SE2052 DSP Lock-In Amplifier (Dual-channel)

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SE2052 DSP Lock-In Amplifier (Dual-channel)

Overview Specifications Ordering Resources

SE2052 Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 1 μHz to 400 MHz. With the advantage of the latest digital signal processing technology and high-speed 1GSa/s 14-bit ADC, SE2052 can easily detect the phase and the magnitude of weak signals overwhelmed by various large noises. The performance of SE2052 is as good as other lock-in amplifiers all over the world, even better than them in some certain parameters, such as measurement accuracy, SNR, dynamic reserve, which meets the needs of scientific research and industrial application well.

SE2052 Unit Price: US$40,816.00

Key Features

1 μHz to 400MHz frequency

2 independent lock-in units

Dual signal generators

>120 dB dynamic reserve

4nV/√Hz input noise

Oscilloscope, spectrum analyzer

Automatic PID control

Oscilloscope Functions

The oscilloscope function features four signal channels, supporting selectable inputs—including signal input, reference input, signal output, and auxiliary I/O—and offers a variety of triggering modes to provide users with real-time displays of time-domain signals. It boasts a maximum sampling depth of 65,536 points and an adjustable sampling duration ranging from 65 µs to 1 s.
PID Controller

The SE2052 features a built-in, independent dual-channel digital PID controller with a sampling rate of up to 4 MSPS. Tightly integrated with the lock-in amplifier, the PID controller utilizes the demodulator’s measured values to control output signal parameters—such as amplitude, phase, and frequency—thereby enabling the precise regulation of various controlled variables.
Parameter Scanner

The parameter scanner provides users with convenient, rapid scanning capabilities, enabling the real-time plotting of curves such as frequency and amplitude responses, and offers both single-sweep and continuous-loop scanning modes.
FFT Spectrum Analyzer

The FFT spectrum analyzer analyzes the frequency-domain information of a signal based on waveforms captured by an oscilloscope. Depending on the sampling rate, the frequency resolution of the spectrum analyzer ranges from approximately 1 Hz to 15 kHz.

1. Dual Channel Signal Channel
Frequency range	1 μHz to 400MHz
Voltage input mode	Single-ended or Differential
Full-scale sensitivity	1 nV to 1 V
Impedance	50 Ω or 10 MΩ//15 pF, AC or DC coupled
Dynamic reserve	> 120 dB
Gain accuracy	0.5 % standard, 1% maximum
Equivalent input noise	4 nV/√Hz (> 100kHz)
Analog-to-digital conversion	14bit, 1GSa/s
2. Dual Reference Channel
Input	• Frequency range: 1 μHz to 400 MHz • Reference input: Square or Sine Wave • Input impedance: 50Ω or 10 MΩ//15 pF, AC or DC coupled
Harmonic detection	1 – 65535F (nF < 400MHz)
Acquisition time	• Internal ref.: instantaneous acquisition • External ref.: 100 signal cycles or 1.5 ms (>100kHz)
3. Two Signal Generators
Frequency range	1 μHz to 400MHz
Frequency resolution	1 uHz
Sine amplitude	• Sine amplitude: 1uVrms to 1.5 Vrms • Resolution: 1uVrms • Tolerance: 0.5% standard, 1% maximum • Temperature stability: 100 ppm/°C
Bias range	±3V
Output impedance	50Ω
4. Demodulator
Number	4
Input signal selection	Signal Channel CHA or Signal Channel CHB
Stability	• Digital output: no zero drift on all setting • Display: no zero drift on all setting
Time constant	25 ns to 4 ks
Measurement bandwidth	40uHz to 6MHz
Filter drop	6,12,18,24,30,36,42,48 dB/oct drop
5. Display
Screen	5.6-inch, 640 x 480 TFT color LCD screen
Screen format	Single-channel or dual-channel display
Display values	X,Y,R,θ values can be displayed on each channel
Display type	Digital display, bar graph
Color style	Yellow, Green
6. Auxiliary Inputs and Outputs
AUX inputs	• Function: 4-channel input • Amplitude: ±10 V, 0.1 mV resolution • Impedance: 1 MΩ
AUX outputs / CH outputs	• Function: 4-channel output • Amplitude: ±10 V, 0.1 mV resolution • Drive Current: ±30 mA max
Sync input/output	Function: 3.3V TTL external trigger for data storage
10MHz clock input/output	Function: Instrument clock input/output for multi-computer synchronization
7. Communication Interface
RS-232	Standard 9-array RS-232 female socket
USB2.0	USB2.0 high-speed communication interface
Enternet	1Gbps Gigabit network communication interface
Digital I/O	Bidirectional 16bit
8. General
Power requirement	• Voltage: 220 – 240 VAC • Power: 100 W typ, 120W max
Dimension	438 (W) × 147 (H) × 550 (D) mm
Weight	12 kg