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SINGLE WIRE TECHNOLOGY SIMPLIFIES CAVITY PRESSURE SENSOR INSTALLATION. The increasing use of cavity pressure monitoring for quality assurance during the injection moulding of small products in multi-cavity moulds is making the installation of the sensors more difficult. To meet this challenge, Kistler Instruments (www.kistler.com) has applied its widely used single wire technology to a range of sub-miniature, indirect cavity pressure sensors. These sensors, mounted behind the ejector pin, measure cavity pressure by using the force on the pin and its cross-sectional area. The sensors use the same precision, piezoelectric technology as Kistler's direct measuring pressure sensors and have a virtually unlimited service life at operating temperatures of up to 200oC. The single wire, on-site replaceable cable can be cut to length after installation and several cables can be passed down a single bore making multi-sensor installation exceptionally simple. These single wire sensors are compatible with the Kistler multi cable system that allows up to eight sensors to be connected to a multi-connector mounted on the mould. A single multi-core cable is then used to connect to the Kistler multi-channel monitoring system equipped with the Unisens® system, which simplifies system configuration by giving the same sensitivity to all the sensors. The single wire technology system is very space efficient in multi-cavity moulds and has resulted in one installation with 112 (one hundred and twelve) pressure sensors mounted in a single, multi-cavity mould. February 2009 Home - Search - Suppliers - Links - New Products - Catalogues - Magazines Problem Page - Applications - How they work - Tech Tips - Training - Events