Testing the leak tightness of RFID transponders in the production process

ID: 1561075
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(PresseBox) - RFID (Radio Frequency Identification) technology enables contactless data transmission without having to establish direct contact between the transmitter (transponder, tag) and the receiver (reader). This makes this method suitable for a wide range of applications (access control, work safety, traceability, medical technology, explosion protection "Ex"). In the automotive sector, wireless RFID sensors are used for monitoring functions (e.g. wheel rotation speed, tire pressure monitoring).

RFID transponders are available in various sizes and different designs. Depending on the area of application, they must be designed accordingly robustly. And, depending on the application, they must be sealed against water and moisture. As part of quality control, these products are tested for leaks during the production process (100 % inline routine testing).

The RFID transponder consists of an encapsulated housing with integrated electronics. The two halves of the housing are often ultrasonically welded together. This encloses an "air cushion" that protects the electronics. The housing must be leak-tight so that no moisture can penetrate. Due to the usually flat small housing design (typically 5 to 10 cm

The differential pressure tester CETATEST 515 in the variant "sealed component, high resolution" was especially developed for the process reliable leak test of small volume test parts and the detection of very small volume differences. Hereby highly sensitive pressure sensors and a measuring technique optimized for the detection of smallest volume differences are used. For example, volume differences of only 0.03 cm

Encapsulated test parts are tested in a hood which is pressurized, whereby the pressure loss into the interior of the test part caused by leakage is measured. Attention must be paid here: If the test part has a gross leak (e.g. housing defect), it is filled directly during the filling phase of the hood. In this case only the tightness of the hood surrounding the test part would be tested. Thus the test process consists of two steps: first the gross leak detection followed by fine leak testing. Typical test pressures are between 100 and 500 mbar. The requirements for the leak-tightness (permissible leakage rate) result from the application area of the transponder.



The CETATEST 515 is successfully used for the inline leak test of RFID transponders. The round transponder has a diameter of 30 mm and is 6 mm thick. It should be waterproof at a pressure of 200 mbar. For water tightness an air leakage rate of 0.01 mbar*l/s (corresponding to 0.6 cm

For a borderline test part with a leakage rate of 0.6 cm

Both tests (i.e. gross and fine leakage test) can be performed in a total test time of less than 3 seconds. In a measurement system analysis, a Cg-value (capability index) of significantly greater than 5 is achieved. It is also be possible to detect even a significantly lower leakage rate in a process-safe manner, which underlines the efficiency of this testing device.

The CETATEST 515 is delivered with an internationally accepted DAkkS calibration certificate (conform to DIN EN / ISO IEC 17025) and a 3 years warranty.

Solution Partner for industrial Leak Testing and Flow Measurement

The company CETA Testsysteme GmbH was founded in 1988 and is now existing more than 30 years. We are a manufacturer of physical measurement devices for leak testing and flow measurement. Compressed air and hydrogen are used as test media. These testing procedures can be integrated in the production line with high process reliability.

The test devices ("Made in Germany") are the company''s own developments and the components and accessories (e.g. calibration standards) are manufactured in-house. This ensures that the high quality requirements for the internal modules are met right from the start.

Due to different test device technologies and a wide scope of pressure and measurement ranges nearly every test requirement can be fulfilled. An integrated control of the correct test device function guarantees a high standard of process reliability. The scope of products also includes semi-automatic test stands. The test devices are used by the customers for quality assurance, quality control and production assurance. The customers come mostly from the fields of automotive industry, medical technology, heating and air-conditioning industry, fittings and household appliances industry, packaging industry and E-Mobility.

The company is certified according to DIN ISO 9001 and won the quality award NRW in the category Industry. The calibration laboratory has been accredited 2004 as DKD calibration laboratory and 2014 as DAkkS calibration laboratory by the Deutsche Akkreditierungsstelle (DAkkS) - as follower of DKD. DAkkS calibration (in accordance with the standard DIN EN ISO 17025) complies with the requirements of the ISO / TS 16949 standard, valid in the automotive industry. CETA Testsysteme GmbH is the first German manufacturer of leak-testers whose devices are serially supplied with DKD/DAkkS calibration since 2004.

Since 2012 CETA has been certified by "an outstanding credit rating".

The wide range of services includes consulting, feasibility analysis, commissioning, training, maintenance and calibration.

With cooperation partners in China, India, Indonesia, Korea, Mexico, Poland, Portugal, Singapore, Thailand, the Czech Republic, Turkey and Hungary and with thousands of test devices in use all over the world, CETA Testsysteme GmbH presents itself as a competent solution partner for industrial leak testing and flow measurement.



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Solution Partner for industrial Leak Testing and Flow MeasurementThe company CETA Testsysteme GmbH was founded in 1988 and is now existing more than 30 years. We are a manufacturer of physical measurement devices for leak testing and flow measurement. Compressed air and hydrogen are used as test media. These testing procedures can be integrated in the production line with high process reliability.The test devices ("Made in Germany") are the company''s own developments and the components and accessories (e.g. calibration standards) are manufactured in-house. This ensures that the high quality requirements for the internal modules are met right from the start.Due to different test device technologies and a wide scope of pressure and measurement ranges nearly every test requirement can be fulfilled. An integrated control of the correct test device function guarantees a high standard of process reliability. The scope of products also includes semi-automatic test stands. The test devices are used by the customers for quality assurance, quality control and production assurance. The customers come mostly from the fields of automotive industry, medical technology, heating and air-conditioning industry, fittings and household appliances industry, packaging industry and E-Mobility.The company is certified according to DIN ISO 9001 and won the quality award NRW in the category Industry. The calibration laboratory has been accredited 2004 as DKD calibration laboratory and 2014 as DAkkS calibration laboratory by the Deutsche Akkreditierungsstelle (DAkkS) - as follower of DKD. DAkkS calibration (in accordance with the standard DIN EN ISO 17025) complies with the requirements of the ISO / TS 16949 standard, valid in the automotive industry. CETA Testsysteme GmbH is the first German manufacturer of leak-testers whose devices are serially supplied with DKD/DAkkS calibration since 2004.Since 2012 CETA has been certified by "an outstanding credit rating".The wide range of services includes consulting, feasibility analysis, commissioning, training, maintenance and calibration.With cooperation partners in China, India, Indonesia, Korea, Mexico, Poland, Portugal, Singapore, Thailand, the Czech Republic, Turkey and Hungary and with thousands of test devices in use all over the world, CETA Testsysteme GmbH presents itself as a competent solution partner for industrial leak testing and flow measurement.

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Date: 09/28/2020 - 08:18
Language: English
News-ID 1561075
Character count: 6579
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Firma: CETA Testsysteme GmbH
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Stadt: Hilden
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