MokuLab - Lock-in Amplifier - Amplificateur à Detection Synchrone

Description

La détection synchrone est une technique de traitement du signal hétérodyne permettant d’extraire des signaux de faible amplitude, mais à bande étroite, noyés dans du bruit important, à large bande, par multiplication du signal par un signal sinusoïdal de fréquence proche de celle de la fréquence moyenne à détecter.

Moku:Lab’s digital Lock-In Amplifier supports dual-phase demodulation (XY/Rθ) from 1 mHz to 200 MHz with up to 120  of dynamic reserve. It also features an integrated 2-channel oscilloscope and data logger, enabling you to observe signals at up to 500 MSa/s and log data at up to 1 MSa/s.

Points Clés

Measure XY or Rθ simultaneously relative to an internal or external reference
• Observe signals at different stages in the signal processing chain using probe points
• Demodulate signals at frequencies up to 200 MHz
• Reveal signals obscured by noise with more than 120 dB dynamic reserve
• Log data from any probe point at up to 1 MSa/s

Spécifications

Demodulate with frequencies ranging from 1 mHz to 200 MHz with 3.55 μHz resolution
• Phase shift precision of 0.001°
• 50 Ω / 1 MΩ input impedance
• Adjustable time constant from 32 ns to
0.537 s
• 6, 12, 18, or 32 dB/octave filter roll-off
• Output gain range: -80 to +160 dB
• LO output up to 200 MHz with variable
amplitude
• Ultra-fast data acquisition: snapshot mode
up to 500 MSa/s, continuous mode up to
1 MSa/s

 

Applications

  • Pump probe / ultrafast spectroscopy
  • Laser scanning microscopy (SRS, TA, etc)
  • Magnetic sensing (magneto-optical Kerr effect)
  • Laser frequency stabilization

 

Notes d'Applications et Articles Techniques

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