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Contrast (mt, pt, rt)
| Глоссарий терминов по технологиям неразрушающего контроля (NDT) |
The difference in visibility between an indication and the surrounding surface.
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Difference, английский
- Disagreement, inequity, contrast, dissimilarity, incompatibility
- Разница; разность
- An important army term, meaning firstly the sum to be paid by officers when exchanging from the half to full pay; and, secondly, the price or difference in value of the several commissions.
Visibility, английский
- The greatest distance at which it is possible with the unaided eye to recognize a prominent dark object against the horizon sky. at night, it is defined as the greatest distance at which a moderately intense, unfocused light source can be seen on the hori
- Видимость
- [1] visual range. [2] the atmospheric property that determines ability to see and identify objects. [3] in meteorology, the distance at which a standard object can be seen and identified by the unaided human eye.
- Видимость. наибольшее расстояние, на котором можно увидеть и опознать черный предмет соответствующих размеров на фоне дневного неба или в ночных наблюдениях— при общем освещении на уровне нормального дневного света (вмо). при определении ночной видимости можно использо вать вместо чёрного объекта несфокусированный свет задан ной интенсивности. инструментально оценку видимости мож но проводить путем измерения ослабления света при прохож дении им достаточно протяженного отрезка пути. результаты измерения видимости обычно представляют собой средние значения наблюдений, проводимых по всему горизонту.
- A property of a replica that indicates which members of the replica set it can synchronize with and which conflict resolution rules apply. replicas fall into three visibility types: global, local, and anonymous.
- The ability of a bluetooth device to let any other bluetooth device discover and connect with it.
- The ability of one element to see or refer to another. for one element to send a message to another element, the latter must be visible to the former.
- Said of a variable. a variable is visible if its contents can be accessed by its name. a local variable in one function might not be visible from inside another function. vi - the classic text editor on a unix machine. generally available on all unix based operating systems. the modern version of vi is vim.
- Maximum distance at which an object of defined size, brightness and contrast can be seen and recognized.
- Quality or state of being perceivable by the eye. in many outdoor applications, visibility is defined in terms of the distance at which an object can be just perceived by the eye. in indoor applications it usually is defined in terms of the contrast or size of a standard test object, observed under standardized view conditions, having the same threshold as the given object.2,6
- Quality or state of being perceivable by the eye. outdoors, visibility is usually defined in terms of the distance at which an object can be just perceived by the eye. indoors, visibility usually is defined in terms of the contrast or size of a standard test object, observed under standardized view conditions and having the same threshold as the given object (iesna 1984).
- The prominence and positions a website occupies within the organic search results.
Indication, английский
- Индикация
- A situation or sign which suggests that a specific treatment should be given or that a condition has a particular cause sulpha drugs have been replaced by antibiotics in many indications. contraindication
- (1) notice given by a dealer (through autex) or customer of an interest in buying or selling stock, sometimes including specific volume and price; (2) approximation of where a specialist sees buy and sell interest to tighten the range to an opening price.
- Выражение интереса (бирж.)
- In nondestructive inspection, a response or evidence of a response, that requires interpretation to determine its significance.
- Nondestructive test response that requires interpretation to determine its relevance. these include such things as meter deflections, shadows on radiographs, blips on screens, or localized discolorations on surfaces. see also defect; discontinuity; indication, false; indication, nonrelevant. indication, discontinuity: visible evidence of a material discontinuity. subsequent interpretation is required to determine the significance of an indication. indication, false: test indication that could be interpreted as originating from a discontinuity where no discontinuity exists. compare defect; ghost; indication, nonrelevant. false indications are an economic liability for inspection because they must be investigated. indication, nonrelevant: indication due to misapplied or improper testing. may also be an indication caused by an actual discontinuity that does not affect the usability of the test object (a change of section, for instance). indication, relevant: indication from a discontinuity (as opposed to a nonrelevant indication) requiring evaluation by a qualified inspector, typically with reference to an acceptance standard, by virtue of the discontinuity’s size, shape, orientation, or location.
- Nondestructive test response that requires interpretation to determine its relevance.4 see also defect; discontinuity; false indication; nonrelevant indication. indication, nonrelevant: indication that has no relation to a discontinuity that might constitute a defect.1 test response caused by geometry or by a physical condition that is not a discontinuity. indication, relevant: indication from a discontinuity (as opposed to a false indication) requiring evaluation by a qualified inspector, typically with reference to an acceptance standard, by virtue of the discontinuity’s size or location.1
- Nondestructive test response that requires interpretation to determine its relevance. compare defect; discontinuity; indication, false; indication, nonrelevant. indication, false: (1) test indication that could be interpreted as originating from a discontinuity but that actually originates where no discontinuity exists in the test object. (2) indication due to misapplied or improper testing. compare indication, nonrelevant; defect. indication, nonrelevant: indication that has no relation to a discontinuity that might constitute a defect. test response caused by geometry or by a physical condition that is not a discontinuity (a change of section, for instance). indication, relevant: indication from a discontinuity (as opposed to a false indication) requiring evaluation by a qualified inspector, typically with reference to an acceptance standard, by virtue of the discontinuity’s size or location.
- Nondestructive test response that requires interpretation to determine its relevance. compare defect; discontinuity. see also indication, false; indication, nonrelevant. indication, false: (1) test indication that could be interpreted as originating from a discontinuity but that actually originates where no discontinuity exists in the test object. (2) indication due to misapplied or improper testing. compare indication, nonrelevant. indication, nonrelevant: indication that has no relation to a discontinuity that might constitute a defect. test response caused by geometry or by a physical condition that is not a discontinuity (a change of section, for instance). indication, relevant: indication from a discontinuity (as opposed to a false indication) requiring evaluation by a qualified inspector, typically with reference to an acceptance standard, by virtue of the discontinuity’s size or location.
- Nondestructive test equipment response to a discontinuity that requires interpretation to determine its relevance.4 in magnetic particle testing, a visible accumulation of magnetic particles that serves as evidence of a magnetic leakage field.
- Defect, discontinuity, false indication and nonrelevant indication. induced current magnetization: noncontact means for testing delicate ring shaped objects for circumferential discontinuities. the technique is based on the fact that a time varying current passing through an internal conductor, often a soft iron or laminated core, self-induces an encircling magnetic field. this time varying magnetic field will induce a secondary current circling through the ring. this secondary current then self-induces the toroidal magnetic field used for testing.
- Nondestructive test equipment response to a reflector, requiring interpretation to determine its relevance. compare crack; defect; discontinuity; indication, false.10 indication, discontinuity: visible evidence of a material discontinuity. subsequent interpretation is required to determine the indication’s significance.10 indication, false: test indication that originates where no discontinuity exists in the test object. compare defect; indication, nonrelevant.10 indication, nonrelevant: indication possibly caused by an actual discontinuity that does not affect the usability of the test object (a change of section, for instance) or that is smaller than a relevant indication. compare indication, false and indication, relevant.10 indication, relevant: indication from a discontinuity (as opposed to a nonrelevant indication) requiring evaluation by a qualified inspector, typically with reference to an acceptance standard, by virtue of the discontinuity’s size, shape, orientation or location. compare indication, nonrelevant.10,19
Surrounding, английский
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Distorted field (mt), английский
The direction of a magnetic field in a symmetrical object will be substantially uniform if produced by a uniformly applied magnetizing force, as in the case of a bar magnetized in a solenoid. but if the piece being magnetized is irregular in shape, the field is distorted and does not follow a straight path or have a uniform distribution.
Contrast, radiographic (rt), английский
The difference in density between an image and its immediate surroundings on a radiograph.
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