MD3897G2 - Process for measuring the section of an insulated wire in the casting process - Google Patents

Process for measuring the section of an insulated wire in the casting process

Info

Publication number
MD3897G2
MD3897G2 MDA20070269A MD20070269A MD3897G2 MD 3897 G2 MD3897 G2 MD 3897G2 MD A20070269 A MDA20070269 A MD A20070269A MD 20070269 A MD20070269 A MD 20070269A MD 3897 G2 MD3897 G2 MD 3897G2
Authority
MD
Moldova
Prior art keywords
microwire
bobbin
cast
standard
section
Prior art date
Application number
MDA20070269A
Other languages
Romanian (ro)
Russian (ru)
Other versions
MD3897F1 (en
Inventor
Николае ДИМИТРАКИ
Original Assignee
Технический университет Молдовы
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 Технический университет Молдовы filed Critical Технический университет Молдовы
Priority to MDA20070269A priority Critical patent/MD3897G2/en
Publication of MD3897F1 publication Critical patent/MD3897F1/en
Publication of MD3897G2 publication Critical patent/MD3897G2/en

Links

Abstract

The invention relates to the measurement technology and can be used for casting insulated conductors or semiconductors.The process for measuring the section of an insulated wire in the casting process, for example of a glass-insulated microwire, consists in its drawing from a metal preform introduced into a tube of insulating material in suspension state with a high-frequency electromagnetic field and reeling of the cast microwire on a metal carcass, forming a bobbin with cast microwire. Measuring of the microwire section is carried out by compensating the equivalent electrical resistance Zx of the bobbin with cast microwire for the equivalent electrical resistance Z0 of the bobbin with standard microwire, which is connected in parallel to the differential input of an operational amplifier and in series with a branch consisting of the connected in series measured microwire portion and bobbin with cast microwire. Said branch is connected to the noninverting input of the operational amplifier. The series circuit, consisting of the bobbin with standard microwire and the series branch, consisting of the measured microwire portion and the bobbin with cast microwire, is connected to a sinusoidal current source of predetermined value, where the current i(t) from the source, passing through the series circuit, forms voltage drops Ux=Zxi(t) across the bobbin with cast microwire, U0=Z0i(t) across the bobbin with standard microwire and Ur=i(t)rl across the measured microwire portion. The voltage U0 is divided by π through the operational amplifier and is repeated by value at its output, where it is summed up with the sum of voltages Ux+Ur, forming the measured total voltage UΣ=-U0+Ur+Ux=i(t)[-Z0+rl+Zx], which when Zx=Z0, i(t)=const and l=const is equal to i(t)rl, which, in its turn, is proportional to the resistance r and inversely proportional to the section of the standard microwire Ur ~ S0 -1.
MDA20070269A 2007-10-08 2007-10-08 Process for measuring the section of an insulated wire in the casting process MD3897G2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MDA20070269A MD3897G2 (en) 2007-10-08 2007-10-08 Process for measuring the section of an insulated wire in the casting process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
MDA20070269A MD3897G2 (en) 2007-10-08 2007-10-08 Process for measuring the section of an insulated wire in the casting process

Publications (2)

Publication Number Publication Date
MD3897F1 MD3897F1 (en) 2009-04-30
MD3897G2 true MD3897G2 (en) 2010-05-31

Family

ID=40901729

Family Applications (1)

Application Number Title Priority Date Filing Date
MDA20070269A MD3897G2 (en) 2007-10-08 2007-10-08 Process for measuring the section of an insulated wire in the casting process

Country Status (1)

Country Link
MD (1) MD3897G2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD690Z (en) * 2012-09-10 2014-09-30 Технический университет Молдовы Method for measuring the cross-section of a wire in the casting process

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD3985G2 (en) * 2007-10-08 2010-06-30 Технический университет Молдовы Installation for manufacturing of glass-insulated microwire
MD3961G2 (en) * 2008-01-09 2010-04-30 Технический университет Молдовы Device for measuring the linear resistance of the glass-insulated wire in the casting process
MD173Z (en) * 2008-07-25 2010-10-31 Институт Электронной Инженерии И Промышленных Технологий Академии Наук Молдовы Process for the manufacture of bifilar microwire
MD4092C1 (en) * 2009-09-24 2011-08-31 Технический университет Молдовы Microwire casting installation
MD4100C1 (en) * 2009-09-24 2011-09-30 Технический университет Молдовы Method for manufacturing a resistor from a conductor
MD280Z (en) * 2009-12-22 2011-04-30 Институт Электронной Инженерии И Промышленных Технологий Академии Наук Молдовы Process for manufacture of Te microwire in glass insulation

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU365738A1 (en) * 1970-01-12 1973-01-08 DEVICE FOR CONTROLLING OF RUNNING RESISTANCE OF THE MICROPRODUCT IN GLASS INSULATION IN THE PROCESS OF CASTING
MD2249G2 (en) * 2003-02-11 2004-02-29 Технический университет Молдовы Device for measuring the resistance of the elements from the isolated condcutor in the winding process
MD2645G2 (en) * 2004-07-16 2005-08-31 Технический университет Молдовы Device for measuring the linear resistance of the insulated wire
MD3216G2 (en) * 2006-03-21 2007-07-31 Технический университет Молдовы Device for measuring the linear resistance of the insulated wire

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU365738A1 (en) * 1970-01-12 1973-01-08 DEVICE FOR CONTROLLING OF RUNNING RESISTANCE OF THE MICROPRODUCT IN GLASS INSULATION IN THE PROCESS OF CASTING
MD2249G2 (en) * 2003-02-11 2004-02-29 Технический университет Молдовы Device for measuring the resistance of the elements from the isolated condcutor in the winding process
MD2645G2 (en) * 2004-07-16 2005-08-31 Технический университет Молдовы Device for measuring the linear resistance of the insulated wire
MD3216G2 (en) * 2006-03-21 2007-07-31 Технический университет Молдовы Device for measuring the linear resistance of the insulated wire

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
Андреев В. А., Космин П. Л., Тудоровский. Измерение параметров микропровода на СВЧ. Сборник Микропровод и приборы сопротивления. Кишинев, Картя молдовеняскэ, вып. 8, 1971 *
Космин П. Л., Филлипов Н. Н. Бесконтактные измерения диаметров жил проводов, микропроводов и коаксиальных кабелей. Измерительная техника, 1967, № 9 *
Космин П. Л., Филлипов Н. Н. К вопросу о неконтактном измерении поперечного сечения жилы микропровода в стеклянной изоляции на СВЧ. Сборник микропровод и приборы сопротивления. Кишинев, Картя молдовеняскэ, вып. 5, 1967 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MD690Z (en) * 2012-09-10 2014-09-30 Технический университет Молдовы Method for measuring the cross-section of a wire in the casting process

Also Published As

Publication number Publication date
MD3897F1 (en) 2009-04-30

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Legal Events

Date Code Title Description
FG4A Patent for invention issued
KA4A Patent for invention lapsed due to non-payment of fees (with right of restoration)
MM4A Patent for invention definitely lapsed due to non-payment of fees