angle of incidence

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an·gle of in·ci·dence

1. the angle that a ray entering a refracting medium makes with a line drawn perpendicular to the surface of this medium;
2. the angle that a ray striking a reflecting surface makes with a line perpendicular to this surface.
Synonym(s): incident angle

angle of incidence

the angle at which an ultrasound beam hits the interface between two different types of tissues, such as the facing surfaces of bone and muscle. The angle is also affected by the difference in acoustic impedance of the different tissues.

an·gle of in·ci·dence

(anggĕl insi-dĕns)
1. Angle that a ray entering a refracting medium makes with a line drawn perpendicular to the surface of this medium;
2. Angle that a ray striking a reflecting surface makes with a line perpendicular to this surface.
Synonym(s): incident angle.

angle of incidence

the angle at which a body, object or vector is moving relative to another (e.g. a stationary surface or environmental factor such as wind), often prior to a collision. Example: when playing a snooker ball at a cushion, the angle between the ball's direction of travel and the cushion.
References in periodicals archive ?
Reflection Absorption Infrared Spectroscopy (RAIRS) at grazing angles of incidence, undertaken in practice typically at about 80[degrees] or greater, involves measurement of the change of reflectivity of a substrate brought about by a thin infrared absorbing layer.
Flux is substantially below the maximum and relatively constant as pitch angle decreases, and flux is initially low even at negative angles of incidence.
By attributing property anisotropy to the formation of different structures at different angles of incidence, (Nieuwenhuizen and Haanstra 1966) was the first to understand that the columns being formed inclined at an angle different (but always larger) than the angle of incidence from the substrate surface.
Rulf[1] shows that it is possible to achieve reflection coefficients of -30 dBi over an approximate 15% frequency bandwidth for angles of incidence corresponding to the antenna looking through the nose of the radome.
Spectra calculated taking into account beam focusing exhibited significant edge deformation for the HR-2 (SB-3) and HR-4 (SB-9) bands, compared to those calculated for normal angles of incidence.
Snell's law is used to determine the relation among the angles of incidence, reflection and transmission by using following relations:
The maximum sensitivity for A occurs at angles of incidence between 75 and 80 deg, and decreases with film thickness.
The formulation of problem will be done for zero reflection from a chiral coated PEC plate for different wave polarizations at particular angles of incidence.
In Figure 7, we plot the reflectance response for 1DTSMDPC at different angles of incidence at [d.
Q-Zorb RFSW surface wave absorbers are thin, magnetically loaded elastomeric sheets designed to provide EMI protection at high angles of incidence for surface wave attenuation.
The examination of the axles with a longitudinal hole is drilled from the inner bore surface in both axial directions of incidence of at least two different angles of incidence in both circumferential directions with a respective angle of incidence and in the vertical insonification.
We also verified that power is conserved, showing that the sum of the two ratios is 1 for all angles of incidence.