RO84005B1 - Method and apparatus for short-term measuring percentage medium speed variation at magnetic band rewinder - Google Patents

Method and apparatus for short-term measuring percentage medium speed variation at magnetic band rewinder

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Publication number
RO84005B1
RO84005B1 RO108800A RO10880082A RO84005B1 RO 84005 B1 RO84005 B1 RO 84005B1 RO 108800 A RO108800 A RO 108800A RO 10880082 A RO10880082 A RO 10880082A RO 84005 B1 RO84005 B1 RO 84005B1
Authority
RO
Romania
Prior art keywords
bandwidth
band
short
value
average
Prior art date
Application number
RO108800A
Other languages
Romanian (ro)
Other versions
RO84005A2 (en
Inventor
Armand Segal
Petru Cernicica
Original Assignee
Armand Segal
Petru Cernicica
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 Armand Segal, Petru Cernicica filed Critical Armand Segal
Priority to RO108800A priority Critical patent/RO84005B1/en
Publication of RO84005A2 publication Critical patent/RO84005A2/en
Publication of RO84005B1 publication Critical patent/RO84005B1/en

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  • Measuring Magnetic Variables (AREA)

Abstract

Inventia se refera la o metoda si la un aparat, conform carora o banda-etalon cu tranzitii de flux echidistante este citita de derulorul testat. Aparatul masoara, cu ajutorul impulsurilor unui ceas intern, rapid de precizie durata de parcurgere a portiunii de banda-etalon pe care se face media pe termen scurt. Ea este de 4 spatii de bit la deruloarele de banda digitala. Numarul de impulsuri de ceas de masura, corespunzator portiunii pe care se face media, este divizat printr-o valoare dependenta de densitatea de înregistrare a benzii-etalon, de frecventa ceasului de masura, de viteza de micsorare a benzii si de lungimea portiunii de banda pe care se face media pe termen scurt. rezultatul divizarii este memorat într-un numarator al carui continut maxim si minim se retine. Din valoarea maxima rezultata direct valoarea minima a abaterii procentuale a vitezei, iar din valoarea minima rezulta valoarea maxima a abaterii procentuale a vitezei. Pentru a se putea masura diferite tipuri de deruloare de banda, blocul de divizare permite împartirea cu valori programabile de utilizator.The invention relates to a method and to an apparatus according to which a calibration band with equidistant flux transitions is read by the test strip. The device measures, with the help of an internal clock pulse, the accuracy of the length of the run of the standard band on which the average is made in the short term. It has 4 bit spaces on the digital tape scrollbars. The number of measuring clock pulses corresponding to the portion to be averaged is divided by a value dependent on the recording bandwidth density, the frequency of the measuring clock, the bandwidth reduction velocity and the length of the band portion which is the average in the short term. the result of the division is stored in a count whose maximum and minimum content is retained. From the maximum value resulting directly the minimum value of the percentage deviation of the speed, and from the minimum value the maximum value of the percentage deviation of the speed results. To be able to measure different types of bandwidth, the partition block allows for partitioning with programmable user values.

RO108800A 1982-10-15 1982-10-15 Method and apparatus for short-term measuring percentage medium speed variation at magnetic band rewinder RO84005B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO108800A RO84005B1 (en) 1982-10-15 1982-10-15 Method and apparatus for short-term measuring percentage medium speed variation at magnetic band rewinder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO108800A RO84005B1 (en) 1982-10-15 1982-10-15 Method and apparatus for short-term measuring percentage medium speed variation at magnetic band rewinder

Publications (2)

Publication Number Publication Date
RO84005A2 RO84005A2 (en) 1984-04-12
RO84005B1 true RO84005B1 (en) 1984-05-30

Family

ID=20112110

Family Applications (1)

Application Number Title Priority Date Filing Date
RO108800A RO84005B1 (en) 1982-10-15 1982-10-15 Method and apparatus for short-term measuring percentage medium speed variation at magnetic band rewinder

Country Status (1)

Country Link
RO (1) RO84005B1 (en)

Also Published As

Publication number Publication date
RO84005A2 (en) 1984-04-12

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