Tabla de contenido
Idiomas disponibles
Idiomas disponibles
Measurement Tutorial
3
Errors in High Resistance Measurements
When you are measuring large resistances, significant errors can occur due to
resistance insulation and surface cleanliness. You should take the necessary
precautions to maintain a "clean" high-resistance system. Test leads and fixtures
are susceptible to leakage due to moisture absorption in insulating materials and
9
) when
"dirty" surface films. Nylon and PVC are relatively poor insulators (10
13
).
compared to PTFE insulators (10
Leakage from nylon or PVC insulators can easily contribute a 0.1% error when
measuring a 1 M resistance in humid conditions.
Offset Compensation
A resistance measurement involves measuring a voltage (E) induced across the
resistance by a known current source.
R
Ideal
E
I
Meter
Keysight 34450A User's Guide
105
Capítulos
Tabla de contenido
