Creation of Principally New Generation of Switching Technique Elements (Reed Switches) with Nanostructured Contact Surfaces

Karabanov, Sergey M.; Zeltser, I. A.; Maizels, R M; Моос, Е. Н.; Arushanov, K.A.

doi:10.1088/1742-6596/291/1/012020

Cited by 3 publications

(7 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is worth emphasizing that the miniature reed switches provide a continuous contact current of about a few milliamps and an electrical strength of not less than 10 Vdc [1,2]. However, applying them to given load conditions (dry circuit, low level load etc.)…”

Section: Discussionmentioning

confidence: 99%

“…It does not depend on the direction of the magnetic flux, hence on the polarity of the magnetized blades. Of course, the flux variation rate inside the contact gap affects the reed dynamics in transient [1,2,3]. Thus, the operation of the reed switch during the movement of the permanent magnet occurs after passing the singular points ( K , K ’) location irrespective of the flux direction.…”

Section: Mathematical Modelling Of the Magnetic Field For The Selementioning

confidence: 99%

“…Any manually and/or automatically controlled actuators, single or multi-position sensors as well as other types of electromagnetic relays are also products sought on the market. Do not forget about the reed contacts, which miniature products in 5–7 mm glass housings produced traditionally still enjoy success [1,2,3]. The micromechanical structures (so-called MEMS connectors) are also of great importance.…”

Section: Introductionmentioning

confidence: 99%

“…An interesting product is a miniature switch with a ferromagnetic ball of a diameter of 2–3 mm that serves as the magnetic system as well as the electrical contact [13]. The control of all above-mentioned devices is by means of a DC magnetic field produced by coils (also made by an electron beam technology [6,9,10,14]) and/or by the movable permanent magnets [1,2]. It should be emphasized however, that in the case of the permanent magnets, the increase of the sensitivity with simultaneous miniaturization requires the minimized length of the so-called “differential movement” of the control element (s) [3,15].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Control of the Singular Points Location for Miniature Switches with Magnetically Driven Contacts

Wang

Habrych

Miedziński

et al. 2018

Sensors

View full text Add to dashboard Cite

This paper presents and discusses usefulness and possibility of control of the singular points location of a driving magnetic field under as structure considerations as well as selection of energizing magnet systems for miniature electromagnetic switches. The sample results of theoretical analysis and experimental testing concern selected reed switches with normally open contacts as well as a developed miniature switch with a metallic ball contact. It must be noted that the switch with the contact performed by means of the metallic tiny ball can be effectively used both as a change-over switch as well as a detector of the energizing magnetic field distribution under designing and assembling of any electromagnetic contact device preferably with an increased degree of integration and miniaturization.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Mathematical Modelling Of the Magnetic Field For The Selementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Control of the Singular Points Location for Miniature Switches with Magnetically Driven Contacts

Wang

Habrych

Miedziński

et al. 2018

Sensors

View full text Add to dashboard Cite

show abstract

“…In our previous works [2][3][4], we showed that contamination and defects of the contacting surfaces of reed switches affected their conductivity and breakdown voltage. Reed switches belong to the class of electromechanical devices of millimeter dimension.…”

Section: Introductionmentioning

confidence: 89%

Characterization on Contacting Surfaces of MEMS Electrostatic Switches by SEM, EDXA, and XPS

Afinogenov¹,

Zeltser²,

Trunin³

et al. 2015

Advances in Materials Science and Engineering

View full text Add to dashboard Cite

We focus on the origin and sources of surface contamination and defects causing the failure of MEMS electrostatic switches. The morphology, and elemental and chemical compositions of the contacting surfaces, conducting paths, and other parts of switches have been characterized by means of SEM, EDXA, and XPS in order to understand the difference between the data collected for the devices that had passed the electrical conductivity test and those found to be defective. C, O, Al, Ca, Ti, Cu, and some other impurities were detected on the details of defective switches. Contrariwise, the working switches were found to be clean, at least on the level of EDXA and XPS sensitivity. The main sources of surface contamination and defects were incompletely deleted sacrificial layers, substrate materials, and electrolytes employed for Rh plating of the contacts. The negative influence of foreign microparticles, especially alumina and copper oxides, on the conductivity and porosity of contacts was highlighted.

show abstract

Switching Properties of the Contact Coatings Based on Refractory Metals Alloys

et al. 2023

View full text Add to dashboard Cite

Switching the properties of the Ag contact groups of an electromagnetic relay with the electrodeposited Ni-W and Co-W alloy coatings was studied. It is shown that these coatings are able to stabilize the spread of contact resistance within the entire test interval and to increase the service life of Ag contact groups from 2.3 × 106 to 4.5 × 106 commutation cycles. According to our research, the service life of coated contact groups is mainly determined by a change in the surface morphology caused by the electrical erosive transfer of the contact materials and to a lesser extent by the formation of poorly conductive adsorbed hydrocarbon films.

show abstract

Creation of Principally New Generation of Switching Technique Elements (Reed Switches) with Nanostructured Contact Surfaces

Cited by 3 publications

References 2 publications

Control of the Singular Points Location for Miniature Switches with Magnetically Driven Contacts

Control of the Singular Points Location for Miniature Switches with Magnetically Driven Contacts

Characterization on Contacting Surfaces of MEMS Electrostatic Switches by SEM, EDXA, and XPS

Switching Properties of the Contact Coatings Based on Refractory Metals Alloys

Contact Info

Product

Resources

About