Covering Power

covering power

[′kəv·riŋ ‚pau̇·ər]
(engineering)
The degree to which a coating obscures the underlying material.
(metallurgy)
The ability of an electroplating bath to produce a coating at a low current density.
(optics)
The field of view over which a camera lens can produce a sharp image, frequently expressed as an angle.

Covering Power

 

(also hiding power), the ability of pigmented paints and varnishes to cover a colored surface. The covering power is proportional to the difference in the refractive indexes of the pigments and the film-forming vehicles; it is also dependent upon pigment properties. The greater the covering power, the less paint used per unit of surface. The covering power is determined by visual and photometric methods.


Covering Power

 

in photography, the measure of the effectiveness of silver in darkening, equal to the ratio between the diffuse optical density of the darkening D and the surface concentration of the silver present CAB (in g per sq m). The smaller the silver granules producing the darkening effect, the greater is the covering power (usually from 0.25 to 0.8 sq m per g).

hiding power, covering power

The ability of a paint film to obscure completely any pattern, marks, or color on the surface to which it is applied.
References in periodicals archive ?
More than 100 cities (ranging from Nairobi/Kenya and Dar es Salaam/Tanzania to Auckland/NZ, Stockholm/Sweden and Seattle/USA) use at least 70% renewable electricity, and at least 50 cities put in place renewable energy targets covering power, heating and cooling, and transport.
Researchers from Imperial College London and E4tech drew up a "barometer" of regional and national progress, covering power, transport and buildings.
Asset Finance & Securitization brings together ABS, RMBS & CLO Securitization with the Asset Finance teams covering Power, Infrastructure & Project Finance, Export Finance, Transportation Finance, Metals & Mining Structured Debt, and Asset Based Lending into one platform encompassing all structured debt products.
Even better, the display and the 4,736 rider modes covering power delivery, traction control, semi-active suspension, ABS and so on are controlled by a little joystick on the left bar so simple even blokes can operate it.
Beeby's Applications of Energy Harvesting in Technologies in Buildings (9781608079810, $149.00) explores energy sources in commercial and residential buildings and the latest technologies used to 'harvest' energy through solar cells and other applications, covering power monitoring systems, different living and working environments, power transfer systems, and different harvesting methods.
Summary of BMIs key industry forecasts, views and trend analysis, covering power markets, regulatory changes, major investments, projects and company developments.
Summary of BMI's key industry forecasts, views and trend analysis, covering power markets, regulatory changes, major investments, projects and company developments.
Silvergate says its Simply White technology performs extremely well in terms of colour accuracy and covering power, at a "lower price" than industry alternatives.
The authors have organized the bulk of their material into fourteen chapters, covering power and citizenship in American politics, the politics of the founding of America, federalism, fundamental American liberties, the struggle for equal rights, congress, the presidency, bureaucracy, the American legal system and courts, and a variety of other related subjects.
Approvals were issued at the start of this year to transform and redesign Al Khawaneej Station to be a Model Green Station, and for this purpose specific programmes are being developed for the station covering power consumption, the use of solar energy instead of the ordinary power supply, and the endorsement as well as the introduction of other environmental systems which are environment-friendly and fulfill the stipulations of sustainable development," explained Al Ali.
Cable ramps are essential for covering power cables on walkways to ensure that people do not accidentally trip and fall.