Environmental Sensor Has Wide Variety Of Indoor Applications
April 30, 2010 by admin
Filed under Temperature
Carlo Gavazzi Automation, the international electronics Group with activities in designing, manufacturing and marketing of electronic equipment, launches the CGES Series, a new range of sensors designed to measure various indoor environmental parameters, including CO2, Humidity, Temperature and Air Velocity.
When CO2 levels rise to an unacceptable level, with poor air quality and stuffy rooms, the CGES sensors can be used to help increase the supply of fresh air into the building and, as a result, improve the indoor air quality. The CGES sensors can be a significant contributor to compliance with ASHRAE 62-1989, which recommends a maximum concentration of 1,000 ppm of CO2 indoors. Additionally, the auto-calibrating feature ensures that the CGES is properly tuned for continuous, worry-free operation.
The CGES Series can also be used to control humidity levels in wet climates, thus elevating the comfort level of the occupants and discouraging the growth of mildew. Air velocity and temperature sensors can be used to keep indoor air temperatures at comfortable levels, and maximize energy efficiency.
All of these new sensors operate on 24 VAC/DC for flexibility, and feature multiple output options, including 0-10V, 4-20mA, and switching. They can be mounted in walls or ducts. The CGES sensors are a complete and versatile solution with applications in office buildings, schools, pools, museums, green houses, incubators, and food storage rooms, among many others.
Meggitt Sensing Systems Introduces New Acoustic Sensors
April 30, 2010 by admin
Filed under Featured, Industry News
San Juan Capistrano, CA – Meggitt Sensing Systems introduces a new line of Endevco® acoustic sensors and instrumentation, designed expressly for use in automotive NVH, cabin noise, vibro-acoustic testing, appliance noise evaluation, wind tunnel testing and other critical sound and noise measurement applications.
Endevco® prepolarized condenser measurement microphones, available in 1/8”, ¼”, and ½” diameters, are offered in free-field, pressure, low-cost array and random incidence types and can be used to meet IEC and ANSI standards. Array microphones offer a lower overall per channel measurement cost and are directly compatible with ISOTRON® (IEPE-type) signal conditioning. They can be used as drop-in replacements within existing accelerometer test system set-ups for as-needed precision noise measurements. Models may be purchased as stand-alone units, or in a microphone and low-noise preamplifier combination with iTEDS on-board memory storage capabilities, facilitating their use within larger channel count applications. All microphones are constructed with a stainless steel protective grid case and housing, as well as a special stainless steel alloy diaphragm, for high reliability in a variety of application environments.
Available for use with Endevco® precision measurement microphones are a full range of low-noise ISOTRON® preamplifiers, handheld calibrators, and accessories. In addition, all acoustic sensors and instrumentation are covered by a five-year comprehensive product warranty. For detailed technical specifications, drawings or additional information on acoustic sensors, or other Endevco® products available from Meggitt Sensing Systems, visit www.endevco.com.
Meggitt Sensing Systems
www.meggitt.com
Macro Sensors Unveils New Web Site
April 27, 2010 by admin
Filed under Industry News, Position
Pennsauken, NJ - Sensor manufacturer Macro Sensors (www.macrosensors.com) has redesigned its web site to make it easier for design engineers to find LVDT linear position sensors and RVDT rotary position sensors that meet the performance criteria of applications in specific industries.
Finding that many web visitors were unsure of what type of sensor that might meet their application requirements, Macro Sensor wanted to simplify sensor selection by visually grouping its LVDT and RVDT position sensors by target markets. Now, Macro Sensors’ web site segments LVDT and RVDT position sensors into application categories, grouping those that best operate in conditions prevalent in:
- Energy/Power Gen
- Factory Automation
- Aerospace/Military
- Hydraulics/Pneumatics
- Industrial OEM
- Civil Engineering/R&D
- Sub Sea/Marine
- Transportation
In addition to providing detailed product specifications and drawings on every product, Macro Sensors’ web site also features application stories and press releases that explain how different linear and rotary position sensors are implemented in specific industrial and military applications. For more information on Macro Sensors product line of LVDT based linear position sensors and RVDT based rotary position sensors, go to the web site at www.macrosensors.com or contact the factory at positionsensors@macrosensors.com.
