BODE100網絡分析儀,Bode100頻率響應分析儀,Bode100環路分析儀 ,電路輸入阻抗,輸出阻抗測試
Bode100環路分析儀的主要功能是量測待測物在頻域上的特性,了解其性能及穩定性,并可輔助控制線路的設計。其工作原理是藉由注入一個頻率變化的小信號,測出待測物在不同頻率的響應特性。 一般工程師在設計驗證時,都是直接測試外在的時域功能特性。例如針對電源供應器,需要不同電壓輸出來做拉載測試,看是否會有震蕩的不穩定情形。這種測試過程是必要的,但是不夠。并且需花用大量時間,當線路有修改后,又得重新測試。而即使設計驗證已經沒有問題,常會發生于大量生產時,因為使用零件的誤差,仍有少數產品會有不穩定的瑕疵狀況,
這是因為設計時沒有正確評估系統的穩定性。但這種特性無法直接由電流拉載的時域測試來得到,必須經由Bode100環路分析儀的使用,才能得到系統的頻率響應圖,來判讀出穩定度的特性。而這種頻率響應的測試,不僅速度快,節省大量測試時間。除了了解待測物的穩定程度外,還可依照實際需要,再做控制線路的調整,達到設計的目的。維持良好的設計質量,加深客戶對設計者技術的信任,增進對產品的信心。尤其業界的激烈競爭,及要求交期非常短的情況下,環路分析儀的分析,將有很大幫助。
另外,也可以應用來驗證委外設計生產的電源供應器,對設計質量來把關。 頻率響應分析儀Bode100選,可以測試被動組件的阻抗和頻率的特性圖,例如ESR測試,讓廠商了解生產的被動組件特性是否正常,以驗證制程是否正確。另外設計工程師可用來驗證所使用的組件,其頻率響應特性是否適合于應用范圍。例如電容于低頻時是電容性,隨頻率增加會成為電阻性,再來會變成電感性。若選擇不當,可能使用的電容卻呈現電感特性,線路自然無法正確運作。當真正了解適用頻率范圍后,選擇正確零件才能達到設計效果,不會出錯 。
If the wide frequency range from 1 Hz to 40 MHz fits your needs the full beauty of the Bode 100 will impress you. With the Bode100 and the included Bode Analyzer Suite you are all set for your daily power supply and RF testing challenges.With Bode100 you are ready to measure
Stability analysis of open loops (Nyquist criterion)
Bode plots of control circuits
Complex gain of amplifiers and filters
Complex impedance and admittance
Swept S-parameters of electronic circuits (filters, amplifiers, bipolar transistors ... )
Influence of termination on amplifiers or filters
Frequency dependent impedance of high-Q circuits like oscillating crystals
Reflection coefficient and return loss
BODE100網絡分析儀,Bode100頻率響應分析儀,Bode100環路分析儀
Characteristic Rating
Wave form: Sinusoidal signal
Frequency range 10 Hz to 40 MHz (standard frequency range)*
1 Hz to 40 MHz (extended frequency range)*
*frequency ranges software switchable
Signal Level -27dBm to 13dBm
0.01VRMS to 1VRMS (at 50 Ohm load)
Accuracy of the source level (23°C +/-5°C) +/-0.3 dB (1Hz to 1MHz)
+/-0.6 dB (1MHz to 40 MHz)
Frequency response of the source level 1Hz to 40MHz +/-0.3dB (referred to 100kHz)
Frequency accuracy (23°C +/-5°C) +/-15ppm (<1 year after calibration)
+/-25ppm (<3 years after calibration)
Source impedance: 50 Ohm
Return loss (1Hz to 40MHz) > 28dB (VSWR < 1.09)
Spurious signals < -55dBc (typical)
Harmonics < -55dBc (typical)
Connector: BNC
Inputs: CH1, CH2
Input Impedance (high): 1MOhm +/-2% (by design)
Input capacitance: 40 to 55pF
Input Impedance (low): 50 Ohm
Return loss for low input impedance (1Hz to 40MHz) > 25dB (VSWR < 1.12)
Noise floor for the gain measurement Conditions:
Resolution bandwidth = 10Hz, select internal reference,
PSOURCE = 13dBm, 50O load at CH2, 20dB attenuators for
CH1 and CH2 1Hz to 5kHz: -100dB (typical)
5kHz to 50kHz: -110dB (typical)
50kHz to 20MHz: -115dB (typical)
20MHz to 40MHz: -110dB (typical)
Connectors BNC
Receiver bandwidth: 1Hz to 3kHz
Input attenuator: 0 dB, 10 dB, 20 dB, 30 dB, 40 dB
Input sensitivity: 100 mV full scale (for input attenuator 0 dB)
Dynamic range: > 100 dB (at 10 Hz receiver bandwidth)
Gain error: < 0.1 dB (calibrated)
Phase error: < 0.5o (calibrated)