Endevco Absolute Pressure Transducer Addresses High-Sensitivity Applications

Meggitt Sensing Systems Endevco model 8530B is a high-sensitivity absolute pressure transducer in a compact 3.86-mm face diameter package.  The active four-arm strain gage bridge in silicon design is offered in ranges of 200, 500 and 1000 psia with 300 mV full scale output and high resonant frequencies of 750 kHz (200 psia). In addition, 1000 kHz versions are available in 500 and 1000 psia.

The pressure sensors have a 10-32 UNF-2A mounting thread and integral cable. An optional metric M5X0.8 mounting thread is available on special order.  Target applications include hydraulic and pneumatic pressure measurements, automotive airbag testing and transmission testing applications.

For more information on Meggitt Sensing Systems Endevco model 8530B 1000 series, click here.

The Object of Pepperl+Fuchs Newest Photoelectric Sensors is Clear

That is clear object detection. GLV18 Series photoelectric sensors with Clear Object Detection use reflectors to detect transparent objects up to 2.5 m away, or opaque objects up to 5 m away.

Offered in an industry-standard M18 threaded cylindrical housing, the sensor is up to 50% shorter. In addition, the company claims the power consumption is 50% less than many competitive models. 

The sensors can detect clear shrink-wrap webs or semi-transparent trays or cartons in material handling applications as well as the presence detection of clear clamshells, bottles, or pouch webstock in packaging applications.

For more information on Pepperl+Fuchs GLV18 Series photoelectric sensors with Clear Object Detection, click here.

IMI Sensors Adds ATEX Approval to its Series 686B Smart Vibration Switch

With ATEX as well as CSA approval for use in hazardous environments, IMI Sensors Series 686B USB Programmable Smart Vibration Switch is positioned to address protection of cooling towers, fin fans, pumps, HVAC systems, and other critical machinery operated in hazardous areas.

Based on an embedded piezoelectric accelerometer, the switch monitors vibration velocity for more consistent results, and improved reliability over mechanical designs. The switch has a remote reset capability and USB programmable threshold and time delays to avoid false tripping. Since the Series 686B has only to wires, it can easily replace legacy switches.

For more information on IMI Sensors Series 686B USB Programmable Smart Vibration Switch, click here.

Sensirion SDP600 Differential Pressure Sensors Now Include Failsafe Versions

Already used successfully in medical and HVAC applications, the newest Sensirion differential pressure sensor models, SDP620, SDP621, SDP630 and SDP631, allow verification of the measured values.

The failsafe sensors can be configured to provide special test patterns for error checking by an external microprocessor. With the right test pattern configurations, it is possible to measure differential pressure and mass flow values to Class C safety level, complying with Directives EN 12067-2:2004 and EN 13611:2007 for gas burners and gas burning appliances.

The mass flow temperature compensated SDP621 and SDP631 target mass flow measurements and the SDP620 and SDP630 sensors output the true differential pressure value. With failsafe certification, it is not necessary to use two redundant sensors to meet high safety requirements so total design cost can be reduced.

For more information about Sensirion SDP600 series differential pressure sensors, click here.

For more information about Sensirion failsafe differential pressure sensors, contact info@sensirion.com.

Measuring and Analyzing Engine Combustion Pressures

One of the more complex, yet increasing important pressure measurements is combustion pressure. For carmakers to meet emissions and fuel economy regulations, measuring the subtle variations in combustion pressure is critical. David R. Rogers has written a book specifically addressing the topic called, Engine Combustion: Pressure Measurement and Analysis. Published by SAE, the text is a comprehensive handbook for technicians and engineers involved in engine testing and development. The book discusses features and functions of pressure measuring equipment, the best practices for successful measurements  and how to recognize and diagnose problems

For more information and to order Engine Combustion: Pressure Measurement and Analysis, click here.

Balluff’s Linear Position Transducer Fits Into Small Spaces and Small Budgets

Designed to fit into small spaces, Balluff’s Micropulse PF-series linear transducer has a profile of less than 1-inch high.  The low profile design targets plastic injection and blow molding; woodworking and metalforming; material handling and more.

