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Vol. 51, No. 1, January 2005
Table of Contents
EDITORIAL
Sensors Survey 2004: Quick Poll Results
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It is my great pleasure to thanks all our members and visitors for participation in our Online Sensor Survey 2004: What Do You Use Most ? From 2 May 2004 up to the end of 2004 we have received 355 votes and comments with the following results: voltage output sensors - 46 %; current output sensors - 19 %; digital output sensors - 16 %; frequency output sensors 12 %; duty-cycle output sensors 2 % and other - 5 %. The last one includes phase-shift output sensors, charge output sensors and other options.
Taking into account the IFSA market forecast 'Forecasts and Modern Sensors Market: Today's Revolution Changes' and 'Sensors and Transducers: Frequency Output Versus Voltage Output' the market share for frequency-time domain sensors and digital sensors on its basis will be increased in the next five years.
Today there are a lot of manufactures producing digital output sensors with different interfaces and buses capabilities. It is still difficult to find the one to suit the smart sensors' requirements. As usually, sensor interfaces and buses are strongly associated with their field of application. Smart sensors are a new kind of application. So, our next Survey 2005 is about modern sensors interfaces and buses. As usually, our online mini survey will work like a mini forum. You are very welcome to answer only one survey questions ' What do you use most in your sensors and sensor systems ?' and give your comments and suggestions at http://www.sensorsportal.com/HTML/Polls.htm. Click the ' view results' and than 'comments' to see current results and opinions. In order to use it you must have Internet Explore 5.0 or Netscape 6.0 or higher browse version. In addition we will also publish this Survey in ASCII text format and online in IFSA Newsletter. Happy ping and nice Net surfing in 2005 !
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Prof., Dr., Sergey Y. Yurish, Editor-in-Chief, 46 Thorny Vineway, Toronto, Ontario, Canada, M2J 4J2 E-mail: ifsa@sensorsportal.com |
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PRODUCT NEWS
Industrial Pressure Sensors Detect Pulsations, Surges, and Leaks
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Depew, NY - Series 121 industrial, dynamic ICP® pressure sensors from the Pressure Division of PCB Piezotronics, Inc. detect very small pressure fluctuations in the presence of high static background pressures. Typical applications include the detection of dynamic pulsations, surges, leaks, water hammer, cavitation, and spikes in liquid delivery systems, pumps, and compressors.
Sensors contain built-in microelectronic circuitry to deliver a clean, voltage output signal, and are offered in full-scale ranges from 100 to 5,000 psi (700 to 35,000 kPa). Units feature hermetically-sealed, stainless steel construction and a 1/4 NPT or straight metric M14 mounting thread, and are available with a 2-pin MIL connector or an integral, submersible cable assembly. Electrical case isolation provides shielding from electromagnetic fields and eliminates ground loop problems.
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Dan Cummiske, Division Manager Pressure Division 3425 Walden Avenue Depew, NY 14043-2495 USA Tel.: (888) 684-0011 ext. 2613, fax: (716) 686-9129 E-mail: dcummiskey@pcb.com |
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Anti-Corrosion Temperature Probes
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MEMPHIS, Tennessee (January 9, 2005) – Precon announced the Anti-Corrosion Series Temperature Probes. The ACP Series of probes is constructed from 300 series stainless steel for excellent resistance to a wide variety of chemicals and environments. It is available with a choice of NTC thermistor or RTD elements with a variety of resistance curves and accuracies available. Additional options include probe length, thread size, custom wire or cable, and thermally conductive epoxy to maximize response time. The ACP Series Probe is suitable for applications requiring long life in a demanding environment, including medical equipment, analytical instruments, food equipment, and process chemical uses.
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Jerry Moran, OEM Sales & Marketing Manager Precon Inc., 2999 Brother Blvd., Memphis, TN 38133 Tel: (901) 388-9137, fax (901) 388-3051 E-mail: sales@preconusa.com |
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Dynamic Force Sensors Measure Fast-Rising, Short-Duration Events
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Depew, NY - Piezoelectric force sensors from the Force/Torque Division of PCB Piezotronics, Inc. accurately measure dynamic force in compression, tension, and impact modes. Unlike strain gage sensors that are suitable for measuring slowly changing or static loads, dynamic force sensors possess the necessary response and endurance to accurately follow fast-rising, short-duration force events such as crimping, stamping, punching, forming, and drop and impact testing.
A variety of dynamic force sensor types are offered, including ring, three-component ring, link, impact, penetration, and strain styles. ICP® and charge output versions are available; signal conditioning is also offered. Applications include tensile and fatigue testing, press force and machine process monitoring, package drop testing, force limited vibration testing, penetration testing, biomechanics research, and modal analysis.
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Peter Munschauer, Division Manager Force/Torque Division 3425 Walden Avenue Depew, NY 14043-2495 USA Tel: (888) 684-0004 ext. 2405, fax: (716) 684-8877 E-mail: pmunschauer@pcb.com |
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Programmable Bargraphs Provides Versatility in Most Applications
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The "PRO" (PROgrammable) Series bargraphs are the ideal choice for new applications, or for the replacement of switchboard meters, obsolete indicators, and set point controllers. Ametek/Dixson bargraphs are appropriate in any application where moving pointer meters have been used in the past, and in applications where greater accuracy, readability, and reliability are desirable.
