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或記錄、建檔、分類、存儲(chǔ)和傳送。這個(gè)定義包括那些主要產(chǎn)生各種周期性二進(jìn)制電氣或電子脈沖波形,并實(shí)現(xiàn)數(shù)據(jù)處理功能的單元或系統(tǒng):諸如文字處理、電子計(jì)算、數(shù)據(jù)轉(zhuǎn)換、記錄、建檔、分類、存儲(chǔ)、恢復(fù)及傳遞,以及用圖像再現(xiàn)數(shù)據(jù)等。注意:在產(chǎn)品標(biāo)準(zhǔn)或適用的規(guī)范中給出的其他定義可以優(yōu)先采納。data from another device (host) that, in turn, controls its operation. 外圍設(shè)備:將數(shù)據(jù)饋入其他設(shè)備(主機(jī))或接收來自其他設(shè)備(主機(jī))的數(shù)據(jù)以控制其工作的數(shù)字輔助設(shè)備。Intentional radiator: A device that intentionally generates and emits RF energy by radiation or induction. 故意輻射器:靠輻射或感應(yīng)故意產(chǎn)生并發(fā)射射頻能量的裝置。Pulse: An abrupt variation of short duration of a physical quantity followed by a rapid return to the initial value. 脈沖:在短時(shí)間內(nèi)突變,隨后又迅速返回其初始值的物理量。Impulse: A pulse that, for a given application, approximates a unit pulse or a Dirac function. 沖激脈沖:針對(duì)某給定用途,近似于一單位脈沖或迪拉克函數(shù)的脈沖。Random noise: Electromagnetic noise, the values of which at given instants are not predictable, except in a statistical sense. 隨機(jī)噪聲:(給定瞬間其值不可預(yù)測的噪聲。Electrostatic discharge (ESD): A transfer of electric charge between bodies of different electrostatic potential in proximity or through direct contact. 靜電放電(ESD):具有不同靜電電位的物體相互靠近或直接接觸而產(chǎn)生的電荷轉(zhuǎn)移。Swell: A momentary increase in the power frequency voltage delivered by the mains, outside of the normal tolerances, with a duration of more than one cycle and less than a few seconds. 隆起:干線傳輸?shù)碾娫搭l率的電壓瞬間增大,超出了標(biāo)準(zhǔn)公差、持續(xù)時(shí)間超過一個(gè)周期而小于幾秒。Surge remnant: That part of an applied surge that remains downstream of one or several protective devices. 浪涌殘余:外加浪涌經(jīng)過一個(gè)或幾個(gè)防護(hù)裝置后剩余的部分。Continuous noise: Electromagnetic noise, the effects of which on a particular device or equipment cannot be resolved into a succession of distinct effects. 連續(xù)噪聲:對(duì)一個(gè)特定設(shè)備的效應(yīng)不能分解為一串能清晰可辨的效應(yīng)的噪聲。Discontinuous interference: Electromagnetic interference occurring during certain interferencefree time intervals. 非連續(xù)干擾:出現(xiàn)于被無干擾間隙隔開的一定時(shí)間間隔內(nèi)的電磁干擾。(敏感性高,抗擾性低。Internal immunity: Ability of a device, equipment, or system to perform without degradation in the presence of electromagnetic disturbances appearing at its normal input terminals or antennas. 內(nèi)部抗擾性:裝置、設(shè)備或系統(tǒng)在其常規(guī)輸入端或天線處存在電磁騷擾時(shí)能正常工作而無性能降低的能力。Immunity limit: The specified minimum immunity level. 抗擾度限值:規(guī)定的最小抗擾性電平。The difference between the immunity limit of a device, equipment, or system and the electromagnetic patibility level. 抗擾度裕量:裝置、設(shè)備或系統(tǒng)的抗擾性限值與電磁兼容電平之間的差值。Limit of disturbance: The maximum permissible electromagnetic disturbance level, as measured in a specified way. 騷擾限值(允許值):對(duì)于規(guī)定測量方法的最大電磁騷擾允許電平。)電磁騷擾使裝置、設(shè)備或系統(tǒng)性能降低的最大允許值。)Electromagnetic patibility (EMC): The ability of a device, equipment, or system to function satisfactorily in its electromagnetic environment without introducing intolerable electromagnetic disturbances to anything in .that environment. 電磁兼容性(EMC):設(shè)備或系統(tǒng)在其電磁環(huán)境中能正常工作且不對(duì)該環(huán)境中任何事物構(gòu)成不能承受的電磁騷擾的能力。 Intrasystem electromagnetic patibility: The condition that enables the various portions of a system to function without perceptible degradation caused, by electromagnetic sources in other portions of the same system. 