FR2539574A1 - Textile machine optical detector stray light dependent regulation - Google Patents

Textile machine optical detector stray light dependent regulation Download PDF

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Publication number
FR2539574A1
FR2539574A1 FR8319865A FR8319865A FR2539574A1 FR 2539574 A1 FR2539574 A1 FR 2539574A1 FR 8319865 A FR8319865 A FR 8319865A FR 8319865 A FR8319865 A FR 8319865A FR 2539574 A1 FR2539574 A1 FR 2539574A1
Authority
FR
France
Prior art keywords
light
functional block
stray light
intensity
optical detector
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
FR8319865A
Other languages
French (fr)
Other versions
FR2539574B1 (en
Inventor
Volker Guhr
Viktor Satzger
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kombinat Textima VEB
Original Assignee
Kombinat Textima VEB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kombinat Textima VEB filed Critical Kombinat Textima VEB
Publication of FR2539574A1 publication Critical patent/FR2539574A1/en
Application granted granted Critical
Publication of FR2539574B1 publication Critical patent/FR2539574B1/en
Expired legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01VGEOPHYSICS; GRAVITATIONAL MEASUREMENTS; DETECTING MASSES OR OBJECTS; TAGS
    • G01V8/00Prospecting or detecting by optical means
    • G01V8/10Detecting, e.g. by using light barriers
    • G01V8/12Detecting, e.g. by using light barriers using one transmitter and one receiver

Abstract

The regulation is performed by a circuit used for optical systems applied to monitoring moving goods in textile machinery so that switching processes are not triggered by stray light. The light intensity of a light emitting function block is regulated according to stray light influences so that a defined constant quantity of light faces onto a light sensitive functional block. This is achieved by enabling the light sensitive functional block to regulate the intensity of the light emitting block via an amplifier. The arrangement detects objects wich do not fully interrupt the light beam or only partially absorb the emitted light.

Description

Dispositif de commutation pour la régulation en fonc
tion d'une lumière extérieure de barrières lumineuses
sur des machines textiles
L'invention concerne un dispositif de commutation pour la régulation, en fonction d'une lu mière extérieure, de barrières lumineuses et se rapporte au domaine des fonctions de surveillance et de commande au moyen de barrières lumineuses
On connalt des barrières lumineuses qui déclenchent un signal quand des objets compacts , qui ne laissent pas passer les rayons, interrompent totalement le passage du faisceau lumineux (Analoge integrierte
Schaltkreise Industrielle Elektronik 1978/79, Firmenschrift des VEB Halbleiterwerk Frankfurt/O ; Hennig, W.
Switching device for functional regulation
tion of an external light from light barriers
on textile machines
The invention relates to a switching device for regulating, depending on an external light, light barriers and relates to the field of monitoring and control functions by means of light barriers
We know light barriers that trigger a signal when compact objects, which do not let rays pass, completely interrupt the passage of the light beam (Analoge integrierte
Schaltkreise Industrielle Elektronik 1978/79, Firmenschrift des VEB Halbleiterwerk Frankfurt / O; Hennig, W.

Fotoelektronik Franzisverlag München). L'inconvénient de ces barrières lumineuses connues est qu'elles ne permettent pas d'enregistrer d'une façon sure des objets qui n'interrompent pas complètement le passage du faisceau, ou qui n'absorbent que partiellement la lumière. Avec ces barrières lumineuses, des opérations de commutation peuvent être déclenchées par des influences lumineuses étrangères.Fotoelektronik Franzisverlag München). The disadvantage of these known light barriers is that they do not make it possible to record in a safe manner objects which do not completely interrupt the passage of the beam, or which only partially absorb the light. With these light barriers, switching operations can be triggered by foreign light influences.

On connalt en outre des dispositifs de commutation dans lesquels, les influences lumineuses étrangères sont compensées par un montage récepteur
coûteux (Dakubaschk, H. : Elektronikschatungen mit dem
Operationsverstàrker A 109, S. 1 7, Militàrverlag der
DDR ; Hennig, W. : Fotoelektronik, Franzisverlag München).
Switching devices are also known in which the foreign light influences are compensated by a receiver arrangement.
expensive (Dakubaschk, H.: Elektronikschatungen mit dem
Operationsverstàrker A 109, S. 1 7, Militàrverlag der
DDR; Hennig, W.: Fotoelektronik, Franzisverlag München).

