![]() And the internal sensor is not perfectly linear with force. These are set by design but are not individually measured and the actual full scale force may vary by 10% or more. The maximum force is set approximately by the springs you choose. (On the low end the mechanical stiction of the moving part can affect the smoothness of the movement, so we recommend using springs below 100N only if your study demands that specifically.) Signal and Range notes We have found that 100N covers most cases well and uses the signal range more effectively. But this choice means that much of the signal range is not used except for the rather extreme high force cases. Some customers choose the 500N spring as a safe high number to cover strong users. Active light levels for handheld identification and gain adjustment. ![]() 10 ft (3 m) long fiber pigtailed connector.(2.5 cm) out from main enclosure maximum travel is 0.05 in. If a different maximum force is desired, please email Wide variety of outputs available for Windows, Mac and Linux computers, including several USB and Serial modes.Machined black enclosure with protruding force bar which moves in when gripped to produce a roughly linear force measurement output based on the pressure applied, with a range of 25N, 50N, 75N, 100N, 300N, or 500N (specified at time of order).Handheld for the FIU-932 and Birch interfaces.There is a less expensive, non-MR trainer available for this response pad for use outside the magnet room. It is non-magnetic, non-electronic, and entirely made out of plastic, so will not add noise to the images or raise safety concerns in the MR/MEG room or similarly demanding environments. Current Designs' fMRI grip force is the perfect choice for a wide range of computer response tasks used in the human brain mapping project. ![]()
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