Product description:
The signal and system training box provides the experimental means of frequency domain and time domain analysis of the signal, it can be used to analyze step response and impulse response in time domain; analysis and research of signal spectrum, signal decomposition and
synthesis; AM modulation and demodulation, FDM frequency division multiplexing; analysis and research of continuous time system simulation and sampling theorem and signal recovery;
realizes the transient response of first and second order circuits, second-order network state trajectory display, and various filter designs and implementations. The platform is designed in modular form, divided by functional units, and the circuit principle is clear at a glance. System features:
1. Circuit modular design: The experimental units are all divided by modules, and the experimental names correspond to the module names. The circuit inside the module is drawnat the corresponding position, so that the experimenter can see it at a glance.
2. Compact structure, stable and reliable performance; strong expansibility, you can design your own experimental circuit.
3. Optional Proteus simulation software can simulate various functional circuits in the simulation signal system; at the same time, adapt to virtual instruments such as oscilloscope, logic analyzer and signal generator to facilitate the analysis and research of the circuit to improve the comprehensive ability of students.
System composition:
1. Power input module:
Provides +5V/1.0A, -5V/0.5A, +12V/0.5A, -12V/0.5A power output. When equipped with LH-DB power protection board, there is undervoltage, overvoltage , overcurrent and short circuit alarm functions. When a fault occurs, the system power is automatically cut off; after the fault is removed, it is automatically restored.
2. Signal source module:
Provides five kinds of waveform signals: sine wave, triangle wave, square wave, rectangular wave, and sweep signal. The frequency range of the signal: 9Hz-100KHz, divided into four frequency bands. The frequency, amplitude, duty cycle and sweep speed of the signal are adjustable.
3. Frequency meter: Four digit display, measuring range 1Hz-300KHz, range automatic switching.
4. Millivolt meter: Three and a half digit display, measuring range 0 ~ 10V, frequency range 0 ~100KHz.
5. Analog filter module
6. Distortionless transmission system
7. First-order circuit transient response module
8. Second-order circuit transmission characteristic module
9. Second-order network status track module
10. Second-order circuit transient response module
11. Step response and impulse response module
12. Sampling theorem module
13. AM modem module
14. FDM frequency division multiplexing module
15. Signal decomposition and synthesis module
16. Circuit component expansion zone
17. Experimental box: Aluminum alloy material, green and environmentally friendly, beautiful appearance. Reference dimensions: 440 × 340 × 100mm.
Basic experiments:
1. Basic arithmetic unit experiment
2. Step response and impulse response experiment
3. Simulation experiment of continuous time system
4. Active, passive filter experiment
5. Sampling theorem and signal recovery experiment
6. Transient response experiment of first-order circuit
7. Second-order circuit transmission characteristic experiment, second-order network state trajectory display experiment, second-order circuit transient response experiment
8. Simulation experiment of second-order network function
9. Decomposition experiment of rectangular pulse signal and synthesis experiment of rectangular pulse signal
10. Effect of harmonic amplitude on waveform synthesis
11. AM modulation and demodulation
12. FDM frequency division multiplexing experiment
13. Distortionless transmission of signal