L'invention a pour objet de réaliser un
dispositif de commutation qui permet de supprimer les
inconvénients mentionnés.
The object of the invention is to produce a
switching device which removes the
disadvantages mentioned.

L'invention se propose de réaliser un dispositif de cominutation qui supprime les influences extérieures et qui permet de détecter les objets qui ne
coupent pas complètement le parcours du faisceau ou qui n'absorbent que partiellement la lumière émise.
The invention proposes to produce a cominuting device which removes external influences and which makes it possible to detect objects which do not
do not completely cut the beam path or which only partially absorb the light emitted.

A cet effet, l'invention propose que
l'intensité lumineuse d'un bloc fonctionnel émettant la
lumière soit réglée en fonction des influences extérieures -de façon telle qu'une quantité uniforme, déterminée, de
lumière agisse sur le bloc fonctionnel sensible à la lumière. Dans une solution avantageuse, un bloc fonctionnel, sensible à la -lumière, règle,- par l'intermédiaire d'un amplificateur, l'intensité lumineuse du bloc fonctionnel émettant de la lumière vers la zone de travail
du bloc fonctionnel sensible à la lumière.
To this end, the invention proposes that
the light intensity of a functional block emitting the
light is adjusted according to external influences - in such a way that a uniform, determined quantity of
light acts on the light-sensitive functional block. In an advantageous solution, a functional block, sensitive to light, adjusts, - by means of an amplifier, the light intensity of the functional block emitting light towards the work area
of the light-sensitive functional block.

L'invention sera mieux comprise en
regard de la description ci-après et des dessins annexés
représentant un exemple de réalisation de l'invention,
dessins dans lesquels
- la figure 1 représente le schéma par
blocs des connexions,
- la figure 2 représente la commutation.
The invention will be better understood in
look at the description below and the attached drawings
representing an exemplary embodiment of the invention,
drawings in which
- Figure 1 shows the diagram by
connection blocks,
- Figure 2 shows the switching.

Suivant le schéma par blocs du. montage
que donne la figure 1, le bloc fonctionnel émetteur de
lumière 1 et le bloc fonctionnel sensible à la lumière
2 de la barrière lumineuse se trouvent sur le même axe
optique. Sur le parcours 8 du faisceau lumineux se trouve
l'objet 6 à enregistrer. A la suite du bloc fonctionnel
sensible à la lumière est placé un montage d'évaluation 3 Le bloc fonctionnel 5 sensible à la lumière enregistre la quantité de lumière extérieure et la transforme en un signal électrique.On règlera, avec ce signal, 1 intensité lumineuse du bloc fonctionnel 1 émetteur de lumière au moyen de l!amplificateur 4 monté à sa suite. I1 y aura avantage ici à ce que les blocs fonctionnels 2 et 5 sensibles à la lumière, soient disposés, de façon à etre soumis aux memes influences lumineuses extérieures.
Following the block diagram of. mounting
shown in Figure 1, the transmitter functional block
light 1 and the light-sensitive functional block
2 of the light barrier are on the same axis
optical. On the path 8 of the light beam is
object 6 to be saved. Following the functional block
light-sensitive is placed an evaluation assembly 3 The light-sensitive functional block 5 registers the amount of external light and transforms it into an electrical signal. With this signal, 1 light intensity of the functional block 1 emitter of light by means of amplifier 4 mounted after it. It will be advantageous here that the light-sensitive functional blocks 2 and 5 are arranged so as to be subjected to the same external light influences.

La figure 2 montre une solution avantageuse de réalisation du dispositif de commutation. FIG. 2 shows an advantageous solution for producing the switching device.

