bullet Sensors & Transducers e-Digest (S&TD)

 


 

No. 11, November 2002

 

Bullet

Table of Contents

 

EDITORIAL

 

Sensors Web Portal has been Awarded by Golden Web Award

 

November 19, 2002, TORONTO, ON - Sensors Web Portal (http://www.sensorsportal.com) has been awarded by 2002-2003 Golden Web Award from The International Association of Web Masters and Designers (IAWMD) in recognition of creativity, integrity and excellence on the Web and presented to those sites whose web design, originality and content have achieved levels of excellence deserving of recognition.

 

"We give our customers, members and visitors the best", said Igor L. Myshkin, General Manager of Sensors Web Portal Inc. "Today Sensors Web Portal is a concentrator of knowledge, ideas, engineering solutions, modern technologies, novel methods, new physical effects and principles of sensors. It is primary Internet resource for smart sensors and transducers. Our staff and web team at Sensors Web Portal Inc. have obviously worked very hard in order to keep high Quality Rating Score (QRS) placed our megaportal in the 98th percentile. Our visitors and customers should not waste time jumping on dead links. They are looking for latest and useful information on this emerging technical field and we give it them with high quality service. We are proud of this award very much" - added Mr. Myshkin.

 

Click <here> to download the press release in PDF format.

 

Dr. Sergey Y. Yurish,

Editor-in-Chief

E-mail: info@sensorsportal.com

Golden Web Award

 

RESEARCH

 

Two Novel Methods for Duty Cycle and Phase Shift Conversion - a Lot of New Possibilities

Advanced methods of measurement for frequency-time domain signals

 

November 21, 2002, TORONTO, ON - International Frequency Sensor Association (IFSA), announces two novel methods of measurement for duty-cycle and phase-shift. The methods are based on determination of average time interval and average period during the conversion time, multiply to the period of signal Tx. Both methods permit completely eliminate the component of error depending from the converted period of signal. The quantization error of methods does not dependent on the converted frequency and is determined by the pulse duration tx. Other significant features include a non-redundant conversion time (it is determined by the programmable error of period conversion) and wide range of frequencies of input signals.

 

An inventor - Prof. Nikolay V. Kirianaki, IFSA President has noted: "It was logical continuation of many years research and development in the field of new methods of measurement for frequency-time parameters of electric signals based on the Method of the Dependent Count. Both new methods can be released with minimum possible hardware like program-oriented methods of measurements".

 

Possible applications include (but not restricted) self-adaptive duty-cycle or phase-shift smart sensors, transducers, converters, universal multifunctional counters, data loggers, frequency-time domain DAQ boards and hand-held multifunctional multimeters. The methods provide a cost-effective solution for end users and measuring instruments designers who require high precision and low-cost instruments. The licenses including exclusive are available.

 

Click <here> to download the press release in PDF format.

 

Dr. Sergey Y. Yurish,

IFSA European Office,

Bandera str.,12

79013, Lviv, UA

Phone/fax: + 380 322 970857

E-mail: syurish@mail.icmp.lviv.ua

 

 

TECHNOLOGY

 

Major Lead Selenide Sensors Technology Breakthrough

 

A major breakthrough for Lead Selenide Sensors has taken place. It is now possible using PanJit's Adhesion Layer Structure for Chemical Bath and Sputtered PbSe films to adhere to silicon. This means PbSe films now can be integrated on to CMOS focal plane arrays. This is what has been asked for by PbSe supporters for the past 30 years.

 

This is a first of many steps to be made in the upcoming months for PbSe films on silicon. Yes, adjustments need to be made in the deposition and sensitization processes to provide the desired performance but this will be accomplished. Panjit will also be developing a Sputtered PbSe film to assist in the advancement of PbSe Technology. PanJit does not desire to manufacture sensors but to supply its Adhesion Layer Structure technology and Sputtered PbSe films to the existing manufactures. By working with the present PbSe manufactures the many new options available to improve the performance of PbSe sensors will be tested and implemented. There are now possible solutions to the past 30 years of drawbacks associated with the PbSe technologies.

 

George Engle,

Phone: +480 688 3544

E-mail: marketing@waferservices.com

 

 

PRODUCTS

 

Intrinsically Safe Piezoresistive Pressure Sensors

 

The Pressure Division of PCB Piezotronics, Inc., introduces a series of piezoelectric pressure sensors that have been certified as intrinsically safe for use in hazardous environments. Two configurations, each supporting a variety of measurement ranges from 50 psi full scale to 5000 psi full scale, are available. The ICP styles integrate built-in signal conditioning circuitry to support ease of use and long distance signal transmission capability. Charge mode styles include a short length of low-noise cable, along with an in-line charge converter, enabling the sensors to withstand higher temperature environments. Both types serve to measure dynamic pressure events, such as surges, pulsations, and spikes in liquid or gas medias.

 

The device are useful for monitoring the performance of compressors, pummps, and gas turbines as well as detecting flow anomalies in piping systems. This information can contribute to system tuning for increasing efficiencies, trimming waste, and reducing costs and maintenance.

