SU769311A1

SU769311A1 - Method of measuring metallic coating thickness

Info

Publication number: SU769311A1
Application number: SU782668677A
Authority: SU
Inventors: Эдуард Андреевич Сахно; Константин Георгиевич Богинский; Мария Александровна Кускова
Original assignee: Предприятие П/Я В-2438
Priority date: 1978-09-28
Filing date: 1978-09-28
Publication date: 1980-10-07

Description

образовател в элект.ролровод щую жидкость . Образец-свидетель 11 устанавливают в канале 12 преобразовател 4.forming an electrically conductive liquid. Sample witness 11 is installed in channel 12 of the transducer 4.

Питание преобразователей 3 -и 4 осуществл етс от генераторов Ш и 14, сигнал преобразователей усиливаетс усилител ми 16 и 16 и регистрируетс индикаторами /7 и 1-8.The power supply of converters 3 - and 4 is carried out from generators W and 14, the signal of converters is amplified by amplifiers 16 and 16, and is registered by indicators / 7 and 1-8.

Способ осуществл етс следующим образом .The method is carried out as follows.

Трансформаторные преобразователи 3 и 4 устанавливают в / -с раствором .2 и с покрываемы.ми издели ми (да чертеже ,не показаны). Образец-свидетель 1.1 из неэлектропровод щего материала помещают в канал 12 преобразовател 4. На об (МОТКИ 5 и б возбуждени подают низкочастотное напр жение -питани от генераторов 13 и J4. Через жидкостной «онтур св зи на измерительной обмотке 7 .наводитс сигнал, ;пропорцио,нальный сопротивлению жидкостного контура св зи, а ,на измерительной обмотке 8 - сигнал, пропор|циональный сопротивлению жидкостного ко,нтура .св зи и сопротивлению наносимого на образец-свидетель покрыти .Transformer converters 3 and 4 are installed in a / -c solution .2 and with coated items (yes drawing, not shown). The sample witness 1.1 from the non-electrically conductive material is placed in the channel 12 of the converter 4. On the RPM (WRITTING 5 and excitation, low-voltage supply from the generators 13 and J4 is supplied. A signal,; proportional to the resistance of the fluid communication circuit, and, on the measuring winding 8, a signal proportional to the resistance of the liquid circuit to the connection and to the resistance of the coating applied to the sample-witness.

Сигналы с измерительных обмоток усиливаютс усилител ми 15 и 16 и подаютс -на Ендикатор-ы ,/7 и 18.The signals from the measuring windings are amplified by amplifiers 15 and 16, and are fed to Indicators, / 7 and 18.

Сравнивают полученные сигналы, ,наприМер , наход т их разность, и по ней суд т о сопротивлении наносимого на образец-свИдетель покрыти и .его толщине.The received signals are compared, for example, their difference is found, and it is judged by it about the resistance of the coating applied to the sample-coating and its thickness.

Claims

Formula of Invention

il. The method of measuring the thickness of metallic coatings on conductive products in the conviction process from the solution, which consists in JOM, which in the case of a witness sample being placed on the coated products, changes the resistance of the witness sample and measures the thickness coatings, so that in order to measure the thickness of metal coatings also on non-conductive products, they are installed in the bath. A transformer converter with a liquid1 (with the rest of the communication circuit, the sample witness is placed in the channel of the converter, and according to the signal of the latter, the resistance of the sample is changed.

2. The method according to p. 1, different

By installing a second transformer converter in the bath, which is identical to the first one, and its signals are corrected by the signal of the first transformer.

Sources of information taken into account. When expertise:

1. Dorofeev, AL and others. Induction thickness gauge, M., “Energie, 1978, p. 43-.51.

USSR certificate

2. Copyright In 7/06, 1964 (prototype). No. 178495, cl. G 01

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