HP 53132A Assembly And Service Manual page 240

Chapter 8 HP 53181A Specifications
Measurement Specifications (Continued)
Measurement Specifications (Continued)
Worst Case RMS Resolution
Automatic or External Arming:
1E+02
1E+00
1E-2
1E-4
1E-6
1E-8
1E-10
10 100 1000
Time or Digit Arming:
1E+02
1E+00
1E-2
1E-4
1E-6
1E-8
1E-10
10 100
The preceding graphs do not reflect the effects of trigger error. To place an upper bound on the added effect of this error term, determine the
frequency error from the appropriate graph and add a trigger error term as follows:
Automatic or External Arming
×
 2 Trigger Error
Frequency Error -----------------------------------------------
+

8-6
Auto Armed
1ms
10ms
100ms
1s
10s
Gate
Time
10000 100000 1000000 1E+07 1E+08 1E+09 1E+10
Input Frequency (Hz)
1ms
10ms
100ms
1s
10s
Gate
Time
1000 10000 100000 1000000 1E+07 1E+08 1E+09 1E+10
Input Frequency
Frequency

×
or

Gate Time
Period
Time or Digit Arming
×
 4 2
Frequency Error ------------------------------------------------------------------------------------------ -
+

×
Gate Time
Assembly-Level Service Guide
Frequency
×
Trigger Error 
×
or

Number of Samples
Period