DE1108807B - Light barrier built-in element - Google Patents
Light barrier built-in elementInfo
- Publication number
- DE1108807B DE1108807B DEK36834A DEK0036834A DE1108807B DE 1108807 B DE1108807 B DE 1108807B DE K36834 A DEK36834 A DE K36834A DE K0036834 A DEK0036834 A DE K0036834A DE 1108807 B DE1108807 B DE 1108807B
- Authority
- DE
- Germany
- Prior art keywords
- light
- tube
- incandescent lamp
- light barrier
- photodiode
- 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.)
- Pending
Links
- 230000004888 barrier function Effects 0.000 title claims description 13
- 230000000694 effects Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000009420 retrofitting Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/08—Pointers; Scales; Scale illumination
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
- G01D5/32—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light
- G01D5/34—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with attenuation or whole or partial obturation of beams of light the beams of light being detected by photocells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/22—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil
- H01H47/24—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for supplying energising current for relay coil having light-sensitive input
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Measuring Devices (AREA)
Description
Lichtschranken-Einbauelement Die Erfindung betrifft eine Lichtschrankenvorrichtung, die zur Auslösung von Schaltvorgängen dient und die als fertiges Bauelement zum Einbau in Meßinstrumente, vorzugsweise in normale elektrische Anzeigegeräte, insbesondere in Profilinstrumentenausführung, vorgesehen ist, um diese in einfacher Weise in Regler umzubauen.Light barrier built-in element The invention relates to a light barrier device, which is used to trigger switching processes and which is used as a finished component for Installation in measuring instruments, preferably in normal electrical display devices, in particular in profile instrument design, is provided in order to convert this in a simple manner Rebuilding the regulator.
In modernen Betriebsüberwachungsanlagen werden zahlreiche Regler benutzt, die zur Konstanthaltung von elektrisch gemessenen Größen dienen. Neben Reglern mit rein mechanisch betätigten Regeleinrichtungen, die jedoch wegen ihrer Trägheit und mechanischen Störungsanfälligkeit immer mehr an Bedeutung verlieren, werden heute vielfach solche mit elektronisch oder magnetisch betätigten Zwischengliedern benutzt. Numerous regulators are used in modern operational monitoring systems used, which are used to keep electrically measured quantities constant. Next to Controllers with purely mechanically operated control devices, which, however, because of their Inertia and mechanical failure susceptibility are becoming less and less important, are now often those with electronically or magnetically operated links used.
Diese zuletzt genannten Anordnungen sind jedoch zum Teil recht aufwendig und verlangen neben dem eigentlichen Anzeigegerät je nach Aufgabenzweck mehr oder weniger ausgedehnte Hilfsgeräte wie Verstärker, Oszillatoren usw., die in zusätzlichen Gehäusen untergebracht werden müssen. However, these last-mentioned arrangements are in some cases quite complex and require more or more in addition to the actual display device, depending on the purpose of the task less extensive auxiliary devices such as amplifiers, oscillators, etc., which are in additional Housings must be accommodated.
Es ist beispielsweise ein optisch-elektrisches Einstell- und Kontrollgerät bekanntgeworden, das im wesentlichen eine Fotozellenanordnung mit einer nachgeschalteten monostabilen Kippschaltung darstellt. Dieses Gerät ist jedoch räumlich so umfangreich, daß es sich in einem elektrischen Anzeigeinstrument nicht unterbringen läßt. Ferner ist eine Lichtschranke ebenfalls bekanntgeworden, die durch eine Fahne am Instrumentenzeiger unterbrochen wird. Es werden jedoch bei dieser Anordnung so große Bauteile verwendet, daß sie für den vorgesehenen Zweck nicht geeignet ist. It is, for example, an optical-electrical setting and control device became known, which is essentially a photocell arrangement with a downstream represents monostable multivibrator. However, this device is spatially so extensive that that it cannot be accommodated in an electrical display instrument. Further a light barrier has also become known, which is indicated by a flag on the instrument pointer is interrupted. However, such large components are used in this arrangement that that it is not suitable for the intended purpose.
