Chapter 5 — Sensor Operational Tests
5-1 Introduction
The test methodology and equipment described herein can be used to gain some confidence in the measurement accuracy of the MA24106A Power Sensor. This is accomplished by comparing the sensor to another sensor with a specified cal factor and linearity performance or uncertainty. General commercially available equipment is used for these tests; however, these procedures are not sufficiently accurate to verify sensors to factory specification. Therefore, sensor test limits in these procedures are set appropriately to the specified comparison equipment. All tests should be performed at an ambient temperature of 20ºC to 25ºC.
Note: Calibration and verification of high accuracy Power sensors requires substantial investment in both skill and equipment. For calibration, calibration verification, and to maintain the factory specifications of your power sensor, please send sensors to qualified Anritsu Customer Service Centers.
Refer to the following sections for required equipment and test procedures:
•Required Equipment
•VSWR Pretest
•Calibration Factor Test
•Linearity Test
5-2 Required Equipment
Table
| Manufacturer and |
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Equipment Description | Model | Critical Specifications | |
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Vector Network Analyzer (Pretest) | Anritsu MS4624B | Reflection Coefficient |
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| or equivalent | Uncertainty ≤0.013 to 2 GHz | |
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| Uncertainty ≤0.020 to 6 GHz | |
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Synthesizer | Anritsu MG3692 | Output Power: >+20 dBm 0.05 to 6 GHz | |
(Cal. Factor and Linearity Tests) | or equivalent | Output Power Setting Resolution: 0.01 dBm | |
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| Harmonics: |
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| Source VSWR ≤2 |
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Reference Power Meter | Anritsu ML2438 | Instrumentation Accuracy | ≤ |
(Cal. Factor and Linearity Tests) | or equivalent | 0.5% | |
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Reference Power Sensor | Anritsu MA2422B | NIST Calibration or equivalent | |
(Cal. Factor and Linearity Tests) | or equivalent |
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10 dB K Attenuator | Anritsu | VSWR ≤1.15 to 6 GHz |
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(Linearity Test) |
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6 dB K Attenuator | Anritsu | VSWR ≤1.15 to 6 GHz |
|
(Cal. Factor Test) |
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Adapter N(f) to K(f) | Anritsu 34ANF50 and | VSWR ≤1.05 to 6 GHz |
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(Cal. Factor and Linearity Tests) | 34AS50 |
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Power Splitter | Anritsu K241B | Effective Output VSWR <1.45 to 6 GHz | |
(Linearity Tests) |
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Power Sensor Under Test | MA24106A | See Datasheet, | |
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Personal Computer | Any | See Chapter 2 |
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MA24106A UG |