RU94037732A - Device for measurement of mechanical stresses - Google Patents

Device for measurement of mechanical stresses

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Publication number
RU94037732A
RU94037732A RU94037732/28A RU94037732A RU94037732A RU 94037732 A RU94037732 A RU 94037732A RU 94037732/28 A RU94037732/28 A RU 94037732/28A RU 94037732 A RU94037732 A RU 94037732A RU 94037732 A RU94037732 A RU 94037732A
Authority
RU
Russia
Prior art keywords
input
output
amplifier
mixer
phase
Prior art date
Application number
RU94037732/28A
Other languages
Russian (ru)
Other versions
RU2079825C1 (en
Inventor
С.В. Жуков
В.С. Жуков
Original Assignee
Индивидуальное частное предприятие Фирма "Дименстест"
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 Индивидуальное частное предприятие Фирма "Дименстест" filed Critical Индивидуальное частное предприятие Фирма "Дименстест"
Priority to RU94037732/28A priority Critical patent/RU2079825C1/en
Publication of RU94037732A publication Critical patent/RU94037732A/en
Application granted granted Critical
Publication of RU2079825C1 publication Critical patent/RU2079825C1/en

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  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)

Abstract

FIELD: nondestructive test of constructions with the aid of electromagnetic fields; it can be realized at operative quality control of metalworks, for example, by measurement of residual welding and other stresses. SUBSTANCE: the known device for measurement of stresses in metalware is provided with mixer 9 connected between measuring winding 5 and input of amplifier 6, three phase shifters 10, 11 and 15 connected to the output of generator 1, and three amplifiers 12, 13 and 16, the first amplifier (12) is connected between the output of phase shifter 10 and second input of mixer 9, and the second amplifier (13) is connected between the output of phase shifter 15 and third input of mixer 9, as well as band-pass filter 14 connected between amplifier 6 and first input of phase discriminator 7, and attenuator 17 connected between the output of phase discriminator 7 and input of indicator 8. EFFECT: enhanced reproducibility and accuracy, expander range of measurements. 1 cl, 2 dwg

Claims (1)

Изобретение относится к области испытания конструкций без их разрушения с помощью электромагнитных полей. Оно может быть реализовано при оперативном контроле качества металлических конструкций, например, путем измерения остаточных сварочных и иных механических напряжений. 3aдачей, решаемой в изобретении, является повышение воспроизводимости и точности, а также расширение диапазона измерений. Для этого устройство для измерения механических напряжений в металлических изделиях снабжено смесителем 9, включенным между измерительной обмоткой 5 и входом усилителя 6, тремя фазовращателями 10, 11 и 15, подключенными к выходу генератора 1, и тремя усилителями 12, 13 и 16, первый 12 из которых включен между выходом фазовращателя 10 и вторым входом смесителя 9, а другой усилитель 13 включен между выходом фазовращателя 11 и вторым входом фазового детектора 7, третий усилитель 16 включен между выходом фазовращателя 15 и третьим входом смесителя 9, а также полосовым фильтром 14, включенным между усилителем 6 и первым входом фазового детектора 7, и аттеньюатором 17, включенным между выходом фазового детектора 7 и входом индикатора 8.
Figure 00000001
The invention relates to the field of testing structures without destroying them using electromagnetic fields. It can be implemented with operational quality control of metal structures, for example, by measuring residual welding and other mechanical stresses. The task solved in the invention is to increase reproducibility and accuracy, as well as expanding the range of measurements. For this, the device for measuring mechanical stresses in metal products is equipped with a mixer 9 connected between the measuring winding 5 and the input of the amplifier 6, three phase shifters 10, 11 and 15 connected to the output of the generator 1, and three amplifiers 12, 13 and 16, the first 12 of which is connected between the output of the phase shifter 10 and the second input of the mixer 9, and another amplifier 13 is connected between the output of the phase shifter 11 and the second input of the phase detector 7, the third amplifier 16 is connected between the output of the phase shifter 15 and the third input of the mixer 9, as well as losovym filter 14 connected between the amplifier 6 and the first input of the phase detector 7 and the attenuator 17, connected between the output of the phase detector 7, 8 and the input indicator.
Figure 00000001
RU94037732/28A 1994-09-30 1994-09-30 Gear measuring mechanical stresses in metal articles RU2079825C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU94037732/28A RU2079825C1 (en) 1994-09-30 1994-09-30 Gear measuring mechanical stresses in metal articles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU94037732/28A RU2079825C1 (en) 1994-09-30 1994-09-30 Gear measuring mechanical stresses in metal articles

Publications (2)

Publication Number Publication Date
RU94037732A true RU94037732A (en) 1996-07-27
RU2079825C1 RU2079825C1 (en) 1997-05-20

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
RU94037732/28A RU2079825C1 (en) 1994-09-30 1994-09-30 Gear measuring mechanical stresses in metal articles

Country Status (1)

Country Link
RU (1) RU2079825C1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2747791C1 (en) * 2020-10-20 2021-05-14 Игорь Сергеевич Колесников System and method for non-contact determination of mechanical stresses in pipeline

Also Published As

Publication number Publication date
RU2079825C1 (en) 1997-05-20

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MM4A The patent is invalid due to non-payment of fees

Effective date: 20051001