多工切換器

功能多工切換，無限可能

從 32 到 256 甚至更多通道，這些多工切換器（multiplexers）是任何序列多通道阻抗量測配置的最佳選擇。具備完全無限制的任意對任意通道分配，您可以配置任何 2、3 或 4 接點組合。創新的 SC98 連接標準讓您在應用連接上擁有絕對彈性。

「這些多工切換器非常適合高品質阻抗量測。」

要擴展通道數量從未如此簡單。您可以將多工切換器外接至任何具 ExtensionPort 的儀器，或選擇多工器與儀器整合的版本。若應用需使用多個接點、電極、感測器等，但不需要並行讀取，我們的多工切換器將是完美選擇。

任意通道對任意通道分配——無限可能！

是否曾遇過這樣的困境：要將感測器的通道對應到多通道裝置，卻總是受限於配置條件？甚至得在量測間手動更換線路來解決？好消息來了：這些煩惱將成為過去！我們的任意對任意多工器擺脫了傳統多工配置的限制，讓您完全自由地分配通道，不再需要為接線與配置絞盡腦汁。通道分配變得輕鬆愉快，還能開啟許多新應用可能，例如端口極性切換、在固定感測位置變換電流路徑、固定激發點並掃描電位或阻抗映射、多端口元件分析、甚至是任何您想像得到的應用！這些多工器都能勝任。並可以輕鬆實現 EIT的電流注入模式，並結合我們阻抗分析儀中的 EIT 測量選項，進一步對量測數據進行影像重建。

SC98 連接標準帶來的彈性連接性

在多通道設定中，連接感測器與量測設備可能是一大挑戰。當然您可以使用我們的同軸分線纜（例如每通道一條 MCX），但這可能不夠便利。因此，我們設計了 SC98 —— 以「易用與設計自由」為核心的邊卡連接標準。SC98 連接標準除了易於使用之外，亦提供經濟和彈性的客製化選項。

• 想接特定纜線或接頭標準？我們可提供 SC98 基礎轉接頭，您也能自製。設計資料我們可開放或協助客製設計。
• 若您使用多通道感測器，您可以將以印刷電路板（PCB）為基礎的感測器載板，直接連接到 SC98 介面。如果您打算自己設計，我們亦提供佈線設計範例與測試用感測器，讓您可以快速上手。或者您也可以直接購買我們現成的載板，然後整合設計您的感測元件進去。
• 高階需求？沒問題，我們的 MEArack 建基於 SC98，並可連接到 MUX64 或 CSX-64。
• SC98 對 SC98 的連接線讓您能輕鬆延長多工器與感測器/轉接器之間的連接距離。
• 想在您的配置加入交流耦合、或其他濾波/網路保護？SC98 也能輕鬆實現。

卓越的切換特性

相比傳統半導體開關或機械電驛，Sciospec 多工器採用高隔離、超低寄生切換元件並具備超強表現：

• 電源關閉或軟體斷路狀態下隔離 >10 TΩ ||0.4 pF
• 寄生電容極低：< 0.7 pF，幾乎不對量測電路造成負載
• 連接狀態下的串聯電阻最大為 200 mΩ
• 開通狀態下完全無漏電流
• 無電荷注入、無失真、除熱雜訊外無其他雜訊

ExtensionPort 系統

為了靈活擴展應用範圍，可透過 ExtensionPort 連接應用專用前端模組與轉接器。該介面與規格對使用者完全開放，大幅簡化ISX-3、ISX-3mini或ISX-5使用者自行開發的流程。ExtensionPort 連接器支援2、3、4 電極測量訊號、電源軌、及數位輸入/輸出，並可選擇設定為 I2C、UART 等序列介面。

主要特點

• 支援任意對任意的功能性多工切換模組
• 預設提供 32 與 64 通道版本，可選擇擴展至 128、256 甚至更多
• 無通道分配限制，適用於您能想像的任何多通道配置
• 高隔離、超低寄生的切換元件，對量測的影響降到最低
• 最適用於 2、3、4 電極組態中的高精度、高頻寬電阻抗量測
• 提供兩種形式：
• 可透過 ExtensionPort 外接至任一Sciospec儀器
• ISX-3 與 ISX-5 阻抗分析儀的整合型版本
• 透過我們的預設 SC98 邊卡式連接標準，提供多種測量端子連接方式，包括介面卡、感測器載板、同軸纜線轉接線等，並可自訂設計連接方式
• 具 4 組數位 IO，透過 Sciospec InterfacePort 標準提供高度彈性輸入/輸出功能

Functional multiplexing with endless possibilities

Ranging from 32 to 256 and more channels these multiplexers are the perfect choice for impedance measurements in any sequential multichannel setup. With constraint free any-to-any port assignments you can configure any 2, 3 or 4 port combination you need. The innovative SC98 connection standard gives you full flexibility for connecting to your application.