Eine bekannte Anordnung, die mit Teilen, die vor und hinter der Skala liegen, arbeitet, stellt ebenfalls keine geschlossene Einheit dar und kann für einen nachträglichen Einbau nicht verwendet werden. A well-known arrangement, the one with parts in front of and behind the scale lying, working, is also not a closed unit and can for one retrofitting cannot be used.
Eine weitere bekannte Einrichtung benutzt als lichtempfindliche Zelle eine Kristallfotozelle, die innerhalb eines Rohres angeordnet ist. Auch hier handelt es sich um eine verhältnismäßig große Einheit, die nicht für den angegebenen Zweck geeignet ist. Another known device is used as a photosensitive cell a crystal photocell placed within a tube. Also here acts it is a relatively large unit that is not used for its stated purpose suitable is.
Erfindungsgemäß ist bei einer Lichtschrankenvorrichtung, in der die Lichtquelle, Lichtführung und Lichtempfänger in einer Einheit zusammengebaut sind, die Lichtquelle als Glühlampe an einem Ende eines als Lichtführung dienenden Rohres angebracht, und ein vor dem freien Ende des Rohres sitzender Hohlspiegel wirft das von der Glühlampe kommende Licht auf eine außen am Rohrende angeordnete Fotodiode. According to the invention in a light barrier device in which the Light source, light guide and light receiver are assembled in one unit, the light source as an incandescent lamp at one end of a tube serving as a light guide attached, and a concave mirror sitting in front of the free end of the tube throws that Light coming from the incandescent lamp onto a photodiode arranged on the outside of the tube end.
Durch die Möglichkeit eines nachträglichen Umbaues eines normalen Anzeigegerätes in einen Regler wird mit diesem Lichtschranken-Einbauelement auf dem Gebiete der Regeleinrichtungen eine bereits seit längerer Zeit bestehende Lücke geschlossen. With the option of retrospectively converting a normal one Display device in a controller is based on this light barrier built-in element a long-standing gap in the field of control systems closed.
Ein Ausführungsbeispiel der Erfindung ist in der Zeichnung dargestellt, in der Fig. 1 den Aufbau des Lichtschranken-Einbauelementes und Fig. 2 eine Möglichkeit des Einbaues in ein Anzeigegerät zeigt. An embodiment of the invention is shown in the drawing, 1 shows the structure of the light barrier built-in element and FIG. 2 shows one possibility the installation in a display device shows.
Das Lichtschranken-Einbauelement besteht aus einem Rohr 1, das zur besseren Lichtausbeute innen mit einer spiegelnden Schicht versehen ist und in dem an dem einen Ende eine Glühlampe 2 eingesetzt ist, die zur Erzeugung eines konzentrierten Lichtstrahls mit einer Linse versehen ist. Am anderen freien Ende des Rohres 1 ist ein Hohlspiegel 3 angeordnet, der den von der Glühlampe 2 kommenden Lichtstrahl auf eine Fotodiode 4 von sehr kleinen Abmessungen richtet. Diese Fotodiode 4 ist mit dem Rohr 1 fest verbunden. Der Zeiger 5 eines elektrischen Anzeigegerätes trägt eine Fahne 6, die in den Strahlengang des aus dem Hohlspiegel 3 kommenden Lichtstrahles als Lichtschranke eingreift. Das Rohr 1 ist auf einem Trägerarm 7 befestigt. The light barrier built-in element consists of a tube 1, which is used to better light output is provided inside with a reflective layer and in which at one end an incandescent lamp 2 is used, which is used to generate a concentrated Light beam is provided with a lens. At the other free end of the tube 1 is a concave mirror 3 is arranged, which the light beam coming from the incandescent lamp 2 aimed at a photodiode 4 of very small dimensions. This photodiode 4 is firmly connected to the tube 1. The pointer 5 of an electrical display device carries a flag 6 which is in the beam path of the light beam coming from the concave mirror 3 intervenes as a light barrier. The tube 1 is attached to a support arm 7.
