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TranslationMobile

標(biāo)稱頻率
額定頻率

"nominal" in Chinese : adj. 1.名字的，列名的。 2.名義上的，空有其名的 ...
"frequency" in Chinese : n. 1.屢次，頻仍，頻繁。 2.(脈搏等的)次數(shù)，出現(xiàn) ...
"nominal carrier frequency" in Chinese : 標(biāo)稱載頻
"nominal center frequency" in Chinese : 標(biāo)稱中心頻率
"nominal channel frequency" in Chinese : 信道標(biāo)稱頻率
"nominal cut off frequency" in Chinese : 額定截止頻率
"nominal cut-off frequency" in Chinese : 標(biāo)稱截止頻率; 額定截止頻率
"nominal mean frequency" in Chinese : 標(biāo)準(zhǔn)中心頻率
"nominal passband center frequency" in Chinese : 額定帶通中心頻率
"nominal signal frequency" in Chinese : 標(biāo)稱信號頻率
"nominal" in Chinese : adj. 1.名字的，列名的。 2.名義上的，空有其名的；有名無實(shí)的。 3. ...
"a nominal price" in Chinese : 名義價(jià)（虛價(jià)）
"a nominal rent" in Chinese : 微不足道的租金
"current nominal" in Chinese : 市場現(xiàn)價(jià)
"horsepower nominal" in Chinese : 標(biāo)稱馬力

Examples

In this method , the phase difference between two compared signals that have same nominal frequency can be converted into voltage signal by phase detector . the voltage signal varies linearly with the phase difference and can be displayed or recorded by some instruments
此方法是將兩個(gè)被比對的標(biāo)稱值相同的標(biāo)準(zhǔn)頻率信號之間的相位關(guān)系，通過線性鑒相器轉(zhuǎn)換成與它成線性關(guān)系的電壓信號，并通過相應(yīng)的設(shè)備進(jìn)行顯示紀(jì)錄。
The system can generate sweep frequency signal with frequency range from 100khz to 150mhz and power range from - 40dbm to + 18dbm , and measure the gain and phase of the crystal . according to the gain and phase information and the iec - 444 standard , crystal parameters can be calculated , such as nominal frequency , series resistance , shunt capacitance , motion capacitance , motion inductance , q factor and so on
該系統(tǒng)能產(chǎn)生頻率范圍達(dá)100khz 150mhz ，功率范圍為? 40dbm + 18dbm的掃頻信號，并能對晶振的增益和相位差進(jìn)行測量，其測量結(jié)果按照iec - 444晶振測量標(biāo)準(zhǔn)進(jìn)行實(shí)時(shí)處理和計(jì)算，從而得到晶振的串聯(lián)諧振頻率、并聯(lián)諧振頻率、等效電阻、靜態(tài)電容、動態(tài)電容、動態(tài)電感和品質(zhì)因數(shù)等主要電參數(shù)。
Because the nonlinearity of phase detector exists near 0 and 360 , the measurement precision is limited . according to the feature of each nominal frequency , two new measurement methods are discussed in the second chapter of this paper . the two methods can reduce the phase noise , eliminate the effect of nonlinearity and promote the measurem ent precision by taking measure
由于在0和360附近存在的非線性，限制了儀器的測量精度，所以在本文的第二章中通過兩種新的測量方法的討論，并根據(jù)各頻率標(biāo)準(zhǔn)相位噪聲的特點(diǎn)，針對性的采取措施和如何克服在0和360附近的非線性的影響，以達(dá)到提高測量精度的目的。