“These multiplexers are the perfect fit for high quality impedance measurements.”

Scaling up channel count has never been easier. Just connect the multiplexer externally to any of our instruments with and ExtensionPort or have it fully integrated with the instrument. For applications that require multiple ports, electrodes, sensors, etc. but don´t need parallel readout our multiplexers are the perfect fit.

Any to any port assignments - nothing is impossible!

Did you ever find yourself in a situation where you had to solve the puzzle of assigning your sensor ports to a multichannel device but kept running into constraints? Maybe you even resolved to manually reconfiguring cables in between measurements to cope with this? Good news: These times are over! Freeing you of all channel assignment constraints as seen in conventional multiplexer arrangements, our any-to-any multiplexers give you complete freedom and take out the hassle and riddling of the port assignment and configuration process. Assigning ports becomes a breeze! Additionally, this opens up a world of new possibilities: switching polarities on ports, moving current paths on fixed sensing positions, fixed excitation points and scanned potential or impedance mapping, multiport component analysis, or anything else you can imagine. These multiplexers can do it. EIT style injection patterns are just as easily realized and combined with the EIT measurement option in our impedance analyzers you can do image reconstruction on top of your data.

Flexible connectivity through our SC98 connector standard

Connecting multichannel setups and sensors to measurement equipment can be a challenge. Of course, you can just get one of our breakout cables that gives you one coaxial connection line (e.g. MCX) per port on the multiplexer. But oftentimes this results in cumbersome handling and the application calls for a more sophisticated solution. That´s why we designed our SC98 standard with ease of use and design freedom at the core. The SC98 edge card based connection standard is easy to use, enables cost optimized customization and allows for highly flexible connectivity options.

• Want to connect to a specific cable or connector standard? We build our cable adapters based on SC98 and so can you. Either choose from our range of standard connectors or build your own. We make the design data available to your team or build a custom design for you.
• For those of your working with multichannel sensors – you can connect a PCB based sensor carrier directly to SC98. We have example layouts and test sensors available to get you started if you want to design you own or you can simply get one of our carriers and design your sensor into it.
• More demanding requirements? Not a problem for our SC98 standard. For example, check out our MEArack building on SC98 to connect to a MUX64 or CSX-64.
• We have SC98 to SC98 cables allowing you to very simply extend the connection path between the multiplexer and your sensor or adapter.
• Want to add AC coupling or other filtering/protection networks to your setup? Nothing easier than that with SC98.

Superior switching characteristics

High isolation, ultra-low parasitic switches with superior performance compared to conventional semiconductor switches or mechanical relays

• >10 TΩ || 0.4 pF isolation at power off or software selected cell disconnect
• extremely low parasitic capacitance < 0.7 pF offers close to no cell loading
• max. series resistance 200 mΩ in connected state
• zero leakage current in on state
• zero charge injection, no distortion, no noise contributions beyond thermal noise

ExtensionPort System

For flexible extension of its application possibilities application specific frontends and adapters can be connected to many of our instruments through the ExtensionPort system. Interface and specifications for the ExtensionPort are fully user accessible dramatically simplifying customer`s developments for and with systems like the ISX-3, ISX-3mini or ISX-5. The connector carries measurement signals for 2,3 and 4-electrode configuration, supply rails and digital IOs, which can optionally be configured as serial interfaces (I2C, UART).

Key facts

• multiplexer modules with any to any functional multiplexing
• 32 and 64 ports as default versions with the option to extent to 128, 256 and beyond.
• constraint free port assignments for any multichannel setup you can imagine
• high isolation, ultra-low parasitic switches for minimum impact on your measurements
• perfect for high accuracy, high bandwidth electrical impedance measurements in 2, 3 and 4 electrode configurations
• available as
• external units connecting to any of our instruments with an extension port
• integrated option for the ISX-3 and ISX-5 impedance analyzers
• flexible choices of connectors for measurement ports through our default edge-card based SC98 connector standards including a range of adapter cards, sensor carriers and coaxial break out cables as well as full design freedom for custom connection schemes.
• 4 digital IOs with highly flexible IO functions through the Sciospec InterfacePort standard