Dave Wilson, Editor, writes:
We see from your search that you're looking for information on the term "Switching Frequency",
and we have a large number of manufacturers' news releases and technical articles here on Engineeringtalk which will be of interest.
Let me be your guide.
Start with
the news release Photo-electric sensors spot small objects from
Siemens Automation and Drives, which we summarised at the time by saying "Siemens Automation and Drives' proximity sensors can detect objects in a range of sizes, at ranges of up to 30m".
A few weeks before,
we featured the news release Versatile drives ease customer choice from
Honeywell Control Systems: "A few Honeywell variable speed drives cater for all HVAC applications up to 30kW, simplifying model selection and reducing stockholding".
In September 2007, we covered the news from IFM Electronic
concerning its O5G and O5G500
- take a look at Photocells spot challenging materials
which says: "The O5G is sensitive enough even to pick up smoke, so the thinnest of plastic films poses no problems".
Take a look also at the news release from Balluff UK, Sensor range suits varied environments,
as well as Sensors detect transparent objects from IFM Electronic,
and New frame size extends drive range from Control Techniques.
See also:
Sensors fit in finger grips
(February 2007)
Aerco's Contrinex series 300 is a range of tiny, flush-mountable inductive sensors available with housing diameters of 3mm and M4, with body length of only 22mm
Bearings need protection from electric currents
(January 2007)
Phil Burge looks at the increase in electric-current-related bearing damage and failure, and introduces the latest generation of bearings designed to counter the problem
Proximity sensors maintain performance
(November 2006)
The latest photoelectric sensing technology from Telemecanique is ideal for challenging applications such as those found in packaging using clear containers
VSDs drive down HVAC costs
(November 2006)
Variable speed drives provide straightforward, convenient and cost effective way of achieving substantial energy savings in heating, ventilating and air conditioning applications
AC drive range extends to 132kW
(July 2006)
Control Techniques has extended the power range of Commander SK AC drives up to 132kW, and reckons that never before has so much power and versatility been packed into such a small space
Photocells suit harsh conditions
(May 2006)
Photocells use high-grade stainless steel for applications in harsh environmental conditions in conveyor and packaging technology, while providing increased robustness for everyday tasks
Component drives are small and simple
(May 2006)
The new component drives in the ABB ACS150 range, rated from 0.37 to 4kW, use new technology to put them among the easiest drives to install ever launched
New open-loop speed control extends AC drive use
(March 2006)
Rotor flux control uses simple, accurate, mathematical motor model to calculate a simulated speed and position feedback, letting the loop be closed without mounting and wiring an encoder physically
Laser barrel sensor rejects ambient changes
(September 2005)
A new laser barrel sensor will appeal to companies developing and building automated conveying systems
Relays offer adjustable thresholds and delay
(June 2005)
The MR family of three-phase voltage relays is specially designed to offer adjustable thresholds and tripping delay
Proximity sensors handle harsh environments
(June 2005)
A range of inductive proximity sensors from Honeywell is designed for use in harsh environments encountered in aerospace, ordnance and marine markets
Component drives offer off-the-shelf solutions
(May 2005)
ABB has expanded its successful range of component drives by adding 1.5 and 2.2kW versions to its existing 0.18, 0.37 and 0.75kW models
More power for IP54 protected standard drives
(April 2005)
ABB has extended the range of its IP54 protected standard drives to 110kW from the previous maximum of 45kW
Laser sensor shrinks to M12 size
(March 2005)
The range of laser through-beam sensors from Contrinex, the Swiss industrial sensor specialist, has been extended to include an M12 sensor
Sensor sees through transparent label problems
(November 2004)
A new capacitive label sensor claims to provide a solution to the problem of applying transparent labels to cartons and bottles
Faster amp accelerates fibre-optic sensing
(September 2004)
A new version of the Contrinex 3065 DIN-rail-mounting fibre-optic amplifier has much increased switching frequency, making it ideal for sensing small parts moving at high lateral speeds
Tiny proximity switches sense further
(July 2004)
The world's smallest self-contained proximity switches now have extended sensing distance
Compact photocell is a clear winner
(June 2004)
A novel polarised retroreflective sensor plays a crucial role on each of the six bottling lines at Weser EMS Erfrischungs in Germany
Gearboxes contribute to steel mill power boost
(June 2004)
A ground-breaking combined electrical and mechanical upgrade of the Tandem Cold Mill at Corus Steel in Port Talbot, South Wales will more than double the power handling capability in the mill
Fibre-optic amplifiers mount on DIN rails
(May 2004)
Swiss industrial sensor specialist, Contrinex, has a new range of fibre-optic amplifiers for mounting on DIN rails (DIN/EN50022) that is suitable for many applications
Budget pricing for solid-state proximity sensors
(May 2004)
Meeting the need for robust, highly accurate proximity sensors, the Infra X sensors range is designed to operate in a wide range of demanding applications and is very competitively priced
Accuracy boost for laser through-beam sensors
(April 2004)
A new range of M18 laser through-beam sensors provides much greater accuracy and a precise switch point anywhere between the sender and receiver
Label detection gets faster and easier
(March 2004)
Along with faster switching speeds and a very simple teach-in button for setting operational parameters, the new GS 06 label detection sensor from Leuze Mayser also offers improved reliability
Wheels of steel turn into energy gold
(January 2004)
Nearly 1MW of energy is being saved each year at Magnetto-Topy's steel wheel manufacturing plant in Coventry, following the installation of seven ABB drives
Photoswitch shrinks into M12 housing
(January 2004)
Erwin Sick has released its latest range of V12 photoelectric switches, all redesigned and rehoused in cylindrical M12 housings
Standard drives go beyond the norm
(December 2003)
A new range of intuitive standard drives is designed to be sold off-the-shelf with few optional extras
The drive for quieter lifts
(November 2003)
A major refurbishment of a Birmingham office block has one feature that points the way to a quiet revolution that is taking place in the lift market
Gearless lift replacement is quiet revolution
(August 2003)
A major refurbishment of a Birmingham office block has one feature that points the way to a quiet revolution that is taking place in the lift market
Inverter design increases motor life
(August 2003)
Motor friendly inverters are the key to avoiding problems in AC motor/drive systems says Graham Perry, Product Manager for AC Drives at WEG
Intelligent drive gets motors in motion
(July 2003)
A new intelligent servo drive is capable of controlling both brushed and brushless motors from a single unit
IGBT inverters raise risk of motor bearing failure
(June 2003)
Marek Lukaszcyk outlines how the traditional problem of motor bearing failures due to electrical discharge has taken on new impetus with the widening use of PWM IGBT inverters
Composite 'uniquely' suited to switch
(June 2003)
A unique combination of mechanical properties led Siemens to select Verton composite for the switch lever of one of its high-performance contactors for switching and starting of motors and plants
Drives thrive in washdown applications
(May 2003)
The Commander SX range has IP66, Nema 4X ingress protection and is designed for direct to wall or 'next to motor' mounting
Fibre-optic amplifier checks on print registration
(May 2003)
The popular Datasensor S7 fibre-optic amplifier has been enhanced with the introduction of new models with white light emission and 10kHz switching frequency