Macro Sensors
www.macrosensors.com
Booklet Focuses On Water Pressure & Position Transmitters
American Sensor Technologies, Inc. (AST) has released a six page booklet outlining their pressure and position transmitter capabilities for the water industry. The booklet focuses on four categories of applications; including water pumps, sub-sea and desalination equipment, filtration monitoring, and well and sewage level monitoring. The Water Pumps section covers the main factors to consider for water pressure measurement. The Sub-sea and Desalination page focuses on the media compatibility concerns and packaging of a sensor. Filtration monitoring is a simple explanation of monitoring a filter with a differential pressure sensor with an example of the calculation. Finally, the Well and Sewage Lift Station section covers how hydrostatic level sensors work with an overview and diagram.
The Water Pressure Capabilities booklet highlights specific AST products that work in each application, helping guide the reader to a solution.
Position Sensor Measures Without Touching Its Target
The KD-2446 high-precision proximity sensor system from Kaman Precision Products offers lead-free RoHS compliance in a compact DIN package that is simple to install. Featuring a 10 KHz analog output and threshold-adjustable 3.3 KHz switched output, the KD-2446 is a flexible solution for hight speed automated manufacturing and process control applications.
The KD-2446 performs with 0.0008 percent FS resolution and 0.56 percent FS switch point hysteresis. With CE and RoHS compliance, the system is appropriate for OEM applications with worldwide distribution, including displacement, vibration, sorting and event capture.
Using inductive, eddy current technology that measures without touching the target, the sensor system also offers high performance with both ferrous and non-ferrous targets. It consists of two sub-assemblies: the sensor with integral cable and the signal conditioning or electronics module. Input voltage is variable from 12 to 24 volts DC, and gain is adjustable for up to 22 volts output, with 24 volt DC input.
The Kaman KD-2446 system comes standard with one of two production sensor configurations, 9C or 5CM. Both sensors are rated for continuous operation up to 400 degrees Fahrenheit.
Dual Redundant Output Rotary Position Sensor from Penny + Giles
Christchurch, UK – Penny + Giles has introduced the SRH220DR, a new dual redundant output contactless rotary position sensor. The SRH220DR uses proven, non-contact programmable Hall-effect technology to provide OEMs with highly reliable and accurate rotary measurement in extreme industrial and off-highway environments.
This new sensor, with a choice of integrated 6-way connectors, provides numerous programmable options. Designed for operation in extreme temperatures, the SRH220DR enables system designers to quickly and easily improve the safety and integrity of their control systems by using the dual independent power supply and output signals, allowing compliance with SIL-2 requirements for systematic safety as defined in IEC 61508.
The rugged SRH220DR is ideal for use in arduous operating environments and is suitable for use in diverse applications including cold planing machines (tracked steering control), garbage collection vehicles (bin lift control), road sweeping vehicles (4-wheel steering), and combine harvesters (header position control).
Penny + Giles’ configurable SRH220DR provides OEMs with a wide selection of parameter options including measurement range, and clockwise or anticlockwise direction output. This flexibility provides OEMs with a greater amount of control to configure the sensor to best suit their needs and achieve maximum performance.
SRH220DR Performance Features:
· Dual Redundant outputs – independent supply and output signals
· Contactless Hall-effect sensor technology
· Power requirements: 5Vdc regulated or 9-30Vdc unregulated power supply
· Over-voltage protection to 40Vdc
· User programmable with 341 different angles (0-20 to 0-360 degrees: in one degree increments)
· 12-bit resolution (0.025%) over selected angular range
· Analog (0.5 to 4.5Vdc) or digital (Pulse Width Modulated) signal outputs
· Factory programmable to 0.1 to 4.9Vdc output range
· Electromagnetic immunity to 100V/m
· ±0.4% non-linearity
· Low output signal noise – <1mVrms
· Output stability – < ±30ppm/ºC @ 5Vdc
· Operating temperature range: -40 to +140ºC @ 5Vdc
Unlike conventional shaft-operated rotary position sensors, the SRH220DR has an integrated shaft and magnet assembly that activates the Hall-effect sensor through a hermetically sealed chamber. This allows the sensor to be used in extreme environments that are subjected to high shock and vibration, and endure immersion in fluids for short periods (IP68 protected).
