神經生理及心臟電器學放大器系統

The Refa system

 

Refa 系統

 

From 24 to 272 channels

 

擁有24~272個頻道

 

The Refa is a multi-channel amplifier system for stationary use. The Refa includes unipolar electrophysiological inputs (ExG) but can also include a number of bipolar electro-physiological inputs (BIP) and auxiliary inputs (AUX)
 

Refa 是一個固定式多頻道的放大器。包括單極電生理輸入輸入（ExG），雙極2u輸入（BIP）和輔助輸入（AUX）的。

 

The unipolar electro-physiological inputs are configured as a reference amplifier: all channels are amplified against the average of all connected inputs. Using these channels, signals like: EEG, EMG, ECG, EOG, EGG etc. can be measured.

The bipolar electro-physiological inputs are used to measure two physiological signals differntailly to each other. Signals like ECG, EMG or EOG can be measured this way.
The auxiliary inputs can be used for measuring sensor signals like temperature, pH, respiration, movements, force, angle etc.. Each of these channels has a +5V and -5V output in order to use active sensors or sensor modules.

單極電生理輸入訊號如 : EEG, EMG, ECG, EOG, EGG etc。雙極電生理輸入訊號如 : ECG, EMG 和 EOG 。輔助輸入可用於測量傳感器信號，如溫度，pH值，呼吸，動作，力量，角度等。這些頻道中的每一個都有+5 V和-5V輸出以便使用主動式感測器或傳感器模塊。

 

The Refa system can be delivered with different number of input channels. Refa™s with 24, 32, 40, 72 and 136 channels are available. It is also possible to cascade two Refa™s, resulting in a total channel count of 272 channels. 

Refa系統可以提供不同的頻道數目。有24 , 32 , 40 , 72 和 136 頻道可供選擇。也可以連接兩格 Refa 總和為 272 頻道。

 

The Refa is delivered including an external power supply, which plugs into the mains socket.  The Refa is connected to a PC by means of a bi-directional glass fiber.  The systems with lower channel count (24, 32 or 40 channels) are deliverable with either a head or a row input configuration. The head configuration adheres to the electrode positions in the International 10-20 system as used in EEG (ElectroEncephaloGraphy) and EP (Evoked Potential) recordings.

 

 REFA連接到電腦，透過一個雙向的玻璃纖維。較低的通道數（24，32或40個頻道）。頭的配置遵循在國際10-20制電極EEG（腦電圖）和EP（誘發電位）的紀錄設置。

The design of the Refa integrates the true DC reference amplifier. The active shielding guarantees optimal signal quality, no mains or other interference and no movement artefacts. Since the system includes no hardware filtering, all amplifier channels are identical and can be used for any desired signal.

Refa的設計集成了真正的直流校正放大器。自動屏蔽，保證最佳的信號品質，沒有電源或其他干擾，沒有動作電赫干擾。由於該系統包括硬件濾波，所有放大器通道是相同的，可以使用任何所需的信號。
 

 

 
* no movement artifacts
* up to 136/272 channels
* digital trigger in
* head or row input configurations
* built-in impedance testing
* fiber optic isolation

 

* 沒有動作電赫干擾

* 多至136/272個頻道

* 數位輸入

* 輸入配置

* 內建組抗測試

* 光纖隔離