Die Arbeitsweise des Lichtschranken-Einbauelementes ist in Fig. 2 gezeigt. Der Regelbereich ist durch zwei Einbauelemente begrenzt. Beim Eintritt der am Instrumentenzeiger 5 befestigten Fahne 6 in den Raum zwischen Rohrende und Hohlspiegel 3 des ersten Einbauelementes wird der Lichtstrahl von der Glühlampe 2 zur Fotodiode 4 unterbrochen und hierdurch ein Schalteffekt ausgelöst. Ein zweiter Schalteffekt wird ausgelöst, wenn die Fahne 6 des Instrumentenzeigers 5 in den Lichtstrahl des zweiten Einbauelementes tritt. The mode of operation of the light barrier built-in element is shown in FIG. 2 shown. The control range is limited by two built-in elements. Upon entry the attached to the instrument pointer 5 flag 6 in the space between the pipe end and Concave mirror 3 of the first built-in element is the light beam from the incandescent lamp 2 interrupted to the photodiode 4 and this triggered a switching effect. A second Switching effect is triggered when the flag 6 of the instrument pointer 5 enters the light beam of the second built-in element.
Die Einstellung des Regelbereiches erfolgt durch Drehung der Lichtschranken-Einbauelemente auf ihren Trägerarmen 7 um die Achse des Instrumentenzeigers 5. The control range is set by turning the light barrier built-in elements on their support arms 7 around the axis of the instrument pointer 5.
Da die Lichtschranke vorzugsweise zum Umbau von normalen Profilmeßinstrumenten zu Reglern benutzt werden kann, können auch die unter Umständen erforderlichen Transistorenverstärker wegen ihrer ebenfalls sehr kleinen Abmessungen mit in den Meßinstrumentengehäusen untergebracht werden. Since the light barrier is preferably used to convert normal profile measuring instruments can be used for regulators, the transistor amplifiers that may be required can also be used because of their also very small dimensions with in the measuring instrument housings be accommodated.
Die Verwendung des beschriebenen Bauelementes gestattet somit, ein normales elektrisches Anzeigegerät in einfacher Weise in ein fast trägheitslos arbeitendes Regelgerät umzubauen. The use of the component described thus allows a normal electrical display device in a simple manner into an almost inertia-free one Modify control device.
Claims (3)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK36834A DE1108807B (en) | 1959-01-30 | 1959-01-30 | Light barrier built-in element |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEK36834A DE1108807B (en) | 1959-01-30 | 1959-01-30 | Light barrier built-in element |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1108807B true DE1108807B (en) | 1961-06-15 |
Family
ID=7220814
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEK36834A Pending DE1108807B (en) | 1959-01-30 | 1959-01-30 | Light barrier built-in element |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1108807B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1242380B (en) * | 1965-02-26 | 1967-06-15 | Gossen & Co Gmbh P | Measuring instrument with photoelectric contact by means of photo resistors |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR699791A (en) * | 1929-06-24 | 1931-02-19 | Thomson Houston Comp Francaise | Improvements to assemblies using electronic relays |
GB368775A (en) * | 1929-12-03 | 1932-03-03 | Gen Electric | Improvements in and relating to telemetering systems |
FR39825E (en) * | 1931-02-19 | 1932-03-18 | Thomson Houston Comp Francaise | Improvements to assemblies using electronic relays |
-
1959
- 1959-01-30 DE DEK36834A patent/DE1108807B/en active Pending
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR699791A (en) * | 1929-06-24 | 1931-02-19 | Thomson Houston Comp Francaise | Improvements to assemblies using electronic relays |
GB368775A (en) * | 1929-12-03 | 1932-03-03 | Gen Electric | Improvements in and relating to telemetering systems |
FR39825E (en) * | 1931-02-19 | 1932-03-18 | Thomson Houston Comp Francaise | Improvements to assemblies using electronic relays |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1242380B (en) * | 1965-02-26 | 1967-06-15 | Gossen & Co Gmbh P | Measuring instrument with photoelectric contact by means of photo resistors |
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