The sensor’s molded housing includes a crush-proof mounting flange detail which has stainless steel inserts, allowing fitting and re-fitting of the sensor without damage to the flange. The housing also includes a choice of integrated 6-way connectors compatible with AMP Superseal 1.5 or Deutsch DT06 profiles.
The SRH220DR can operate from either a 5Vdc regulated or 9-30Vdc unregulated power supply and has over-voltage protection to 40Vdc. Each of its output channels can be supplied programmed with any one of 341 different angles in the range 0-20 to 0-360 degrees, in one degree increments, and features a 12-bit resolution (0.025%) over the selected angular range.
To ease configuration, SRH220DR can be factory-configured with either analog (0.5 to 4.5Vdc) or digital (Pulse Width Modulated) signal outputs as standard. It can also be factory programmed to offer 0.1 to 4.9Vdc output range, matching the equivalent signals from a potentiometer. The SRH220DR’s two outputs can be used for error checking if they are set up to be opposed (clockwise on the first signal and anticlockwise on the second signal) and the output summed.
SRH220DR features electromagnetic immunity to 100V/m and it has a very low maximum output signal noise of less than 1mV. This means that no additional signal filtering is required on the output signal. It also has a class-leading non-linearity of ±0.4%. When powered with 5Vdc, the SRH220DR has an operating temperature range from -40 to +140ºC, with a stability of less than ±30ppm/ºC. An optional lever arm kit can be supplied, where installations require this feature.
Penny + Giles
www.pennyandgiles.com
Light Section Has Multiple Sensor Applications
Leuze’s new line of light section sensors provide a cost-effective solution to detect an object’s profile, dimensions and presence.
The new light section sensors can be applied wherever large objects need to be detected reliably, quickly and accurately across longer distances but without extremely high requirements when it comes to precision.
The large measurement range of up to 800 mm opens up completely new application fields using proven light section sensor technology. The new light section sensors take over where, for lack of alternatives, oversized and cumbersome sensor solutions have been used up to now.
The Line Profile Sensor (LPS) is used whenever sizes and positions of stationary or moving objects are to be measured. An additional encoder connection permits the creation of 3D data when scanning moving objects. This opens up a large range of application possibililties in position, contour and volume measurement.
The Line Range Sensors (LRS) are designed to perform proximity object detection along the laser line. Similar to a light barrier or a laser scanner, the sensor detects the presence of objects through scanning. With individual configuration, one sensor can be used to detect single or multiple objects.
The Line Edge Sensors (LES) determine the position of objects via their edges. By detecting height differences the sensor calculates and delivers accurate object positions. That way heights and widths or positions are reliably provided as data for further processing. At the same time one or more edge positions can be output via the individual configuration.
Proximity Sensor Measures Without Touching Its Target
The KD-2446 high-precision proximity sensor system from Kaman Precision Products offers lead-free RoHS compliance in a compact DIN package that is simple to install. Featuring a 10 KHz analog output and threshold-adjustable 3.3 KHz switched output, the KD-2446 is a flexible solution for high speed automated manufacturing and process control applications.
The KD-2446 performs with 0.0008 percent FS resolution and 0.56 percent FS switch point hysteresis. With CE and RoHS compliance, the system is appropriate for OEM applications with worldwide distribution, including displacement, vibration, sorting and event capture.
Using inductive, eddy current technology that measures without touching the target, the sensor system also offers high performance with both ferrous and non-ferrous targets. It consists of two sub-assemblies: the sensor with integral cable and the signal conditioning or electronics module. Input voltage is variable from 12 to 24 volts DC, and gain is adjustable for up to 22 volts output, with 24 volt DC input.
The Kaman KD-2446 system comes standard with one of two production sensor configurations, 9C or 5CM. Both sensors are rated for continuous operation up to 400 degrees Fahrenheit.
Sensor Signal Conditioning
April 7, 2010 by admin
Filed under Frank Talk, Signal Conditioning
Randy Frank discusses differences in signal conditioning circuitry.
All Sensors MLV Series in Frank Talk about Sensors
April 7, 2010 by admin
Filed under Frank Talk
Frank interviews All Sensors’ Tim Shotter about the applications of their new product line the MLV (millivolt low voltage) series of products.
