TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

MOIRE FABRIC [7 records]

Record 1 2010-09-27

English

Subject field(s)
  • Scientific Research Methods
  • Optics
CONT

Temporal Paul wavelet analysis for instantaneous phase extraction using shadow moiré technique is proposed. Unlike the Morlet wavelet, the Paul wavelet has less restriction on the adjustment of wavelet parameters and can provide an optimal time and frequency resolution for a particular application by selecting the proper parameters. The Paul wavelet is a complex wavelet and is suitable for processing the temporal intensity data obtained from the shadow moiré technique for the phase retrieval. The proposed method can extract the phase information related to the state of the dynamic object at every instant in temporal domain. The phase information is associated to the displacement, three-dimensional (3D) surface-profile and the instantaneous state of the dynamic object. In addition, the instantaneous frequency of vibrating object can be obtained using the scale of the wavelet ridge by direct integration without temporal and spatial phase unwrapping. Thus the phase unwrapping error can be avoided. An experiment is conducted on the central loaded beam to demonstrate the validity of the proposed technique.

OBS

The term “moiré” is... a French word referring to “an irregular wavy finish usually produced on a fabric by pressing between engraved rollers”(Webster's 1981). In optics it refers to a beat pattern produced between two gratings of approximately equal spacing. It can be seen in everyday things such as the overlapping of two window screens, the rescreening of a half-tone picture, or with a striped shirt seen on television. The use of moiré for reduced sensitivity testing was introduced by Lord Rayleigh in 1874. Lord Rayleigh looked at the moiré between two identical gratings to determine their quality even though each individual grating could not be resolved under a microscope.... Since Lord Rayleigh first noticed the phenomena of moiré fringes, moiré techniques have been used for a number of testing applications. Righi(1887) first noticed that the relative displacement of two gratings could be determined by observing the movement of the moiré fringes. The next significant advance in the use of moiré was presented by Weller and Shepherd(1948). They used moiré to measure the deformation of an object under applied stress by looking at the differences in a grating pattern before and after the applied stress. They were the first to use shadow moiré, where a grating is placed in front of a nonflat surface to determine the shape of the object behind it by using the shape of the moiré fringes.

French

Domaine(s)
  • Méthodes de recherche scientifique
  • Optique
CONT

Le moiré d’ombre. Cette technique […] consiste à créer un moiré entre une grille de référence placée juste devant l’objet, et l’ombre de cette même grille projetée sur la surface étudiée. Les déformations de cette surface modifient le pas du réseau «ombre» créant ainsi le moiré. Une mesure du pas de ce moiré permet, à l’aide des équations précédentes, de remont3er aux déformations locales et de dresser la carte des hauteurs.

CONT

Le moiré d’ombre. Il s’agit d’un dérivé (conceptuellement, pas historiquement) de la mesure de forme par projection de frange.

Spanish

Save record 1

Record 2 2006-09-23

English

Subject field(s)
  • Textiles: Preparation and Processing
CONT

Decorative finishes achieve a decorative result or an enhanced aesthetic hand or appearance. A decorative finish may give a fabric its name, such as moiré, plissé or chintz, for example. Some decorative effects are not apparent because they enhance the surface texture of the finish by brightening or dulling it. Some finishes increase the durability of the decorative effect.

French

Domaine(s)
  • Apprêt et traitements divers (Textiles)

Spanish

Save record 2

Record 3 2004-12-14

English

Subject field(s)
  • Textiles: Preparation and Processing
DEF

[Refers to] a textile finish which creates lustrous or dull effects on the surface of a woven fabric.

CONT

Moiré effects are achieved when crushed and the uncrushed parts of the fabric reflect light differently in a rippled, or watermarked, pattern. This popular look is usually achieved by passing the fabric between engraved rollers that press a wavy motif into the fabric. Moiré effects may also be achieved by overlapping various colors in printing fabrics, or by method of weaving.

French

Domaine(s)
  • Apprêt et traitements divers (Textiles)
DEF

[Se dit d'un effet obtenu sur une étoffe en écrasant] par calandrage sous tension un tissu mouillé, souvent à côtes, en le repliant sur lui-même (tête sur tête) [ce qui fait dévier légèrement] la trame [donnant ainsi] un effet ondulé par réflexion de la lumière sur les côtes écrasées.

Spanish

Save record 3

Record 4 2002-10-29

English

Subject field(s)
  • Fabric Nomenclature
DEF

A ribbed or corded fabric that has been subjected to heat and heavy pressure by rollers after weaving so as to present a rippled appearance.

OBS

The effect arises from differences in reflection of the flattened and the unaffected parts. This type of fabric is also correctly described as watered.

Key term(s)
  • moire fabric

French

Domaine(s)
  • Nomenclature des tissus
DEF

Tissu d'armure toile qui présente des parties mates et des parties brillantes par suite de l'apprêt dit «moire».

CONT

L'étoffe moirée présente donc un reflet changeant. L'aspect est chatoyant par les jeux de lumière se produisant sur la surface du tissu ce qui donne l'impression de «vagues».

Spanish

Campo(s) temático(s)
  • Nomenclatura de los tejidos
DEF

Tela que hace ondas.

Save record 4

Record 5 2002-10-22

English

Subject field(s)
  • Inks and Colour Reproduction (Graphic Arts)
CONT

One of the most notorious of the “process” imperfections is moiré... Then we have what is known as subject moiré. This happens when a busy pattern in an image, such as a checkered fabric, interferes with or complicates the screen angles.

French

Domaine(s)
  • Encres et couleurs (Industrie graphique)
CONT

En simulant le motif de points réels, les utilisateurs peuvent prédire le moiré de structure ou de couleur.

Spanish

Save record 5

Record 6 2001-12-19

English

Subject field(s)
  • Fabric Nomenclature
DEF

A moiré rep fabric.

CONT

French moire ribbons with Jacquard borders.

CONT

Bar moire dress taffeta.

French

Domaine(s)
  • Nomenclature des tissus
CONT

D'après leurs dessins, on classe les moires en deux catégories : -- la moire antique (à grandes ondes); -- la moire française (à dessins plus petits).

Spanish

Save record 6

Record 7 1997-10-27

English

Subject field(s)
  • Textile Industries
  • Textiles: Preparation and Processing
OBS

Moiré : Waved or watered effect on a textile fabric... produced by passing the fabric between engraved cylinders, which press design onto material causing crushed and uncrushed parts to reflect light.

French

Domaine(s)
  • Industries du textile
  • Apprêt et traitements divers (Textiles)
OBS

Moirage : Opération par laquelle on donne l'apprêt de la moire à une étoffe. Le moirage s'obtient avec une calandre, dont un des rouleaux est rayé. [...] Moire : Apprêt que reçoivent certains tissus par écrasement irrégulier de leur grain (à la calandre, au cylindre...) et qui leur donne un éclat changeant, une apparence ondée et chatoyante.

Spanish

Save record 7

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