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A151_e
Confocal displacement sensors
optoNCDT 2400



Liquid level measurement during capacitor production
During the production process capacitor elements                 Measurement system requirements:
must be dipped in a defined manner into a bath of                - Measurement range: 24 mm
liquid. To ensure constantly high quality it is crucial          - Required accuracy: 50 µm
that the capacitor elements are dipped exactly                   - Accuracy obtained: 10 µm
according to the specification. Therefore, it is of the          - Measurement on: Reflecting surface
utmost importance that the liquid level is maintained            - Material: Solvent, reflecting
at a very accurately defined height.                             - Ambient conditions: Area subject to
For these measurements conventional laser triangu-                 explosion hazards due to solvent vapors
lation sensors required a complicated system setup
and their complex adjustment incurred costs. The                 Measurement system setup: optoNCDT 2400
wave motion of the liquid that occurred interrupted              - IFC2400 controller
the measurement signal which could not then be                   - IFS2400-24(01) sensor for 24 mm measurement
used for further evaluation.                                       range and additional V4A sealing ring
To compensate these shortcomings, a confocal                       (Ex protection)
sensor of the Series optoNCDT2400 was employed.                  - C2400-10 sensor cable 10 m long
By means of the confocal principle this system
measures to the directly reflecting surface of the               Reasons for the system selection
solvent. The explosive vapors are kept away from the             - Non-contact measurement
sensor since it is inserted into a protection housing            - Highly accurate against directly reflecting target
with a sealing ring and an O-ring seals the optical              - Easy, precise sensor mounting
system. In addition the conduit is constantly heated
externally to prevent condensation forming on the
optical system.
                                                                                Protection housing

This measurement arrangement ensures that due to                        Confocal sensor
an exactly defined dipping depth the individual
                                                                                                               Sealing ring
components conform to the defined quality criteria,                                                            Lens
such as for example the shelf-life or safety under                                                             O-ring
short-circuit conditions.




                                                                        Measurement of the filling level


MICRO-EPSILON                                                                                         A member of micro-epsilon group.
Koenigbacher Str. 15        Tel.: 0 85 42/1 68-0   info@micro-epsilon.com   Certified DIN EN ISO 9001 : 2000
94496 Ortenburg / Germany   Fax: 0 85 42/1 68 90   www.micro-epsilon.com    Modifications reserved Y9781151

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App151 en liquid-level-measurement-during-capacitor-production

  • 1. A151_e Confocal displacement sensors optoNCDT 2400 Liquid level measurement during capacitor production During the production process capacitor elements Measurement system requirements: must be dipped in a defined manner into a bath of - Measurement range: 24 mm liquid. To ensure constantly high quality it is crucial - Required accuracy: 50 µm that the capacitor elements are dipped exactly - Accuracy obtained: 10 µm according to the specification. Therefore, it is of the - Measurement on: Reflecting surface utmost importance that the liquid level is maintained - Material: Solvent, reflecting at a very accurately defined height. - Ambient conditions: Area subject to For these measurements conventional laser triangu- explosion hazards due to solvent vapors lation sensors required a complicated system setup and their complex adjustment incurred costs. The Measurement system setup: optoNCDT 2400 wave motion of the liquid that occurred interrupted - IFC2400 controller the measurement signal which could not then be - IFS2400-24(01) sensor for 24 mm measurement used for further evaluation. range and additional V4A sealing ring To compensate these shortcomings, a confocal (Ex protection) sensor of the Series optoNCDT2400 was employed. - C2400-10 sensor cable 10 m long By means of the confocal principle this system measures to the directly reflecting surface of the Reasons for the system selection solvent. The explosive vapors are kept away from the - Non-contact measurement sensor since it is inserted into a protection housing - Highly accurate against directly reflecting target with a sealing ring and an O-ring seals the optical - Easy, precise sensor mounting system. In addition the conduit is constantly heated externally to prevent condensation forming on the optical system. Protection housing This measurement arrangement ensures that due to Confocal sensor an exactly defined dipping depth the individual Sealing ring components conform to the defined quality criteria, Lens such as for example the shelf-life or safety under O-ring short-circuit conditions. Measurement of the filling level MICRO-EPSILON A member of micro-epsilon group. Koenigbacher Str. 15 Tel.: 0 85 42/1 68-0 info@micro-epsilon.com Certified DIN EN ISO 9001 : 2000 94496 Ortenburg / Germany Fax: 0 85 42/1 68 90 www.micro-epsilon.com Modifications reserved Y9781151