Messgerät zur Messung einer elektrochemischen Größe

摘要

Apparatus for acquiring and displaying noise impulses during measurement of small high ohmic signals comprises an analogue/digital converter connected to the signal inlet; a signal evaluation unit for acquiring noise impulses exceeding the normal signal level; a storage unit; and a display unit . Apparatus for acquiring and displaying noise impulses during measurement of small high ohmic signals comprises an analogue/digital converter (2) connected to the signal inlet (1) for digitizing the signal; a signal evaluation unit (3) connected to the analogue/digital converter for acquiring noise impulses exceeding the normal signal level; a storage unit (4) for temporarily storing the acquired noise impulses; and a display unit (5) for graphically displaying the frequency of the noise impulses. An Independent claim is also included for a measuring device for measuring an electrochemical parameter, especially a pH meter. Preferred Features: A signal elongating unit for detecting short noise impulses is between the signal inlet and the analogue/digital converter. The signal evaluation unit acquires the noise impulses in number and amplitude.