Using magnetostrictive sensing technology, the unit has a measurable range of 51 to 4572 mm (2 to 180 in) and a scalable, absolute, analog output (0 to 10V, 4 to 20 mA, 0.1 to 20 mA or -10 to 10V). The non-linearity for a stroke length of less than 500 mm is ±200 µm and for a stroke length greater than 500 mm, it is ±0.04% of full stroke. Based on the use of time-tested, field-proven technology, the company claims the units sell for an “economical price.”

For more information about Balluff’s Micropulse Perfect Fit linear position transducer, click here.

Sensirion Flow Meter Addresses Milliliter Applications

For flow rates below 100 ml/min, Sensirion’s SLQ-HC60 flow meter provides a reliable and inexpensive solution for automated systems and other applications. Using its CMOSens Technology that integrates signal conditioning circuitry and microelectromechanical systems (MEMS) structures in a CMOS microchip, Sensirion’s SLQ-HC60 flow meter provides a 0–10V analog output signal from a supply voltage of 24V. With typical repeatability of 1 to 2%, the typical response time is less than 50 ms. The flow channel of the sensor has an inside diameter of 1.8 mm that allows a connection to 1/8” or 3-mm plastic hoses via threaded couplings.

For more information about the Sensirion SLQ-HC60 flow meter, click here.

Turck Incremental Magnetic Encoders Fit into Small Spaces

Squeezing an incremental encoder into a tight spot can be a problem. TURCK’s newest incremental magnetic encoders designed with a miniature 24-mm diameter housing can address the space issue in many applications. The non-contact Kübler by TURCK 2430 shaft and 2440 blind hollow shaft encoders operate between -20 to 85°C, and a maximum speed rating of 12,000 RPM. With shock resistance to 100g and vibration resistance to 10g, the encoders provide high degree of ruggedness. Both models are available with radial and axial cable outlets.

For more information on Kübler by TURCK 2430 and 2440 incremental magnetic encoders, click here.

Accelerometer Operates in Continuous 260°C Environment

Designed for monitoring vibration in gas turbines, Meggitt Sensing Systems Endevco Model 6222S accelerometer is a piezoelectric design with sensitivities of either 20, 50 or 100 pC/g. The sensor’s piezoelectric technology does not require an external power supply. The unit’s balance differential output allows its use with any industry differential charge amplifier. The sensor’s packaging is a standard ARINC three-point mounting configuration using three mounting bolts. The unit has an integral two-pin 7/16-27 UNS-2A threaded receptacle as standard with an available three-pin option. 

In addition to gas turbine measurements the accelerometers are also well suited for high temperature and high reliability vibration monitoring in helicopter Health & Usage Monitoring Systems (HUMS) as well as ground and onboard aircraft engine monitoring.

For more information on Meggitt Sensing Systems Endevco Model 6222S – 100A Accelerometer, click here.

MEMS Technology Summit Will Bring Together Several Industry Pioneers

Using the 25^th Anniversary of the founding of NovaSensor as a celebration backdrop, the MEMS Technology Summit will be held at Stanford University on October 19-20, 2010. The event will celebrate the25th anniversary of the company founded by MEMS industry pioneers Dr. Kurt Petersen, Dr. Janusz Bryzek and Mr. Joseph R. Mallon Jr. (shown in the picture).

Other industry pioneers who will present their views on the future of MEMS technology at the conference include Professor Kensal (Ken) Wise of the University of Michigan, Professor Tom Kenny of Stanford University, Dr. Ken Gabriel of DARPA, Professor Emeritus Stephen Senturia of MIT, Professor Emeritus Richard Muller of the University of California Berkeley and Dr. Jiri Marek of Bosch (Germany). 

MEMS technology provides the basis for many of today’s pressure sensors, accelerometers, gyroscopes and other sensors, actuators and more.

For more information on attending this unique event, click here.

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