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Thickness Measurements on Rubber Sheets and Coatings


Rubber sheets and coatings can be difficult to gauge with conventional mechanical thickness measurement techniques. However, ultrasonic thickness gauging enables measurements on any point on the surface of a rubber sheet—not just the edges—without contacting the opposite side. Ultrasound waves travel through the rubber coating and reflect from the acoustic interface of the rubber and the substrate. This acoustic interface can be air, rubber steel, rubber composite, or other materials as long as the outside surface of the rubber is available for probe coupling.

It is important to fully understand the application before taking thickness measurements. Rubber coating on certain materials may require special setups to maintain accurate thickness readings.

Ultrasonic Equipment Used for Thickness Measurements on Rubber Sheets

Ultrasonic thickness measurements on rubber sheets can be performed using precision thickness gauges, such as the 38DL PLUS™ gauge and the 45MG gauge with Single Element software. When combined with the appropriate transducers between 2.25 MHz and 20 MHz, these handheld gauges can typically measure rubber materials in the range of 0.008 to 0.250 in. (0.2 to 6 mm). This range will vary depending on the transducer and setup being used. Thick or attenuating rubber materials will require the High Penetration software option for the 38DL PLUS and 45MG gauges.

The 72DL PLUS™ gauge offers a larger touch-screen display and a higher measurement update rate (up to 2 KHz). This gauge is available in a high-frequency version (up to 125 MHz) for measuring very thin rubber coatings. It can measure much thinner materials than conventional ultrasonic thickness gauges.

Olympus IMS

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The 72DL PLUS™ advanced ultrasonic thickness gauge delivers precision thickness measurements at high speed in a portable, easy-to-use device. Compatible with single element transducers up to 125 MHz, this innovative instrument is ideally suited to measure the thickness of ultra-thin materials, including multilayer paint, coatings, and plastic. It can simultaneously display the thickness of up to 6 layers.

Zaawansowany grubościomierz ultradźwiękowy 45MG dostępny jest ze standardowymi funkcjami pomiarowymi oraz z opcjami oprogramowania. Ten unikalny przyrząd jest kompatybilny z całą gamą głowic jedno- i dwuprzetwornikowych do pomiaru grubości firmy Olympus.
Wszechstronnego grubościomierza 38DL PLUS™ można używać z głowicami dwuprzetwornikowymi do wykonywania pomiarów skorodowanych rur oraz z głowicami jednoprzetwornikowymi do wykonywania bardzo precyzyjnych pomiarów grubości cienkich lub wielowarstwowych materiałów.
Grubościomierz z czujnikiem hallotronowym Magna-Mike™ jest wyposażony w sondę magnetyczną umożliwiającą wykonywanie dokładnych pomiarów materiałów nieżelaznych i cienkich, takich jak butelki z tworzywa sztucznego.
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