DE846555C - Circuit arrangement for a measuring device for determining the quality of molten steel - Google Patents
Circuit arrangement for a measuring device for determining the quality of molten steelInfo
- Publication number
- DE846555C DE846555C DEP39427A DEP0039427A DE846555C DE 846555 C DE846555 C DE 846555C DE P39427 A DEP39427 A DE P39427A DE P0039427 A DEP0039427 A DE P0039427A DE 846555 C DE846555 C DE 846555C
- Authority
- DE
- Germany
- Prior art keywords
- tube
- quality
- color temperature
- steel
- braun
- 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.)
- Expired
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 7
- 239000010959 steel Substances 0.000 title claims description 7
- 239000000155 melt Substances 0.000 claims description 7
- 238000010586 diagram Methods 0.000 claims description 4
- 238000010894 electron beam technology Methods 0.000 claims description 3
- 239000000161 steel melt Substances 0.000 claims description 2
- 230000001105 regulatory effect Effects 0.000 claims 1
- 230000005855 radiation Effects 0.000 description 8
- 238000010309 melting process Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/60—Radiation pyrometry, e.g. infrared or optical thermometry using determination of colour temperature
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/0037—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids
- G01J5/004—Radiation pyrometry, e.g. infrared or optical thermometry for sensing the heat emitted by liquids by molten metals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/025—Interfacing a pyrometer to an external device or network; User interface
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/02—Constructional details
- G01J5/06—Arrangements for eliminating effects of disturbing radiation; Arrangements for compensating changes in sensitivity
- G01J2005/066—Differential arrangement, i.e. sensitive/not sensitive
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Radiation Pyrometers (AREA)
Description
Es ist bekannt. daß inan aus der s-allren Temperatur und dem Strahlungskoeffizienten einer Stahlschmelze wichtige Schlüsse auf die Güte des Stahls zichen kann. Auf Grund dieser Erkenntnis wurden von C. Kreutzer in einem Diagramm, bei welchem als Abszisse die wahre Temperatur und als Ordinate der Strahlungskoeffizient eingetragen wird. verschieden Gütefelder abgegrenzt. Es ist nun .\ufgalie des Stahlwerks, deii Schmelzvorgang so zu führen, daß der sich aus wahrer Temperatur und Strahlungskoeffizeint ergebende Schnittpunkt in dem Feld, der bestmöglichen Stahleigenschaften liegt. Wahre Temperatur und Strahlungskeoffizient der Schmelze werden dabei mit einem besonderen Meßgerät (Bioptix) bestimmt, dessen richtige Handhabung an den Beobachter große Auforderungen stellt. It is known. that inan from the s-allren temperature and the radiation coefficient a steel melt can draw important conclusions about the quality of the steel. Because of this finding was made by C. Kreutzer in a diagram in which the abscissa the true temperature and the radiation coefficient as the ordinate. different quality fields delimited. It is now the case of the steelworks, the melting process in such a way that the one resulting from the true temperature and radiation coefficient Intersection point in the field with the best possible steel properties. True temperature and radiation coefficient of the melt are measured with a special measuring device (Bioptix) determined its correct handling to be a major challenge for the observer represents.
Es wurde bereits der noch nicht zum Stand der Technik gehörende Vorschlag gemacht, die subjektive Bestimmung mittels des Bioptix, die unter Umständen mit nicht geringen Fehlern behaftet sein kann, durch Verwendung eines vollautomatischen Meßgeräts zu ersetzen. Zu diesem Zweck wird mit Hilfe der Farbtemperatur, die beispielsweise aus dem Verhältnis zweier Strahlungsintensitäten mit Hilfe zweier Photozellen ermittelt wird, und der Differenz zwischen wahrer Temperatur und schwarzer Temperatur (Strahlungskoeffizient) der Elektrniieiistrahl einer Braunschen Röhre abgelenkt, und auf dem Leuchtschirm der Röhre, auf dem das Gütediagramm anch Kreutzer abgebildet ist, erscheiiit der Leuchtpunkt in dem Gütefeld, das der wahren Temperatur und dem Strahlungskoeffizientell des Stahls jeweils entspricht. The proposal not yet belonging to the state of the art has already been made made the subjective determination by means of the Bioptix, which may be with can be afflicted with not minor errors by using a fully automatic To replace the measuring device. For this purpose, with the help of the color temperature, for example determined from the ratio of two radiation intensities with the help of two photocells and the difference between true temperature and black temperature (radiation coefficient) the electrical beam of a Braun tube deflected, and on the luminescent screen of the tube on which the quality diagram is also shown by Kreutzer, appears Luminous point in the quality field, that of the true temperature and the radiation coefficient of the steel corresponds in each case.
