同步輻射裝置主信號源的擴展方法研究
電子技術(shù)應(yīng)用
張愷,韋業(yè)龍,陳秋菊,吳叢鳳,龐健,唐運蓋,杜百廷,張善才,馮光耀
中國科學(xué)技術(shù)大學(xué),安徽 合肥 230026
摘要: 主信號源是同步輻射裝置的關(guān)鍵組成部分之一,它不僅用于產(chǎn)生同步輻射光源各子系統(tǒng)所需的穩(wěn)定度極高的參考信號,還用于生成整個裝置的控制系統(tǒng)所需的高精度工作時鐘。一般使用射頻信號源作為主信號源,而商業(yè)射頻信號源一般只配備單輸出通道,遠遠不能滿足同步輻射裝置的需要,使用傳統(tǒng)功分器對主信號通道進行擴展又存在幅度衰減、精度下降且相位不一致的問題。為解決上述問題,利用射頻芯片AD9361,研究了對主信號源的單路輸出進行擴展的方法。
中圖分類號:TN62 文獻標志碼:A DOI: 10.16157/j.issn.0258-7998.234281
中文引用格式: 張愷,韋業(yè)龍,陳秋菊,等. 同步輻射裝置主信號源的擴展方法研究[J]. 電子技術(shù)應(yīng)用,2024,50(1):87-92.
英文引用格式: Zhang Kai,Wei Yelong,Chen Qiuju,et al. Research on the extension method of the main signal source of the synchrotron radiation device[J]. Application of Electronic Technique,2024,50(1):87-92.
中文引用格式: 張愷,韋業(yè)龍,陳秋菊,等. 同步輻射裝置主信號源的擴展方法研究[J]. 電子技術(shù)應(yīng)用,2024,50(1):87-92.
英文引用格式: Zhang Kai,Wei Yelong,Chen Qiuju,et al. Research on the extension method of the main signal source of the synchrotron radiation device[J]. Application of Electronic Technique,2024,50(1):87-92.
Research on the extension method of the main signal source of the synchrotron radiation device
Zhang Kai,Wei Yelong,Chen Qiuju,Wu Congfeng,Pang Jian,Tang Yungai,Du Baiting,Zhang Shancai,F(xiàn)eng Guangyao
University of Science and Technology of China, Hefei 230026, China
Abstract: The main signal source is one of the key components of the synchrotron radiation device. It is not only used to generate the highly stable reference signals required by each subsystem of the synchrotron radiation light source, but also used to generate the high-precision working clock required by the control system of the entire device. Generally, one RF signal source is used as the main signal source. But the commercial RF signal source generally has only one output channel, which is far from meeting the needs of the synchrotron radiation device, while the use of traditional power splitters to expand the main signal channel also suffers from amplitude attenuation, accuracy degradation, and inconsistent phase. In order to solve the above problem, the method of extending one channel output of microwave signal source with RF shortcut chip AD9361 has been proposed in the paper.
Key words : synchrotron radiation;main signal source;RF signal source;channel extension;AD9361;FPGA
引言
主信號源是同步輻射裝置的關(guān)鍵組成部分之一,它不僅用于產(chǎn)生同步輻射光源各子系統(tǒng)所需的穩(wěn)定度極高的參考信號,還用于生成整個裝置的控制系統(tǒng)所需的高精度工作時鐘,其性能決定著整個控制系統(tǒng)的性能[1]。
例如即將開工建設(shè)的第四代同步輻射光源——合肥先進光源(HALF),其超導(dǎo)主高頻系統(tǒng)提供的加速電場需滿足RMS≤0.1%的幅度穩(wěn)定度和RMS≤0.1°的相位穩(wěn)定度,這就意味著HALF超導(dǎo)主高頻系統(tǒng)的低電平控制器需達到0.01%的幅度穩(wěn)定度和0.01°的相位穩(wěn)定度[2]。要達到這一精度,低電平系統(tǒng)參考信號的質(zhì)量是極為關(guān)鍵的控制因素,這一參考信號就來自同步輻射裝置的主信號源[3]。除此之外,直線加速器系統(tǒng)、注入器系統(tǒng)、束流測量系統(tǒng)等子系統(tǒng)都需要主信號源提供其正常運行所需的參考信號或同步時鐘[4]。
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作者信息:
張愷,韋業(yè)龍,陳秋菊,吳叢鳳,龐健,唐運蓋,杜百廷,張善才,馮光耀
(中國科學(xué)技術(shù)大學(xué),安徽 合肥 230026)
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