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Amplifier Research FL7040 40 GHz Electric Field Probe View larger

Amplifier Research FL7040 40 GHz Electric Field Probe

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Test Equipment Description

The Amplifier Research FL7040 is a smart, fast, extremely accurate electric field probe that contains an internal microprocessor to provide linearization, temperature compensation, control, and communication functions. Noise reduction and temperature compensation allow accurate measurements down to 2 V/m without zero adjustment. When rotated about its ortho angle mount, the probe provides isotropic response of ±1.5 dB to 40 GHz.

The FL7040 is laser powered to allow for continuous operation without recharging or battery replacement. This probe requires an FI7000 for power and communication. FM7004A is recommended for local monitoring and control.

Correction factors are provided with the probe. These factors can be loaded into the Model FM7004A Field Monitor (sold separately) to automatically correct the probe readings at userspecified frequencies. When correction factors are applied, the true accuracy of the probe can be realized.

The Amplifier Research FL7040 communicates through glass fiber optic cables, up to 100 meters long, to the FI7000 interface. X, Y, Z, and isotropic readings can be returned through an FI7000 in 20 msec.

Typical Uncalibrated Frequency Response

Frequency Response: Amplifier Research FL7040 40 GHz Electric Field Probe

Frequency (MHz)
Typical Calibrated Frequency Response
(with correction factors applied)
Amplifier Research FL7040 40 GHz Electric Field Probe

Frequency (MHz)

Amplifier Research FL7040 Specifications

Amplitude Accuracy
(field aligned with sensor axes)
Without correction factors applied: ±1.0 dB @ 10 MHz

With correction factors applied: Typical expanded measurement uncertainty (95% confidence interval), 0.8 dB, 2 MHz–1 GHz; 1.4 dB, 1 GHz40 GHz
Response Time/Sampling Rate
(through FI7000)
20 msec/up to 50 samples per second at FI7000, USB and GPIB only
Isotropic Deviation
(measured at the ortho angle)
±0.5 dB @ 10 MHz; ±1.5 dB, 2 MHz–40 GHz (typical)
Operating Range2–1000 V/m
Linearity, 2 to 1000 V/m±0.5 dB
Temperature Stability+0.5 dB over operating temperature range
Damage Level1200 V/m CW
RangesSingle continuous range
Data returned from probeX, Y, Z axes, and composite
Power RequirementsLaser powered from FI7000 interface
DimensionsApprox. 278 x 65 x 65 mm (10.95 x 2.6 x 2.6 in)
WeightApprox. 150 g (5.3 oz)
Operating Temperature Range10°C to 40°C (50°F to 104°F) @ 5% to 95% RH noncondensing
Fiber Optic ConnectorsTwo E2000 compact duplex connectors at 1 meter, includes fiber optic verification loop.
Calibration DataAccredited Calibration Report (A2LA) supplied with probe

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