Sensors & Transducers


Latest Articles

Tribo-electric dust sensor characteristics
September 2005, Environmental Process Analytics
DC tribo-electric devices are only slightly influenced by particle size distribution, whereas AC devices possess an unpredictable sensitivity to velocity and gas temperature effects, limiting their calibration to one particular plant condition only.

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Earth leakage transducers
September 2005
LEM is offering the CT family of current transducers for use in a range of safety applications including solar installations. The new transducers measure an AC or DC leakage current of 30 mA or more (with ...

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Sensing volatile organic gas compounds
September 2005
Various sensor technologies are currently used for the detection of toxic and combustible gases. The most common ones are solid state, catalytic bead, electrochemical, infrared and photo-ionisation detectors. ...

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Light curtains in commercial laundries
September 2005
The processing of commercial laundry has now become very automated and processing as much laundry as possible, as quick as possible, is very important. Although some laundry batches are charged and processed ...

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Fast optical width-sensor
September 2005, Temperature Controls
Baumer has designed and developed the ParCon line sensor for the accurate side measurement of web edges, measuring the width of objects or detecting small objects. There is a 25 mm wide parallel beam ...

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Versatile sensing solutions
September 2005
Telco sensors have built up a reputation for rugged dependability, often under awkward and hostile operating conditions. Telco conducts annual seminars where its teams from around the world share some ...

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Rugged inductive conductivity sensor
September 2005, Microsep
The new Mettler Toledo Ingold InPro 7250 series is an enhanced inductive conductivity sensor that follows the successful InPro 7200 series. It is designed for conductivity applications in tough conditions, ...

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High accuracy current transducers
September 2005
LEM SA of Geneva, Switzerland, has released the ITB 300-S high accuracy current transducer, with the following characteristics:    * Nominal primary current: 300 A RMS AC or DC.    * Linearity: 0,001%.    ...

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Sensors detect glass and transparent plastic
September 2005
In the past, the detection of transparent material required complicated adjustment of the sensor to the application. IFM Electronic's new system consists of a retro-reflective sensor with polarisation ...

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Ultrasonic sensors with two outputs
September 2005, Instrotech
Instrotech's range of Senix ultrasonic sensors is intended for non-contact air distance measurement operating from 50 mm to 11,3 m. The design is suitable for material sensing - and is unaffected by object ...

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Short C-slot cylinder sensor
September 2005
Following the success of IFM Electronic's innovative T-slot cylinder sensor, the company has introduced the MK53 series of short C-slot cylinder sensors that are real alternatives to the reed switch. ...

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Versatile valve sensor with DeviceNet
September 2005, Turck Banner Southern Africa
Turck is offering a new valve position sensor that allows for direct connection to DeviceNet field bus networks, the Ni 4-DSU35-2DNETX5-H1150. It is a durable solid-state sensor designed for use in a ...

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Rugged hollow shaft encoder
September 2005, Temperature Controls
Baumer Electric has repackaged the magnetised rotor and sensor in a 58 mm hollow shaft encoder housing. Called the EcoMag, this incremental encoder is rugged and economical, based on proven magnetic technology. ...

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Range of draw-line encoders
September 2005
Elcis is offering a line of quality incremental and absolute wire transducers, featuring greater lengths and with IP64 protection. The line includes models having a maximum useful stroke ranging from ...

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Sensors for refrigerant gases
August 2005, PREI Instrumentation
In the past, the primary gases used in the refrigeration industry were ammonia and freon. Freon was found to deplete the ozone layer and was subsequently banned through an international treaty. The new ...

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High-precision inclinometers
August 2005, ATI Systems
At this year's Hanover Fair, Fraba Posital presented a new generation of compact, biaxial inclinometers with a measuring range of 5, 15 or 30°. Their IP66 metal casing and overall robust design means ...

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Radio frequency emissions' effect on sensors
August 2005, Turck Banner Southern Africa
Radio frequency interference (RFI) noise on the plant floor can cause electrical interference that often affects the function of proximity sensors. This RF noise is caused by the use of variable frequency ...

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Low-cost single beam photo amplifier
August 2005
The low-cost PA 09 is intended for use wherever a single infrared beam is required to prevent automatic doors from closing prematurely, therefore preventing injury to passing people/passengers, or damage ...

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Intelligent photo amplifier
August 2005
Telco says that its remote transmitter (LT) and receiver (LR) sensors in combination with a Telco Photo Amplifier (PA) will operate problem free through steam, oil, grease, water, fog, dirt and most other ...

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Robust optical fork sensors
August 2005
Telco has been in the competitive photoelectric market since 1982, proving its ability to keep ahead with its products. Its high-performance photoelectric system delivers reliable performance in demanding ...

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