The microprocessor-based instruments are feature-enhanced with brilliant red LED displays (optional green or amber) for excellent visibility, input signal ranges are switch-selectable and options are available to solve most common application problems. PRO Series bargraphs are rugged, reliable with high resistance to vibration and shock and a minimum of 88,000 hour MTBF.
User-programmability provides versatility and minimizes the need for spares. A solid-state design with no moving parts yields a highly reliable product, especially under conditions of shock, vibration, dust and moisture. Features such as linearization and min/max readings make the "PRO" Series the ideal choice for most applications.
Signal sensitivities span ANSI C39.1 ranges, all conventional current loops and voltage control signals. Configuration programming is accomplished using a PC serial link allowing these models maximum flexibility but can be purchased set up and with appropriate scaleplate ready for the customers application. The instruments are suitable for local or remote, primary or redundant system indication.
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VYDAS International Marketing Swan House Passfield Business Centre, Lynchborough Road, Passfield, Hants, GU30 7SB United Kingdom Tel: 44 (0)1428 751822, fax: 44 (0)1428 751833 E-mail: info@vydas.co.uk |
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Modular-Style Signal Conditioners for Modal Analysis
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Depew, NY - New modular-style 16-channel, unity gain signal conditioners from the Electronics Division of PCB Piezotronics condition ICP® sensor signals and are ideal for modal and structural testing applications. New Model 442B216 AC coupled signal conditioner features selectable ICP® or voltage mode; Model 442B316 offers selectable AC coupled ICP® mode or DC coupled voltage mode. Modules may be assembled into 2-, 3-, 5-, or 9-slot chassis.
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Bill Andrews, Division Manager Electronics Division 3425 Walden Avenue Depew, NY 14043-2495 USA Phone (888) 684-0015 ext. 2606, fax: (716) 684-0987 E-mail: bandrews@pcb.com |
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Resolver Sensors Sales Increasing
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Terryville, USA - Advanced Micro Controls Inc, a Connecticut based industrial controls company, is realizing a 100% increase in year to date sales of their brushless resolvers and brushless resolver transducers. Leveraging over eighteen years of experience in the design, development, and manufacturing of resolvers, AMCI boasts one of the industry's most comprehensive offerings of resolver-based products.
Besides manufacturing a complete line of size 11 resolvers, size 25 resolvers, and single-turn, multi-turn, and geared resolver transducers, AMCI also specializes in resolver interfaces and resolver-based limit switch controls. "Providing OEM customers with brushless resolvers and resolver transducers, in industry standard sizes, at competitive prices, is one of AMCI's greatest strengths. However, designing and manufacturing our own resolver electronic interfaces and resolver-based electronic limit switches is what attracts Machine Builders and System Integrators to our product - we are an authority on everything resolver" explained Leo Brennan, sales manager.
The resolver interface products that AMCI designs and manufactures are available for today's most popular PLC systems, including plug-in modules for Allen-Bradley, GE Fanuc, and Modicon. Customers requiring resolver interface, or resolver-based limit switch controls, for their industrial networks can explore AMCI's NEXUS solution; a network ready unit that can be configured for EtherNet IP, DeviceNet, ControlNet, or Profibus communication.
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Robert Alesio, PR Advanced Micro Controls Inc. 20 Gear Drive, Plymouth Industrial Park Terryville , CT 06798 USA Tel: (860)-585-1254, fax (860) 584-1254 E-mail: b.alesio@amci.com |
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Ultra-Low-Power Radio Architecture Provides Scaleable Platform
for Medical Implant Applications
Cambridge UK and Boston MA, January 18, 2004 - Cambridge Consultants has designed an intelligent radio transceiver architecture that introduces a new level of power economy and performance for in-body medical diagnostic and therapeutic applications. The design is intended for implementation on system-on-chip (SoC) solutions and provides a control and communications platform suitable for implantable medical devices - a market currently growing at double-digit rates. The device will operate in the Medical Implant Communications Service (MICS) frequencies - the medical band now emerging as a global standard.
A key attribute of Cambridge Consultants' design is exceptional power economy, and the architecture would consume an average current of less than 1µA, and less than 1.7mA peak, for a 0.05% duty-cycle, 400 kbits/second bi-directional communications application. This would provide more than 10 years of activity from a lithium cell in a typical pacemaker application for example. However, flexibility built into the radio design also allows the chip to be used for other systems with short-term high data rate communications requirements - such as swallowable video imaging.
The new implantable transceiver design, called SubQore, leverages Cambridge Consultants' portfolio of field-proven intellectual property for ultra-low power radio, as well as the consultancy's lean RISC processor core, XAP. Extreme attention to power economy has been applied throughout the design, both to consumption in the transceiver architecture, as well as the power-saving algorithms that are employed to wake up and control the device.
Although the range of implantable medical applications is expanding exponentially, each application is different and requires a particular mix of control, monitoring and communications facilities - and Cambridge Consultants expects to fine-tune the IC core for individual applications.
Barrie Nicholson,
Cambridge Consultants Inc.,
451 D Street, Boston MA 02210, USA
Tel: +1 617 532 4700, fax: +1 617 737 9889
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