Die vorliegende Erfindung betrifft eine Schaltanordnung für die Durchführung der genannten Aufgabe. Sie macht dabei von den in der Rundfunktechnik bekannten Regelröhren Gebrauch. Mit Hilfe dieser Röhren, die eine exponentielle Beziehung zwischen Gitterspannung und Anodenstrom aufweisen, kann die Farbtemperatur. die sich zuiiächst als der Logarithmus des Quotienten der beiden Photoströme ergibt, in die Differenz der entsprechenden Anodenströme umgewandelt werden, wodurch die Lösung der ogigen Aufgabe sehr erleichtert wird. The present invention relates to a switching arrangement for implementation the task mentioned. In doing so, it makes of the well-known in broadcast technology Control tubes use. With the help of these tubes that have an exponential relationship between grid voltage and anode current, the color temperature. the results as the logarithm of the quotient of the two photocurrents, be converted into the difference of the corresponding anode currents, whereby the Solving the above task is made much easier.
Die Shaltungsanordnung nach der Erfindung ist in der Abbildung dargestellt und wird im folgenden n.iller beschrieben. F1 und F sind die beiden Photozel leii, auf welche die Strahlung der zu untersuchenden Schmelze einwirkt. In den Photostromkreisen leigen die beiden hochohmwiderstände R1 und R2. The circuit arrangement according to the invention is shown in the figure and is described in the following n.iller. F1 and F are the two Photozel leii, on which the radiation of the melt to be examined acts. In the photo circuits The two high-resistance resistors R1 and R2 are located.
I3ie an ihnen erzeugten Spannungsabfälle steuern die Anodenströme der beiden Regelröhren E1 und E2, bei denen eine exponentielle Beziehung zwischen Gitterspannung und Anodenstrom besteht. Im Verbindungszweig der beiden Anodenstromkreise leigen die horizontalen Ablenkplatten der Braunschen Röhre B, und es ist somit die horizontale Ablenkung des Elektronenstrahls ein Maß für die Farbtemperatur der Schmelze, Ferner wird die Farbtemperatur bestimmt durch eine Röhrenvorlmeterschaltung (umgekehrtes Röhrenvoltnieter) mittels Röhre E3 und kann am Instrument A abgelesen werden. Die der Farbtemperatur entsprechende Spannung, abgegriffen am Widerstand R5, ist an die eine Platte des vertikalen Ablenksystems der Braunschen Röhre gelegt. An der anderen Platte liegt die am Widerstand R3 abgegriffene Spannung, welche der mittels der Photozelle R1 und der Regelröhre E1 bestimmten schwarzen Temperatur der Schmelze entspricht.The voltage drops generated across them control the anode currents of the two control tubes E1 and E2, where there is an exponential relationship between Grid voltage and anode current. In the branch connecting the two anode circuits le the horizontal baffles of Braun's tube B, and thus it is the horizontal deflection of the electron beam a measure of the color temperature of the melt, Furthermore, the color temperature is determined by a tube pre-meter circuit (reverse Tube volt riveter) using tube E3 and can be read on instrument A. the The voltage corresponding to the color temperature, tapped at resistor R5, is on one plate of the vertical deflection system of the Braun tube. At the the other plate is the voltage tapped at resistor R3, which the means the photocell R1 and the control tube E1 determined the black temperature of the melt is equivalent to.
Die vertikale Ablenkung des Elektronenstrahls der Braunschen Röhre ist somit ein Maß für die Differenz zwischen der Farbtemperatur und der schwarzen Temperatur (Strablungskoeffizient) der Schmelze.The vertical deflection of the electron beam of the Braun tube is thus a measure of the difference between the color temperature and the black Temperature (disturbance coefficient) of the melt.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP39427A DE846555C (en) | 1949-04-10 | 1949-04-10 | Circuit arrangement for a measuring device for determining the quality of molten steel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEP39427A DE846555C (en) | 1949-04-10 | 1949-04-10 | Circuit arrangement for a measuring device for determining the quality of molten steel |
Publications (1)
Publication Number | Publication Date |
---|---|
DE846555C true DE846555C (en) | 1952-08-14 |
Family
ID=7376504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEP39427A Expired DE846555C (en) | 1949-04-10 | 1949-04-10 | Circuit arrangement for a measuring device for determining the quality of molten steel |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE846555C (en) |
-
1949
- 1949-04-10 DE DEP39427A patent/DE846555C/en not_active Expired
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