Manufacturing medical devices with maximum precision
People’s health is always the top priority in medicine. Therefore it is particularly important to ensure a consistent level of quality and reliability in medical device production. High-precision measurement and rapid analysis are very much in demand here, since even minor deviations can sometimes lead to unforeseeable and serious consequences.
Production testing on membranes for nebulizers and medical instruments
Pari GmbH manufactures nebulizers to treat respiratory diseases that accurately meter the liquid drug. The liquid is pressed through the holes in a membrane, which is stimulated to produce ultrasonic vibrations by piezo elements, and atomized. Using laser vibrometry guarantees a consistent nebulizer quality and thus an excellent reproducible drug effect for the patient.
Polytec’s laser vibrometers also allow the detailed examination of the membrane’s vibration behaviour at product development stage and thereby enable continuous optimization of design and performance.
Complete quality control in production also uses the contactless measurement method to ensure zero-fault quality. A semi-automatic measuring station was developed together with Polytec for this very purpose. Compact laser vibrometers from Polyec measures the membrane’s movement with zero contact. Using production testing software from Polytec saves and analyses measured vibrometer data during the manufacturing processs allowing reliable pass-fail decisions as in-line or end-of line tests. Such complete production testing solutions from Polytec enable quality engineers around the globe in their every day quality assurance to continuously improve their yield and to reduce pseudo rejects.
Acoustic quality control with laser precision
Related products
VibroOne
The laser Doppler vibrometer VibroOne® is the one-box solution for non-contact vibration measurement up to 3 MHz. It is specifically designed for tightly packed setups, whether in research laboratories, challenging production environments or for non-contact analysis of tiny details on microstructures or biomedical probes. The optional inline HD+ camera helps positioning the laser precisely and provides proper test documentation.
IVS-500 Industrial Vibration Sensor
The IVS-500 Industrial Vibration Sensor is key to fast and non-contact vibro-acoustic quality inspection, structure-borne noise analysis and reliable pass-fail decisions. Its robust and compact design enables a smooth integration into process control systems for in-line and production testing up to 100 kHz, whenever requiring short cycle times like for end-of-line tests. The sensor is wear-free and avoids expensive servo-mechanisms or noise protection cabins.
SonicTC QuickCheck
Multi-channel, PC-based testing software for fully or partially automatic process monitoring and quality control based on the vibration behaviour of manufactured products. SonicTC QuickCheck is a flexible tool for acoustic and vibration measurement in industrial quality control. The versatile fields of application reach from series production to in-process development.
Further applications
- Amplitude measurement
![Measure vibration amplitudes optically: analyze structure-borne sound for amplitude measurement using laser measurement technology]( "Measure vibration amplitudes optically: analyze structure-borne sound for amplitude measurement using laser measurement technology")
Measure vibration amplitudes optically: analyze structure-borne sound for amplitude measurement using laser measurement technology - Actuators and drives
![Production testing of electric drives using in-line laser vibration measurement]( "Production testing of electric drives using in-line laser vibration measurement")
Production testing of electric drives using in-line laser vibration measurement - White goods
![Production testing on white goods, using laser vibration sensors for automated quality inspection]( "Production testing on white goods, using laser vibration sensors for automated quality inspection")
Production testing on white goods, using laser vibration sensors for automated quality inspection - Injection valves
![Production testing and quality control of fuel injectors with laser vibrometers]( "Production testing and quality control of fuel injectors with laser vibrometers")
Production testing and quality control of fuel injectors with laser vibrometers - Engine cold test
![Non-contact vibration measurement as end-of-line production testing]( "Non-contact vibration measurement as end-of-line production testing")
Non-contact vibration measurement as end-of-line production testing
