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Lock-In Amplifiers: Principle, Applications & Products | Saluki Technology
Release time :2026.06.29 Reading quantity:360

 How to Choose the Right Saluki Lock-in Amplifier?

  This page summarizes our full range of digital lock-in amplifiers, including key specifications, model comparisons and official datasheet downloads.

  These instruments deliver ultra-high sensitivity for weak signal detection in spectroscopy, quantum research and industrial testing.

 

High-performance digital lock-in amplifier product lineup

  Key Technical Features:
  • Frequency range covers DC to 800MHz
  • Noise as low as 2.5nV
  • Standard virtual oscilloscope and multiple demodulators
  • Includes PID control and FFT spectrum analysis
  • Modular, compact size adaptable to different application scenarios
  • 1 to 10 channels optional, suitable for different testing needs

 


♦ Product Specifications:

Model  Type Freq. Range Dynamic  Time constants Sensitivity Resource
SE1201 Compact size 50 mHz to 120 kHz >120 dB 1us to 3ks 1 nV to 1 V Datasheet
SE1022 Single-channel DC to 102 kHz >120 dB 10 μs to 3 ks 1 nV to 1 V Datasheet
SE1022D Dual-channel DC to 102 kHz >120 dB 10 μs to 3 ks 1 nV to 1 V Datasheet
SE2011 Single-channel DC to 250 kHz >130 dB 100 ns to 3 ks 1 nV to 5 V Datasheet
SE2012 Dual-channel DC to 250 kHz >130 dB 100 ns to 3 ks 1 nV to 5 V Datasheet
SE2021 Single-channel DC to 1.5 MHz >130 dB 100 ns to 3 ks 1 nV to 5 V Datasheet
SE2022 Dual-channel DC to 1.5 MHz >130 dB 100 ns to 3 ks 1 nV to 5 V Datasheet
SE2031 Single-channel DC to 10 MHz >120 dB 100 ns to 3 ks 1 nV to 2 V Datasheet
SE2041 Single-channel DC to 80 MHz >120 dB 100 ns to 3 ks 1 nV to 2 V Datasheet
SE2052 Dual-channel DC to 400 MHz >120 dB 25ns to 4.4 ks 1 nV to 2 V Datasheet
SE1300 Modular DC to 1 MHz >130 dB 1us to 3ks 1 nV to 5 V Datasheet
SE1354 3 to 8 channels DC to 100/500kHz/1MHz >130 dB 1us to 3ks 1 nV to 5 V Datasheet

   

♦ Explanation:

 • Saluki’s SE1022, SE2011, and SE2021 are general-purpose, high-precision, low-noise input models designed for scientific research.
 • Saluki’s SE1022D, SE2012, and SE2022 are dual-channel input models featuring dual-channel high-precision, low-noise signal detection and dual-channel.

 • Additionally, the compact SE1201 and the modular SE1300 and SE1354 models are available to meet the requirements of various application scenarios.
 • The aforementioned series are classified as low-to-medium frequency lock-in amplifiers, whereas the SE2031, SE2041, and SE2052 (dual-channel) are medium-to-high frequency models, capable of operating at frequencies up to 400 MHz.
 • When measuring lower frequencies—such as 2 kHz—it is advisable to select a low-frequency lock-in amplifier to achieve a higher signal-to-noise ratio.


   

♦ Typical Applications:

      •  Optical Experiments       •  Biomedical Applications 
      •  Sensing and Measurement       •  Electrochemical Measurement 
      •  Scanning Microscopy         •  Impedance Measurement
      •  Materials Science  

   

♦ FAQ:

    1. Definition and Core Functions of Lock-In Amplifiers.

    2. Key Performance Parameters of Lock-In Amplifiers Explained.

    3. Common Noise Categories in Electronic Measurement System.

    4. Core Advantages of Digital Over Traditional Analog Lock-In Amplifiers.

    5. Signal Input Mode Selection and Noise Suppression Solutions.

    6. USB Connection Setup Guide for Lock-In Amplifiers on Windows.

    7. Typical Application Fields and Use Cases of Lock-In Amplifiers.

    8. Parameter Configuration for Fast-Changing Amplitude Signal Measurements.

    9. Feasibility of Non-Sinusoidal Periodic Signal Detection With Lock-In Amplifiers.

    10. Applicable Scenarios for Reference-Free Lock-In Measurement.

    11. Selection Principles for Internal vs. External Reference Modes.

    12. Weak DC Signal Detection Solutions for AC-Only Lock-In Amplifiers.

    13. Measurable Parameters and Information Extraction of Lock-In Amplifiers.


♦ Need technical support or a custom solution? Contact our application engineers: saluki@salukitec.com.

♦ To request a quotation, please contact sales@salukitec.com or click “Contact Us to leave a message.

 

♦ Related Products

     1. SE3001 Optical Chopper

SE2041 digital lock-in amplifier front view

 

Module Frequency Description Resource
SE3001 1 Hz to 10 kHz Standard blade needs to be purchased separately. Datasheet

     

     2. SE4102 Dual Current Preamplifier

Lock-in amplifier for stimulated Raman scattering imaging

Module Frequency Description Resource
SE4102 DC-50MHz 2 channels, Dual Current Preamplifier Datasheet

 

     3. SE4002 FET Input Preamplifier

Lock-in amplifier working principle phase-sensitive detection diagram

Module Frequency Description Resource
SE4002 10 MΩ input impedance FET Input Preamplifier Datasheet

♦ Need technical support or a custom solution? Contact our application engineers: saluki@salukitec.com.

♦ To request a quotation, please contact sales@salukitec.com or click “Contact Us” to leave a message.

Saluki Technology