| Presentation | 2012-07-19 Multiplexing Techniques for Read-Out Superconductive Sensor System Based on Single Flux Quantum Circuits Kazuki AOKI, Yuki YAMANASHI, Nobuyuki YOSHIKAWA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Time division multiplexing (TDM) and code division multiplexing (CDM) have been investigated for a superconductive sensor system using single flux quantum (SFQ) read-out circuits. By using SFQ binary counters, which counts the number of output SFQ signals from each sensor, the data can be multiplexed and transferred using a few connection wires from the low-temperature environment to room-temperature equipments. We have evaluated performances of the multi-channel superconductive sensor system on the basis of analog circuit simulation. Assuming a 32-channel digital SQUID magnetometer and the TDM, the number of connections and the slew rate of the input magnetic flux are estimated to be 11 and 4.0×10^9Φ_0/s, respectively. If we employ the CDM, the slew rate can be improved up to 1.0×1O^<11>Φ_0/s though the number of connection is increased to 26. We have tested 2-channel digital SQUID system, which can perform the TDM by SFQ 4-bit up/down binary counters, and confirmed its correct operation. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Superconductive sensor / Time division multiplexing / Code division multiplexing / Digital SQUID / Single flux quantum circuit |
| Paper # | SCE2012-16 |
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| Conference Information | |
| Committee | SCE |
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| Conference Date | 2012/7/12(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Superconductive Electronics (SCE) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Multiplexing Techniques for Read-Out Superconductive Sensor System Based on Single Flux Quantum Circuits |
| Sub Title (in English) | |
| Keyword(1) | Superconductive sensor |
| Keyword(2) | Time division multiplexing |
| Keyword(3) | Code division multiplexing |
| Keyword(4) | Digital SQUID |
| Keyword(5) | Single flux quantum circuit |
| 1st Author's Name | Kazuki AOKI |
| 1st Author's Affiliation | Yokohama National University() |
| 2nd Author's Name | Yuki YAMANASHI |
| 2nd Author's Affiliation | Yokohama National University |
| 3rd Author's Name | Nobuyuki YOSHIKAWA |
| 3rd Author's Affiliation | Yokohama National University |
| Date | 2012-07-19 |
| Paper # | SCE2012-16 |
| Volume (vol) | vol.112 |
| Number (no) | 138 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |