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Hand-held instrument checks glass strength
-New equipmen Eddy current probes made for hazardous areas Eddy current probes and drivers which are safe for use in hazardous areas of refineries and petrochemical plants have been launched by CM L of Berkshire, Ltd.
rotating machinery. The instruments work by measuring the distance between the probe tip and monitoring surface.
Designed for use in conjunction with the CM L range of monitoring instrumentation, the 1900 range is said to be particularly designed for checking
Condition Monitoring Ltd, Unit 2, Tavistock Industrial Estate, Ruscombe Lane, Tvvyford, Berks RG10 9N J, UK
Hand-held instrument checks glass strength Nondestructive checking of glass sheet can be carried out using a hand-held instrument from Sharpies Stress Engineers Ltd of Preston, UK.
Developed at the National ND T Centre at Ha/well, the See-Scan consists of a desk-top computer with floppy disc drive linked to a solid-state TV camera on a flexible arm.
This optical instrument relies on the relationship between in-plane compressive stresses which can be measured at edges of a toughened sheet and the quality of the sheet as a whole. This relationship is established by correlating the magnitude of edge stresses with the results of impact batch testing.
The camera provides an image of the test piece while inspection is performed with an ultrasonic probe equipped with an LED from which the camera receives signals. When the probe detects a flaw a signalis produced which breaks preset gate levels; the signal initiates an overpaint of the video image in co/ours related to the depth of the defect. In this way a colour-graphic C-scan image is built up.
Sheet thicknesses of up to 12 mm can be accommodated. Sharpies Stress Engineers Ltd, Unit 331, Walton Summit Centre, Bamber Bridge, Preston PR5 8AR, UK
Inspecting glass using the Sharpies stress meter
Microscope incorporates automatic features Semiconductor wafer inspection using an automatic microscope from Leitz is said to eliminate the need for the operator's hands to intrude into the clean area above the inspection stage.
Recording and real-time colour display of the results of manual ultrasonic inspection is possible using the See-Scan system launched by Sonomatic.
Designated the Ergolux AMC with LAF-AMC, the microscope automatically changes objective lenses with the help of a servomotor. It also has an auto-focussing system which allows the operator to concentrate totally on inspection.
The probe is calibrated and hand scanning is carried out in the normal way by a conventionally skilled operator, with the data stored for subsequent analysis if required. Sonomatic Ltd, 20 Rivington Court, Hardwick Grange, Woolston, Warrington WA1 4RT, UK
Measurement system available in UK Non-contact measu rement and inspection system Videk RM 1000 is now available in the UK. Released in the USA in October 1986, the system is currently used in the car components, food and pharmaceutical industries.
Leitz' Ergolux AMC
368
High resolution cameras are used with the Videk Vision controller to give a system which can operate at
upto 1800 parts per minute. Edge measurement and grey scale histogram analysis techniques are used to detect flawed or damaged parts. Further details from: Steve Saunders, Industrial lmaging Systems (A 1l k), Kodak Ltd, PO Box 66, Station Road, Hemel Hempstead, Herts HP 1 1JU, UK
NDT International December 1987
rotating machinery. The instruments work by measuring the distance between the probe tip and monitoring surface.
Designed for use in conjunction with the CM L range of monitoring instrumentation, the 1900 range is said to be particularly designed for checking
Condition Monitoring Ltd, Unit 2, Tavistock Industrial Estate, Ruscombe Lane, Tvvyford, Berks RG10 9N J, UK
Hand-held instrument checks glass strength Nondestructive checking of glass sheet can be carried out using a hand-held instrument from Sharpies Stress Engineers Ltd of Preston, UK.
Developed at the National ND T Centre at Ha/well, the See-Scan consists of a desk-top computer with floppy disc drive linked to a solid-state TV camera on a flexible arm.
This optical instrument relies on the relationship between in-plane compressive stresses which can be measured at edges of a toughened sheet and the quality of the sheet as a whole. This relationship is established by correlating the magnitude of edge stresses with the results of impact batch testing.
The camera provides an image of the test piece while inspection is performed with an ultrasonic probe equipped with an LED from which the camera receives signals. When the probe detects a flaw a signalis produced which breaks preset gate levels; the signal initiates an overpaint of the video image in co/ours related to the depth of the defect. In this way a colour-graphic C-scan image is built up.
Sheet thicknesses of up to 12 mm can be accommodated. Sharpies Stress Engineers Ltd, Unit 331, Walton Summit Centre, Bamber Bridge, Preston PR5 8AR, UK
Inspecting glass using the Sharpies stress meter
Microscope incorporates automatic features Semiconductor wafer inspection using an automatic microscope from Leitz is said to eliminate the need for the operator's hands to intrude into the clean area above the inspection stage.
Recording and real-time colour display of the results of manual ultrasonic inspection is possible using the See-Scan system launched by Sonomatic.
Designated the Ergolux AMC with LAF-AMC, the microscope automatically changes objective lenses with the help of a servomotor. It also has an auto-focussing system which allows the operator to concentrate totally on inspection.
The probe is calibrated and hand scanning is carried out in the normal way by a conventionally skilled operator, with the data stored for subsequent analysis if required. Sonomatic Ltd, 20 Rivington Court, Hardwick Grange, Woolston, Warrington WA1 4RT, UK
Measurement system available in UK Non-contact measu rement and inspection system Videk RM 1000 is now available in the UK. Released in the USA in October 1986, the system is currently used in the car components, food and pharmaceutical industries.
Leitz' Ergolux AMC
368
High resolution cameras are used with the Videk Vision controller to give a system which can operate at
upto 1800 parts per minute. Edge measurement and grey scale histogram analysis techniques are used to detect flawed or damaged parts. Further details from: Steve Saunders, Industrial lmaging Systems (A 1l k), Kodak Ltd, PO Box 66, Station Road, Hemel Hempstead, Herts HP 1 1JU, UK
NDT International December 1987