designed for performing shock testing and stress screening of printed circuit boards, disc drive mechanisms, cellular phones, PDAs, and other electronic items. The unit weighs a mere 0.7 grams, and occupies a small 0.32 x 0.24 inch (8x6 mm) footprint, for minimal mass loading of the test article. The sensor is structured with a shear mode, piezoceramic sensing element and provides a broad ± 5000 g measurement range, with frequency response from 1 to 20k Hz (± 10%). Additional features include a hermetically sealed titanium housing, 10,000 g shock limit, and a 10 ft. (3 m) integral cable.


Craig S. Aszkler,

Vibration Division of PCB Piezotronics, Inc.

Tel: 888-684-0013

Fax 716-685-3886

E-mail: vibration@pcb.com


352B01 miniature ICP accelerometer



Micronas Aligns Automotive and IC Life Cycles with New ActivePackage Concept

Freiburg, Germany
- Micronas, introduced ActivePackageTM, a new solution ridding the headache car manufacturers worldwide have shared for many years. During the life cycle of a car, several of the original integrated circuits (IC) that are designed in when the car is launched are made obsolete forcing car manufacturers to carry out expensive redesigns. By physically separating the digital logic element of a chip from the I/O and creating two chips within one package, the new ActivePackage concept solves this problem along with several other difficulties caused through short IC life cycles. With the ActivePackage approach, there will be two chips per IC package, the logic chip and the peripheral chip. This decoupling allows the core logic to be manufactured in the latest process technology. The programmable peripheral chip converts the core logic’s electrical parameters accordingly for the ActivePackage to communicate externally. This enables car manufacturers to design ICs into their cars with ”frozen“ electrical and mechanical parameters, saving time and money in the future.


“Up until now, car manufacturers have been forced to redesign a car’s electronic control unit as soon as the IC manufacturer made a product group obsolete,” said Klaus Heberle, vice president automotive at Micronas. “Besides being expensive, the car manufacturer has to go through a learning curve to maximize IC performance. This has proven to be a very serious problem for the adoption of electronics in cars. With ActivePackage, car manufacturers benefit from the progresses in process technology and can integrate chips with a greater level of performance while eliminating the need for redesign.“


At the same time chip manufacturers benefit greatly as they now require no special roadmaps for their automotive clients. The functional block can always be manufactured in the latest technology and integrated into the ActivePackage, while other characteristics remain unchanged - effectively solving the lifetime supply problem through adopting a platform approach. The ActivePackage approach guarantees not only that the electrical parameters remain constant over many generations, but also the pin-out and the mechanical characteristics of the package. The programmable peripheral chip takes care of that by acting as part of the IC package and providing it with a whole new quality - from which the ActivePackage derives its name.


Via a multiplex process, it is possible to reduce the number of internal connections and thereby decrease the relevant pad limit for the functional block considerably, providing another important advantage. Without additional circuitry, logic ICs manufactured in the latest process technology can be connected to a car’s electronic control unit via a peripheral chip. Up to now, it has been impossible to connect the latest controllers directly to the electrical system in the car because they could not operate with such high voltages. Car manufacturers now have the latest technologies at their disposal and without the pad limitation, new technologies offer considerable economic advantages. Additionally, interfaces remain the same over many generations, which also greatly reduce the design and development time and cost. Peripheral modules (Timer, UART, CAN) can be integrated on the peripheral ICs of the ActivePackage platforms. Besides cost and time savings, standardization also produces higher quality. Analog units (A/D converters, reset thresholds, oscillators, voltage regulators for complex ICs) that do not benefit from the progress of process technology can also be integrated on the peripheral chips. Due to the separation of the logic and the I/O section, car manufacturers also benefit from the progress made in digital technology while enjoying long-term stability through the programmable peripheral chip of the ActivePackage. The peripheral chips ensure reliable communications of the car’s electronic control units and are manufactured in the most cost-effective technology. As the demand for such chips will not dwindle in the near future, the required raw materials and production lines will also be available on a long-term basis.


Heinz Arnold

Positio Europe GmbH

Trautenwolfstr. 5

80802 Mьnchen

Tel. +49 (0)89/ 340834-16




Industrial Accelerometer Kits Survive Up To 900° F


Depew, NY - New industrial accelerometer kits from the IMI Sensors Division of PCB Piezotronics, Inc., monitor vibration levels of rotating machinery operating at elevated temperatures or in high-temp environments. Series 600 High-Temperature Industrial Charge Mode Accelerometer Kits include charge mode accelerometer, low-noise, hardline, Teflon, or armor jacketed cable, and signal conditioning. Accelerometers included in kits are hermetically sealed and designed to withstand temperatures to 900° F (482° C). Signal conditioning options include a differential charge amplifier for improved signal to noise ratio, resulting in 100 mV/g sensitivity. When the vibration of bearings, gears, and running speed is monitored, excessive wear can be identified and catastrophic failure or unscheduled downtime may be prevented.