On détermine, au moyen de la résistance 11, le courant direct maximum de la diode 12 émettrice de lumière. Le courant qui passe par la diode 12 émettrice de lumière, et par suite l'intensité lumineuse de cette diode émettrice, est-réglé en fonction de la lumière extérieure 7 qui arrive sur le ph-ototransistor 9 Le domaine de travail du phototransistor 14 est ajusté par les résistances 13 et 15 de façon telle que si l'objet 6 est absent, il se produit une réponse du dispositif d'évaluation au point de commutation 16.  The maximum direct current of the light-emitting diode 12 is determined by means of the resistor 11. The current which passes through the light-emitting diode 12, and consequently the light intensity of this emitting diode, is adjusted according to the external light 7 which arrives on the ph-ototransistor 9 The field of work of the phototransistor 14 is adjusted by resistors 13 and 15 in such a way that if the object 6 is absent, there is a response from the evaluation device at switching point 16.

Claims (2)

REVENDICATIONS 10) Dispositif de commutation pour la régulation en fonction d'une lumière extérieure de barrières lumineuses, caractérisé en ce que l'intensité lumineuse dun bloc fonctionnel (1) émetteur de lumière est réglée en fonction des influences lumineuses extérieures (7) de façon telle qulil agit toujours en quantité de lumière déterminée constante sur un bloc fonctionnel (2) sensible à la lumière 10) Switching device for regulating light barriers as a function of external light, characterized in that the light intensity of a light emitting functional block (1) is adjusted as a function of external light influences (7) in such a way that it always acts in a fixed quantity of light constant on a light-sensitive functional block (2) 20) Dispositif de commutation suivant la revendication 1, caractérisé en ce qu'un bloc fonctionnel (5) sensible à la lumière régle llintensité lumineuse du bloc fonctionnel (1) émetteur de lumière au moyen d:un amplificateur (4)  20) Switching device according to claim 1, characterized in that a light-sensitive functional block (5) regulates the light intensity of the light-emitting functional block (1) by means of an amplifier (4).
FR8319865A 1983-01-13 1983-12-12 SWITCHING DEVICE FOR REGULATING FUNCTION OF EXTERIOR LIGHT OF LIGHT BARRIERS ON TEXTILE MACHINES Expired FR2539574B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DD24720483A DD212870A1 (en) 1983-01-13 1983-01-13 CIRCUIT ARRANGEMENT FOR LIGHT CURRENT CONTROL OF LIGHT CURRENTS

Publications (2)

Publication Number Publication Date
FR2539574A1 true FR2539574A1 (en) 1984-07-20
FR2539574B1 FR2539574B1 (en) 1986-12-26

Family

ID=5544360

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8319865A Expired FR2539574B1 (en) 1983-01-13 1983-12-12 SWITCHING DEVICE FOR REGULATING FUNCTION OF EXTERIOR LIGHT OF LIGHT BARRIERS ON TEXTILE MACHINES

Country Status (4)

Country Link
CH (1) CH663675A5 (en)
DD (1) DD212870A1 (en)
DE (1) DE3340877A1 (en)
FR (1) FR2539574B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3634508C1 (en) * 1986-10-09 1988-06-16 Rupert Fuerthbauer Optical filter with automatic control of the optical transmission

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236101A (en) * 1978-08-18 1980-11-25 Lutron Electronics Co., Inc. Light control system

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1097524B (en) * 1961-01-19 Deutsche Bundespost, vertreten durch den Präsidenten des Pernmeldetechmschen Zentralamts, Darmstadt Arrangement to compensate for the influence of a variable external radiation source on a radiation-electrical measuring or control path
DE2059010A1 (en) * 1970-12-01 1972-06-15 Alfons Endl Light barrier with constant response threshold
DE2059656A1 (en) * 1970-12-04 1972-06-29 Alfons Endl Light barrier with a circuit to keep the control shaft constant

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4236101A (en) * 1978-08-18 1980-11-25 Lutron Electronics Co., Inc. Light control system

Also Published As

Publication number Publication date
DD212870A1 (en) 1984-08-22
CH663675A5 (en) 1987-12-31
DE3340877A1 (en) 1984-07-19
FR2539574B1 (en) 1986-12-26

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