Informations de l’équipement

Rohde & Schwarz NRV-Z55 1081.2005.02 Indicateur de niveau
Fabricant:
Rohde & Schwarz
Modèle: NRV-Z55 1081.2005.02
Date: 1999
Catégorie: Mètres
Groupe: Indicateur de niveau
Description: Thermal Power Sensor 0 -40GHz
Informations:
                                    Power sensors NRV-Z51, NRV-Z52 and NRV-Z55 are thermal power
sensors for basic instruments NRVS, NRVD, URV35 and URV55.
They permit power measurement from 1 pW to 100 mW within the
frequency ranges DC ... 18 GHz (NRV-Z51), DC ... 26.5 GHz
(NRV-Z52) or DC ... 40 GHz (NRV-Z55) in systems having a
characteristic impedance of 50

The thermal conversion principle always permits measurements
of the RMS value independently of the waveform and
modulation of the test signal. Depending on whether the
measured value is output as a power and/or a power level or
as a voltage, the average power (and/or the equivalent power
level) or the RMS value of the voltage is displayed.

All measuring heads are d.c. coupled so that even power in
the audio-frequency range can be measured.
1.2	Design and Functioning

The power sensor contains a thermo-electric transducer made
of silicon by means of semiconductor technology. Due to the
power supplied, the 50-Q termination situated on it heats
up. immediately next to this resistor there is a
thermoelement generating a direct voltage proportional to
the heating. As termination and thermoelement are
dc-decoupled, the power sensors do not contain, coupling
capacitors. This means that even d.c. powers can be
measured, and there is no lower cut-off frequency below
which matching and frequency response deteriorate again.

The direct voltage generated by the thermoelement is
amplified by a low-noise amplifier of high sensitivity
within the sensor and supplied to the basic unit for further
processing.

All power sensors contain a data storage in which the
parameters obtained during calibration in ---prad u<Sion-a
re^tored-in a-narv-vola-tiie-memoryr^The-ba si
e-i-ns-trument-reads-out-these~data-arid ta kes account of
them when indicating the power measured.

Linearity correction of the measured values is effected
automatically with the aid of the correction coefficients
stored. For temperature correction, the temperature of the
measuring head is evaluated additionally via a temperature
sensor. For measurements with frequency response correction,
the measuring frequency must be entered via keyboard, remote
control interface or an analog control input.

Ces manuels sont disponibles pour les équipements ci-dessus :

Rohde & Schwarz -- NRV-Z55 1081.2005.02 -- Manuel de l'utilisateur
Nom de fichier: RohdeUndSchwarz-8110-Manual-Page-1-Picture
Type manuel: Manuel de l'utilisateur
Pages: 18
Taille: 336.77 Kbytes (344848 Bytes)
Langue: Anglais
Révision:
Numéro d’identification:
Date: 01 janvier 1999
Qualité: Document scanné, tous les lisible.
Télécharger date:
MD5: b6d572ae80c27e7fa264bd3869b20b55
Téléchargements: 51 depuis 14 décembre 2016
Informations:
1	Characteristics
..........................................................................................5

1.1	Application
................................................................................................................5

1.2	Design and Functioning
....................................................................5

2	Preparation for Use
........................................................................................6

3	Operation .............. ........
..............................................................7

3.1	Measuring by means of Power Sensors NRV-Z51, NRV-Z52,
NRV-Z55 ....	7

3.1.1	Power and Voltage
Measurement........................................................................7

3.1.2	Power Measuring Ranges
......................................................................................7

3.1.3	Measurement Rate and Noise
..............................................................................8

3.1.4	Zeroing
......................................................................................................................8

3.1.5	Frequency Response Correction
............................................................................9

3.1.6	Measurement of Modulated
Signals....................................................................9

3.2	Measuring Accuracy
................................................................................................11

3.2.1	Mismatch
....................................................................................................................11

3.2.2	Calibration Uncertainty
..........................................................................................11

3.2.3	Linearity Error
.................................................................................................12

3.2.4	Display Noise
............................................................................................................12

3.2.5	Zero Error
.....................................................12

3.2.6	Temperature
Effect.....................................................13

3.2.7	Errors of the Basic Unit
............................................................................................13

3.2.8	Maximum and RSS Error
........................................................................................13

3.2.9	Total Mismatch Uncertainty
..................................................................................14

4	Maintenance and Troubleshooting
..............................................15

4.1	Maintenance
.............................................................................................15

4.2	Troubleshooting
......................................................................................................15

4.2.1	Testing Sensor Sensitivity
........................................... 15

4.2.2	Testing SWR
....................................................... 15

5	Checking Rated Specifications
................................. 16
RohdeUndSchwarz-8110-Manual-Page-1-Picture
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