Eric G. Yax, 

IMI SENSORS - A PCB Piezotronics Division

3425 Walden Avenue, Depew, New York 14043-2495 USA

Toll Free: 800-959-4464 

Fax: 716-684-3823

E-mail: imi@pcb.com

Accelerometer Kit



Through-Wall Vision Technology Promises a New Edge

for Security and Emergency Personnel


Cambridge Consultants Ltd (CCL) has successfully demonstrated a radical new type of radar technology that can ‘see through walls’. The low frequency radar has the ability to detect the location and movement of people inside buildings, or simply breathing beneath rubble. A unique detection technology can provide plan and elevation views of internal spaces, in a form which is optimized for portability. CCL now plans to turn its proof-of-concept demonstrator into products for military personnel and emergency services in situations such as sieges, urban warfare, fire and rescue. The technology stems from CCL’s pioneering work in developing anti-collision radar for automobile safety applications, which led the design and development company to devise a technique for sensing radar reflections that is extremely compact. As a result, a through-the-wall version of the system can be packaged in a battery-powered case that is around the size of a laptop computer.


“This radar delivers the kind of high-level location information that could really tip the balance in favour of rescuers in a broad range of time-critical situations, like the aftermath of an earthquake or explosion, or a hostage situation,” notes CCL Associate Director, Gordon Oswald.


Positioned against a wall - or even some meters away - the system transmits low frequency radar pulses that will pass through building materials up to 25 cm thick, and detect objects and movement in the internal space. The array of antenna sensors allows this ‘X-ray vision’ to not only sense objects in a horizontal plane, but in elevation, too, making it possible to deliver meaningful views of what is happening inside a room or under ground. In addition to creating a demonstration hardware unit, the technology consultancy has produced example software applications that display the data in user-friendly ways. These include plan and elevation views of internal spaces, using icons and colours to provide meaningful information on objects inside - showing whether they are static or moving, for example, and traces of movement. CCL’s through-wall radar system can be produced with a field of view of up to 120°, and a range of between 5 and 10 meters.


Claire Gale,

Marketing Communications,

Cambridge Consultants Ltd,

Science Park, Milton Road, Cambridge, CB4 0DW, UK,

Tel: +44 (0)1223 420024

E-mail: claire.gale@CambridgeConsultants.com

Through-Wall Vision System



Vibration Indicator with Alarm Set Points


Depew, NY - The Model 683A from IMI Sensors, a division of PCB Piezotronics, Inc., is a panel mount, digital vibration indicator with alarm. The device operates from AC or DC power, and provides excitation for ICP® accelerometers or 4-20 mA, loop-powered, vibration sensors. An LED display provides scaling and menu-driven setup of up to 4 set points, each with individual status indicators and relay outputs. An adjustable time delay eliminates false alarm trips due to momentary vibration upsets.


Eric G. Yax, 

IMI Sensors Division

3425 Walden Avenue, Depew, New York 14043-2495 USA

Toll Free: 800-959-4464 

E-mail: eyax@pcb.com

863A digital vibration indicator



Melexis Re-invents Programmable Linear Hall Sensor


Tessenderlo - Belgium - 7 July 2003 - In 1995, Melexis has kicked off a new era in the contactless (no wear out) position sensing by introducing the first monolithic programmable linear Hall sensor. By that time, alternate solutions for position sensing were based either on contacting resistive potentiometers or on complex contactless constructions (e.g. discrete Hall element combined with an interface IC and laser trimmed resistors for offset and gain settings, inductive solutions based on variable differential transformer,...). In combination with an appropriate magnetic circuit, a programmable linear Hall sensor simplifies the realization of any rotary or linear position sensor. The programmable linear Hall sensor can actually compensate all the system tolerances (mechanical, magnetic, electrical and thermal) thanks to an end-of-line calibration that is performed through the conventional connections of the IC.


Melexis has recently introduced the MLX90251. This new product generation extends all the programming possibilities for more versatility by using EEPROM. The Voq (output voltage when no field is applied), sensitivity (gain), direction of slope, the magnitude of sensitivity drift over temperature (sensitivity temperature coefficient - 1st & 2nd order), the clamping levels, the thermal Voq drift and the bandwidth, are all programmable. The linear ratiometric analog output voltage is proportional to the applied magnetic flux density and supply voltage. The MLX90251 has a very stable thermal compensation for both the sensitivity and the Voq over a broad temperature range. The MLX90251 provides also a unique ID number to the user for manufacturing traceability.


Melexis has developed the programming unit (PTC-03) to handle the in situ calibration of the MLX90251. The programmable linear Hall sensors can be used as the basic sensing part for any rotary or linear contactless position sensor. Automotive applications are: pedal position sensor, throttle position sensor, ride-height sensor, level sensor. . It can also be used for current sensing in combination with a slotted toroid. The IC is packaged into a thin leaded housing (4-SIP-VA) suitable for any magnetic construction. The datasheets of the MLX90251 can be downloaded from the Melexis official website.


Marleen Roosen,

Tongersesteenweg 100A,

3840 Borgloon, Belgium

Tel: +32 12 67 20 02

Fax: +32 12 67 20 03 

E-mail: marleen@inputint.com






1999 - 2004 Copyright ©, International Frequency Sensor Association (IFSA). All Rights Reserved.

Home - News  - Archives - Tools - Standardization - Patents - Marketplace  - Projects - Wish List - Subscribe - Search - e-Shop - Membership

 Members Area -Sensors Portal -Training Courses - S&T Digest - For advertisers - Bookstore - Forums and Poll - Sensor Jobs - Site Map