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 5-1.Required Equipment

 

Manufacturer and

 

 

Equipment Description

Model

Critical Specifications

 

 

 

 

Vector Network Analyzer (Pretest)

Anritsu MS4624B

Reflection Coefficient

 

 

or equivalent

Uncertainty 0.013 to 2 GHz

 

 

Uncertainty 0.020 to 6 GHz

 

 

 

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

 

 

Harmonics: –40 dBc

 

 

 

Source VSWR 2

 

 

 

 

 

Reference Power Meter

Anritsu ML2438

Instrumentation Accuracy

(Cal. Factor and Linearity Tests)

or equivalent

0.5%

 

 

 

 

 

Reference Power Sensor

Anritsu MA2422B

NIST Calibration or equivalent

(Cal. Factor and Linearity Tests)

or equivalent

 

 

10 dB K Attenuator

Anritsu 41KC-10

VSWR 1.15 to 6 GHz

 

(Linearity Test)

 

 

 

6 dB K Attenuator

Anritsu 41KC-6

VSWR 1.15 to 6 GHz

 

(Cal. Factor Test)

 

 

 

Adapter N(f) to K(f)

Anritsu 34ANF50 and

VSWR 1.05 to 6 GHz

 

(Cal. Factor and Linearity Tests)

34AS50

 

 

Power Splitter

Anritsu K241B

Effective Output VSWR <1.45 to 6 GHz

(Linearity Tests)

 

 

 

 

 

 

Power Sensor Under Test

MA24106A

See Datasheet, 11410-00424

 

 

 

 

Personal Computer

Any

See Chapter 2

 

 

 

 

 

MA24106A UG

5-1

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Anritsu MA24106A, 0701012 manual Sensor Operational Tests, Required Equipment