Performance Analysis of Digital Flux-locked Loop Circuit with Different SQUID $V$-$ϕ$ Transfer Curves for TES Readout System
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arXiv
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| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866915820695715840 |
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| author | Li, Nan Ren, Xiang-xiang Li, Le-peng Song, Meng-jie Li, Hao-yu Shu, Shi-bo Li, Ya-qiong Zhang, Yong-jie Li, Xu-fang Gu, Yu-dong Liu, Cong-zhan Li, Hai-feng Gao, He Li, Zheng-wei |
| author_facet | Li, Nan Ren, Xiang-xiang Li, Le-peng Song, Meng-jie Li, Hao-yu Shu, Shi-bo Li, Ya-qiong Zhang, Yong-jie Li, Xu-fang Gu, Yu-dong Liu, Cong-zhan Li, Hai-feng Gao, He Li, Zheng-wei |
| contents | A superconducting quantum interference device (SQUID), functioning as a nonlinear response device, typically requires the incorporation of a flux-locked loop (FLL) circuit to facilitate linear amplification of the current signal transmitted through a superconducting transition-edge sensor (TES) across a large dynamic range.This work presents a reasonable model of the SQUID-FLL readout system, based on a digital proportional-integral-differential (PID) flux negative feedback algorithm.This work investigates the effect of $V$-$ϕ$ shape on the performance of digital FLL circuits.Such as the impact factors of bandwidth, design limits of slew rate of the system and the influence of the shapes of SQUID $V$-$ϕ$ curve.Furthermore, the dynamic response of the system to X-ray pulse signals with rise time ranging from $4.4{\sim}281$ $\mathrm{μs}$ and amplitudes ranging from $6{\sim}8$ $\mathrm{ϕ_0}$ was simulated.All the simulation results were found to be consistent with the existing mature theories, thereby validating the accuracy of the model.The results also provide a reliable modelling reference for the design of digital PID flux negative feedback and multiplexing SQUID readout electronic systems. |
| format | Preprint |
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arxiv_https___arxiv_org_abs_2502_03977 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Performance Analysis of Digital Flux-locked Loop Circuit with Different SQUID $V$-$ϕ$ Transfer Curves for TES Readout System Li, Nan Ren, Xiang-xiang Li, Le-peng Song, Meng-jie Li, Hao-yu Shu, Shi-bo Li, Ya-qiong Zhang, Yong-jie Li, Xu-fang Gu, Yu-dong Liu, Cong-zhan Li, Hai-feng Gao, He Li, Zheng-wei Instrumentation and Methods for Astrophysics A superconducting quantum interference device (SQUID), functioning as a nonlinear response device, typically requires the incorporation of a flux-locked loop (FLL) circuit to facilitate linear amplification of the current signal transmitted through a superconducting transition-edge sensor (TES) across a large dynamic range.This work presents a reasonable model of the SQUID-FLL readout system, based on a digital proportional-integral-differential (PID) flux negative feedback algorithm.This work investigates the effect of $V$-$ϕ$ shape on the performance of digital FLL circuits.Such as the impact factors of bandwidth, design limits of slew rate of the system and the influence of the shapes of SQUID $V$-$ϕ$ curve.Furthermore, the dynamic response of the system to X-ray pulse signals with rise time ranging from $4.4{\sim}281$ $\mathrm{μs}$ and amplitudes ranging from $6{\sim}8$ $\mathrm{ϕ_0}$ was simulated.All the simulation results were found to be consistent with the existing mature theories, thereby validating the accuracy of the model.The results also provide a reliable modelling reference for the design of digital PID flux negative feedback and multiplexing SQUID readout electronic systems. |
| title | Performance Analysis of Digital Flux-locked Loop Circuit with Different SQUID $V$-$ϕ$ Transfer Curves for TES Readout System |
| topic | Instrumentation and Methods for Astrophysics |
| url | https://arxiv.org/abs/2502.03977 |