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MSO8104A - Measurement Accuracy (SUBT, ADD)

Question asked by cwosnitza on Aug 27, 2007
Latest reply on Sep 11, 2007 by marowley
Hallo,
I have some questions according to the accuracy of the measurement functions:

1. What is the accuracy for a subtraction of two channels using
":FUNCtion<N>:SUBTract <operand>,<operand>" command:
a) dc Voltage Measurement Accuracy, Dual Markers = ±[(dc gain accuracy)+ (resolution)]
b) dc Voltage Measurement Accuracy, Single Marker = ±[(dc gain accuracy) + (offset accuracy) + (resolution/2)]

2. What is the accuracy for the sum of two channels using
":FUNCtion<N>:ADD <operand>,<operand>" command:
a) dc Voltage Measurement Accuracy, Dual Markers = ±[(dc gain accuracy)+ (resolution)]
b) dc Voltage Measurement Accuracy, Single Marker = ±[(dc gain accuracy) + (offset accuracy) + (resolution/2)]

The Programmer's Reference gives no information about the accuracy of the implemented functions and measurements at all and the description in the data sheet is not clearly understandable.

Regards,
Christoph  

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