Performance Tests
Zero Test
Zero Test
Specification
Electrical Characteristics | Performance Limits |
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Accuracy: Zero set (Digital settability of zero) | ±0.0764 ∝W1 |
1.This performance limit is determined by the zero set specification of the power
sensor used in the measurement plus the measurement noise. The range calibrator has a zero set specification of ±0.05 ∝W. The calibrator measurement
noise specification is 110 nW at 16 averages. At 512 averages a noise multiplier of 0.24 is required, giving a measurement noise specification of 0.0264 ∝W (0.24x512).
Description
After the power meter is initially calibrated and zeroed, the change in the digital readout is monitored. This test also takes drift and noise into account, since drift, noise and zero readings cannot be separated.
Equipment
Range Calibrator | Agilent 11683A |
Power Sensor Cable | Agilent 11730A |
Test Setup
Power Meter
Range
Calibrator
CHANNEL A | POWER |
| METER |
| Agilent 11730A |
Figure 2-1: Zero Test Setup
Agilent E4418B/E4419B Service Guide |
