Smith P D, Davies W L
J Biomed Eng. 1979 Jul;1(3):211-4.
Studies of diabetic autonomic using the valsalva manoeuvre have previously utilized a strain gauge respiration monitor. The present paper describes a respiration follower for use in such work. This device was designed to be far less fragile and also to give a large, noise-free, output signal suitable for direct connection to a recording device.