BRPI0705873A2 - A process and device for continuously measuring the weight of false fabrics called tnt (nonwoven) or non-woven - Google Patents
A process and device for continuously measuring the weight of false fabrics called tnt (nonwoven) or non-wovenInfo
- Publication number
- BRPI0705873A2 BRPI0705873A2 BRPI0705873A BRPI0705873A2 BR PI0705873 A2 BRPI0705873 A2 BR PI0705873A2 BR PI0705873 A BRPI0705873 A BR PI0705873A BR PI0705873 A2 BRPI0705873 A2 BR PI0705873A2
- Authority
- BR
- Brazil
- Prior art keywords
- woven
- tnt
- weight
- capacitive sensor
- distance
- Prior art date
Links
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
PROCESSO E DISPOSITIVO PARA MEDIR CONTINUAMENTE A GRAMATURA DE FALSOS TECIDOS CHAMADOS DE TNT (TECIDO-NãO-TECIDO) OU NON-WOVEN. A presente invenção refere-se a um processo e equipamento para medição da gramatura de tecidos TNT de matéria plástica, de maneira contínua e sem contato, com o uso de um sensor capacitivo. Essa medição pode ser feita de 3 maneiras; com o uso de um anteparo metálico fixo (3), cuja distância até o sensor capacitivo é fixa; outra maneira, é com o uso de um anteparo metálico não-uniforme (6) cuja distância até o sensor capacitivo não é fixa ao longo da largura do filme, sendo essa distância medida constantemente por um sensor eddy-current (9). Esta distância medida serve para re-calibração constante da fórmula que relaciona a capacitância medida com a gramatura do tecido. A terceira modalidade de medição é com o uso somente de um sensor capacitivo (12), encostado ou quase encostado ao tecido TNT sem o uso de nenhum anteparo metálico.PROCESS AND DEVICE FOR CONTINUOUSLY MEASURING THE GRAMATURE OF FAKE FABRICS CALLED TNT (NON-WOVEN) OR NON-WOVEN. The present invention relates to a process and equipment for measuring the weight of continuous plastic, non-contact TNT fabrics using a capacitive sensor. This measurement can be done in 3 ways; using a fixed metal shield (3), the distance of which to the capacitive sensor is fixed; another way is by using a non-uniform metallic shield (6) whose distance to the capacitive sensor is not fixed along the width of the film, this distance being constantly measured by an eddy-current sensor (9). This measured distance is for constant re-calibration of the formula relating the measured capacitance to the weight of the fabric. The third mode of measurement is the use of only a capacitive sensor (12) touching or nearly touching the TNT fabric without the use of any metal shields.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0705873 BRPI0705873A2 (en) | 2007-11-19 | 2007-11-19 | A process and device for continuously measuring the weight of false fabrics called tnt (nonwoven) or non-woven |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BRPI0705873 BRPI0705873A2 (en) | 2007-11-19 | 2007-11-19 | A process and device for continuously measuring the weight of false fabrics called tnt (nonwoven) or non-woven |
Publications (1)
Publication Number | Publication Date |
---|---|
BRPI0705873A2 true BRPI0705873A2 (en) | 2009-07-21 |
Family
ID=40873683
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BRPI0705873 BRPI0705873A2 (en) | 2007-11-19 | 2007-11-19 | A process and device for continuously measuring the weight of false fabrics called tnt (nonwoven) or non-woven |
Country Status (1)
Country | Link |
---|---|
BR (1) | BRPI0705873A2 (en) |
-
2007
- 2007-11-19 BR BRPI0705873 patent/BRPI0705873A2/en not_active IP Right Cessation
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B03A | Publication of an application: publication of a patent application or of a certificate of addition of invention | ||
B08F | Application fees: dismissal - article 86 of industrial property law |
Free format text: REFERENTE AS 3A E 4A ANUIDADES. |
|
B08K | Lapse as no evidence of payment of the annual fee has been furnished to inpi (acc. art. 87) |
Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2161 DE 05/06/2012. |