BioSemi.nl

Hello,

I need to capture analog signal from a sensor device. I have an AIB box, but I am confused by what I have read on the webpage.
If I understood correctly, my AIB Box is useless for sample rates above 2kHz ?

What is the easiest way then to aquire information from my sensor on a EXG channel, in particular what is the voltage range and grounding procedure ?

Thank you

Alexandre

AIB can indeed only be used as 2 kHz sample rate. The EXG inputs can only be used for active electrodes.

Provided that your sensor can be kept galvanically isolated from the environment (only connected to ActiveTwo AD-box, and not to anything else), then you can probably interface with an ERGO input, see http://www.biosemi.com/accessoires.htm. The ERGO input is sampled at the same rate as the other (electrode) inputs, up to 16 kHz on speedmode 7.

Best regards, Coen (BioSemi)

Hello,

Thank you for your quick reply.
I do not have an ego input and my ports are already taken by a GSR/RESP port and an ABR port.
Is there another way that would allow me to do that ?
What about the GSR / Resp port, could I input some voltage to it ? My sensor is a Force Resistance Sensor.

Thank you and best

A.

There are several options:

- Sacrifice GSR/Resp and replace by ERGO
- Replace ABR connector by ERGO, and purchase extra AD-box (without top connectors) for ABR only.
- Replace CMS/DRL by ERGO, and use A-sets with integrated CMS/DRL.

In case of a strain-gauge type sensor, adding our miniature strain-gauge amplifier (http://www.biosemi.com/accessoires.htm) is recommended (extra preamp between sensor and ERGO input).

Please contact your local BioSemi representative to discuss the best option in your case.

Best regards, Coen (BioSemi)