Agilent Technologies 8481B Manual do Utilizador descarregar pdf (Página 11)

E-Series CW power sensor speciﬁcations (continued)

Power linearity

General

Table 6

Power Temperature (25 °C ±5 °C) Temperature (0 °C to 55 °C)

±3%

±4.5%

–70 –35 –20 –10 +10 +20

±4%

+3%

100 pW to 10 mW

(–70 dBm to +10 dBm)

10 mW to 100 mW

(+10 dBm to +20 dBm)

Power Level Used as Reference (dBm)

Figure 1. Relative mode power measurement linearity with EPM Series power meter/E-Series CW power

sensor at 25 °C ± 5 °C (typical)

The chart in Figure 1 shows the typical

uncertainty in making a relative power

measurement, using the same power

meter channel and the same power

sensor to obtain the reference and the

measured values. Example A illustrates

a relative gain (ampliﬁer measurement).

Example B illustrates a relative loss

(insertion loss measurement). This chart

assumes negligible change in frequency

and mismatch occur when transitioning

from the power level used as the

reference to the power level being

measured.

Example A:

P = 10(P)/10 x 1 mW

P = 10 6/10 x 1 mW

P = 3.98 mW

3% x 3.98 mW = 119.4 μW

Example B:

P = 10 (P)/10 x1 mW

P = 10 -35/10 x 1 mW

P = 316 nW

3% x 316 nW = 9.48 nW

where P = power in Watts,

and (P) = power in dBm

Dimensions:

E4412A:

130 mm L x 38 mm W x 30 mm H

E4413A:

102 mm L x 38 mm W x 30 mm H

Weight: 0.18 kg (0.4 lb).

+20

+10

–20

–35

–70

Power Level Being Measured (dBm)

±7%

±10%

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 20 21

Comentários a estes Manuais

Sem comentários

Agilent Technologies 8481B Manual do Utilizador Página 11

Comentários a estes Manuais

Manuais e produtos relacionados com Multímetros Agilent Technologies 8481B