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Ip waterproof rating
| CCTV glossary (глоссарий терминов по видеонаблюдению) |
Ip waterproof ratings are a bsi standard measurement for how waterproof something is. many security cameras or camera housings are designed for outdoor use need to be waterproof. the ip rating number has two digits, and optional letters after them. e.g ip66 and ip68. the first number defines the protection against ingress of foreign objects. 0 is the lowest rating and means non-protected. 6 is the highest rating and means dust tight and protects against access with a wire. the second number defines the level of protection against ingress of water. 0 is the lowest rating means non-protected. 8 is the higest rating and means protects against continuous immersion in water.
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Waterproof, английский
- Водонепроницаемый
- In the building trades, descriptive of any material or construction which is impervious to water.
- A term applied to materials that are impermeable to water; waterproof fabrics have all of their pores closed and are also impermeable to air making them uncomfortable to wear.
- A term applied to materials that are impermeable to water; waterproof fabrics have had all their pores closed and are also impermeable to air and very uncomfortable. water-repellent: a term applied to fabrics that can shed water but are permeable to air and comfortable to wear. these fabrics are produced by treating the material with a resin, wax, or plastic finish that is not completely permanent.
Measurement, английский
- Set of operations having the object of determining a value of a quantity (1)
- Измерение. система мер.
- Измерение; замер
- The size, length, etc. of something which has been measured
- Измерение
- Обмер
- Оценка
- Измерение dust ~ измерение концентрации пыли
- Измерение. комплекс операций, имеющих целью определение значе-ния величины [32].
- The process of ascertaining the attributes, dimensions, extent, quantity, degree or capacity of some object of observation and representing these in the qualitative or quantitative terms of a data language. any empirical pursuit that places the observer outside his object of observation must consider measurement the fundamental process through which scientific constructs or models are linked to reality (->index, ->symptom). otherwise measurement is only one section in a circular process of computing a stable form. the traditional levels of measurement are nominal, ordinal, interval and ratio scales.
- The magnitude of the property of an object calibrated against one or more units of measure.
- Измерение. комплекс операций, имеющих целью определение значения величины [32].
Protection, английский
- Охрана; защита см. coverage
- Охрана; защита
- 1. the act of keeping a person or thing safe from harm 2. something which protects children are vaccinated as a protection against disease. protection of children act 1999 protection of children act 1999 /pr? tek??n ?v t??ldr?n kt/
- Protección
- Предохранение
- Formerly, a certificate giving exemption from impressment.
- Защита; средства защиты
- Защита; защитные меры о ~
- Process of setting equipment or anchors for safety.
- A tab within the exchange administration center (eac) that contains anti-virus/anti spam, and data loss protection.
- The process of protecting data from loss or corruption by centrally creating and maintaining replicas and shadow copies of the data. dpm is designed to provide short-term disk-based backup, to support rapid and reliable recovery of data.
- In a specialised sense, used for the rules governing the protection given to a train which stops in an unusual location or becomes derailed, to stop another train hitting it.
Continuous, английский
- Непрерывный
- Непрерывный; длительный; продолжающийся
- A продолженный, дли- тельный, непрерванный form, future, past, present contoid n контоид
- Непрерывный, неразрывный, сплошной, неразрезной (об элементах конструкции)
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Auto iris, английский
Security cameras with auto iris, have the ability to compensate for large variations in light levels. this is useful for security cameras that need to adjust for changes from bright sunlight to darkness or night. auto iris circuitry is normally linked to a motorized drive that opens and shuts the iris on the camera lens. closing a physical iris is a much better way to protect a camera from being damaged by bright sunlight then simply using electronics to reduce the signal strength.
Ccd charge coupled device, английский
Charge coupled device, ccd, is one of the two main types of image sensors used in security cameras. when a video is recorded, the ccd is struck by light coming through the camera`s lens. each of the thousands or millions of tiny pixels that make up the ccd converts this light into electrons. the number of electrons, usually described as the pixel`s accumulated charge, is measured, and then converted to a digital value. this last step occurs outside the ccd, in a camera component called an analog-to-digital converter.
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