 

Andrea Mohn,

PCB Piezotronics, Inc.

Tel: + (800) 828-8840,

Fax: + (716) 684-0987

E-mail: amohn@pcb.com

Http://www.pcb.com

Piezoelectric Pressure Sensor

 

 

Acoustic Measurement Microphones

 

The Vibration Division of PCB Piezotronics, Inc., introduces a new line of prepolarized, array, and precision condencer microphones. Prepolarized pressure and free-field microphones are available in both 1/4" and 1/2" sizes. Prepolarized random incidence models are available in a 1/2" size. PCB's  prepolarized microphones operate from ICP sensor power and are designed for use in a wide range of applications, including sound power testing, engine noise, outdoor noise monitoring, and acoustic chamber testing.

 

Series 130 Array Microphones will function with any ICP sensor power supply to provide a cost-effective method for large channel count sound pressure measurements. An affordable system can be assembled using the 130 Series microphones with multi-channel, simultaneous sound pressure data acquisition system consisting of 16 or more channels. The Series 130 Array Microphones are ideal for use with PCB's Series 440 Modular Signal Conditioning Systems. Typical applications include sound pressure mapping, acoustic mode analysis, near-field acoustic holography, and vibro-acoustic testing.

 

External free-field microphones are available in 1/2" size. These units have an exceptionally low sensitivity to serve humidity and temperature conditions. A probe style unit with a 1mm probe tip is also available for use in small enclosures, etc. Preamplifiers, ICP Preamplifiers, Dual Channel Amplifiers, Calibrators, and Pistonphones complete the new PCB microphone line.

Andrea Mohn,

PCB Piezotronics, Inc.

Tel: + (800) 828-8840,

Fax: + (716) 684-0987

E-mail: amohn@pcb.com

Series 130 Array Microphone

 

 

New CMOS Image Sensor with Integrated On-chip 

Timing and Control Circuitry

 

The IBIS5-1300 is a 1.024 (H) x 1.280 (W) a total of 1.05M pixel CMOS image sensor featuring triggered snapshot as well as rolling shutter operation modes. The snapshot shutter ensures that integration starts and stops for all the pixels at exactly the same time. Integration times as short as a few microseconds can be achieved. A multiple slope operation mode for increased dynamic range (from 60 dB up to 120 dB) can be selected. The optical format is 2/3" with a 6.7 m m x 6.7 m m pixel size. In rolling shutter mode, running at a pixel rate of 40 MHz, the IBIS5-1300 can provide up to 30 full image frames per second. In snapshot mode the full frame rate depends on the chosen integration time. Image information is available via an analogue output or 10 bit parallel digital output. The IBIS5-1300 with Integrated on-chip timing and control circuitry makes very compact, lightweight and flexible machine vision cameras achievable.

FRAMOS, Electronic Vertriebs GmbH,

Dauthendeystrasse 2,

D-81377 Munchen

Tel.: + 49.89.710 667-0

Fax: + 49.89.710 667-66

E-mail: info@framos.de

Image Sensor IBIS5-1300

 

 

Motion Detection Module with the Search Method Selection

 

By introducing the MD-015/010 from Pacific Corp. FRAMOS extends its product range with this motion detection module. The MD-015/010 contains 8 possibilities for adjustment of search positions in the display range, a selection of the search method regarding one static or dynamic comparison, 16 steps of day or night sensitivity settings and a detection of the movement interruption. With a resolution of 720 x 512 in the detection area the minimum detection size amount 8x8 dots. Various combinations of adjustments of detection sensitivity, detection and alarm time can be made with the MD-015/010.

 

FRAMOS, Electronic Vertriebs GmbH,

Dauthendeystrasse 2,

D-81377 Munchen

Tel.: + 49.89.710 667-0

Fax: + 49.89.710 667-66

E-mail: info@framos.de

Http://www.framos.de

Motion Detection Module MD-015/010

 

 

Portable, Battery-Powered, Three-Channel, Sensor Signal Conditioner

 

Model 480B21 signal conditioner from the Electronics Division of PCB Piezotronics, is an ICP sensor signal conditioner that features three-channel, portable operation; gain of x1, x10, and x100 for each channel; and frequency response from 0.15 Hz up to 50 kHz. The unit is especially well suited for use with triaxial accelerometers, but will also operate with single axis ICP accelerometers, force sensors and pressure sensors. The lightweight unit also features a fault indicator to alert of battery condition and potential sensor ot input cable problems. There are also BNC input and output connectors, a 4-pin triaxial sensor input connector, an external power input for use with an optional AC-power supply, and a 12 volt, auto-lighter, DC power adapter.

 

Andrea Mohn,

PCB Piezotronics, Inc.

Tel: + (800) 828-8840,

Fax: + (716) 684-0987

E-mail: amohn@pcb.com

Http://www.pcb.com

Sensor Signal Conditioner 480B21

 

 

 

 

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