系統(tǒng)內(nèi)電磁兼容性:使系統(tǒng)各部分都能夠不出現(xiàn)由該系統(tǒng)不同部分電磁源造成的明顯性能降低的條件。Electromagnetic patibility margin: The ratio of the immunity level of a device, equipment, or system to the reference disturbance level. 電磁兼容裕量:裝置、設(shè)備或系統(tǒng)的抗擾性電平與騷擾源的發(fā)射限值之間的差值。Suppressor。Disturbance suppression: Action that reduces or eliminates electromagnetic disturbance. 騷擾抑制:削弱或消除電磁騷擾的措施。Measurements 測量Equipment under test (EUT): A device or system, used for .evaluation that is representative of a product to be marketed. 受試設(shè)備(EUT):用來對(duì)市售產(chǎn)品做出評(píng)估的裝置或系統(tǒng)的樣品。Conducted radio noise: Radio noise produced by equipment operation, which, exists on the power line (or signal lines) of the equipment and is measurable under specified conditions as a voltage or current. 傳導(dǎo)無線電噪聲:設(shè)備工作時(shí)產(chǎn)生的無線電噪聲,它存在于設(shè)備的電源線(或信號(hào)線)上,并可在規(guī)定條件下作為電壓或電流進(jìn)行測量。注意,通過直接耦合或某些電路元件的二次輻射,它可進(jìn)入諸如ITE之類的接收器。Floorstanding equipment: Equipment designed to be used directly in contact with the floor, or supported above the floor on a surface designed to support both the equipment and the operator (., a raised puter floor). 地上設(shè)備:設(shè)計(jì)成直接與地面接觸或置于地板上的設(shè)備(地板用于支撐地面上方的設(shè)備和操作人員,例如高出地面的計(jì)算機(jī)地板)。Differentialmode radio noise: Conducted radio noise that causes the potential of one side of the signal transmission path to be changed relative to another side. 差模無線電噪聲:造成信號(hào)傳輸路徑一側(cè)的電位相對(duì)于另一側(cè)變化的傳導(dǎo)無線電噪聲。 fine impedance stabilization network (LISN): A network inserted in the supply mains lead of an apparatus to be tested providing, in a given frequency range, a specified load impedance for (he measurement of disturbance voltages and possibly isolating the apparatus from the supply mains in that frequency range. 人工電源網(wǎng)絡(luò)、線路阻抗穩(wěn)定網(wǎng)絡(luò)(LISN):串接在被試設(shè)備電源進(jìn)線處的網(wǎng)絡(luò)。Delta network: An artificial mains network enabling the monmode and differentialmode voltages of a singlephase circuit to be measured separately. 德爾塔網(wǎng)絡(luò):能夠分別測量單相電路共模電壓和差模電壓的人工電源網(wǎng)絡(luò)。(V形網(wǎng)絡(luò)可設(shè)計(jì)成用于任意導(dǎo)體數(shù)的網(wǎng)絡(luò)。Surface transfer impedance (of a coaxial line): The quotient of the voltage induced in the center conductor of a coaxial line per unit length by the current on the external surface of the coaxial line.(同軸線的)表面轉(zhuǎn)移阻抗:同軸線內(nèi)導(dǎo)體單位長度上的感生電壓與同軸線外表面上的電流之比。Shielded enclosure。OPENAREA TEST SITES開闊試驗(yàn)場地Standard antenna calibration site: A flat, open area site which has a metallic ground plane and is devoid of nearby scatterers such as trees, power lines, and fences. 標(biāo)準(zhǔn)天線較準(zhǔn)場地:具有金屬接地平面且附近沒有樹木、輸電線和柵欄之類散射體的平坦開闊場地。Antenna factor: Quantity relating the strength of the field in which the antenna is immersed to the output voltage across the load connected to the antenna. 天線系數(shù):表示天線所在處電場強(qiáng)度與天線端接負(fù)載上輸出電壓之間關(guān)系的量。Normalized site attenuation (NSA): Site attenuation divided by the antenna factors of the radiating and receiving antennas (ail in linear units). 歸一化場地衰減(NSA):場地衰減除以發(fā)射天線與接收天線的天線系數(shù)(全部用線性單位)。Radiated emission test site: A site meeting specified requirements suit able for measuring radio interference fields radiated by a device equipment, or system under test. 輻射發(fā)射試驗(yàn)場地:適用于測量由受試裝置、設(shè)備或系統(tǒng)輻射的無線電干擾場的且滿足規(guī)定要求的場地。Twosignal method: A method of .measurement that determines the response of the receiver