| http://www.w3.org/ns/prov#value | - If membrane 56 is defective, that is if pin holes or other defects reduce the impedance of the membrane, an apparent ?? pH signal will be derived across pH electrodes 60 and 60', supplied as an input signal to differential amplifier 76, differentiated by differentiator 82, and supplied to peak pick and hold amplifier 84.
|
