DYJSD-790D Electronic Technology Experimental Platform

The electrical and electronic power drag comprehensive experimental system absorbs the advantages of advanced teaching instruments at home and abroad, fully considers the current situation and future development trends of the laboratory , and innovates in terms of performance and structure. It adopts a hanging box structure, which is simple and clear. Reasonable layout, convenient and flexible use. The experimental instruments have fully digital display and high precision. The power supply and instruments involved in the experiment are reliably protected. At the same time, a reliable personal safety protection system is set up. This experimental device has excellent performance and is the first choice for laboratories in major technical secondary schools. best choice.
Purpose: Suitable for experimental teaching of courses such as "digital electronics" and "analog electronics" in colleges and universities. And can expand the experimental content such as "programmable controller" and " motor frequency conversion control".

Simulation experiment software:

1. Electricity safety and electric shock first *d virtual simulation system (demo and copyright certificate provided): The software uses a virtual screen that combines two-dimensional and three-dimensional to teach students the safety of electricity and first *d methods. The software has single-phase electric shock, two-phase electric shock, and two-phase electric shock first *d. Principles of electric shock, step-over electric shock, low voltage electric shock first *d, high voltage electric shock first *d, artificial respiration rescue method, holding hands breathing rescue method, chest heart compression rescue method, etc., single-phase electric shock rep*r live disconnection, rep*r socket electric shock, outdoor Demonstration of principles such as electric shock. The teaching of low-voltage electric shock and high-voltage electric shock m*nly expl*ns and demonstrates to students how to rescue people who are suffering from low-voltage electric shock or high-voltage electric shock. Artificial respiration rescue method, hand-holding breathing rescue method, and chest cardiac compression rescue method are demonstrated using 3D virtual simulation technology. After rendering and Polish it to make the model look like the real part and look realistic. Through practical tr*ning, students can be educated on the safe use of electricity in the tr*ning room, improve students' safety awareness, and enable students to learn some self-rescue methods, so that students can take cert*n safety measures to protect themselves when encountering danger, and become familiar with various Causes of electrical accidents and practical measures to deal with them to reduce the occurrence of electrical accidents.

2. M*ntenance of electricians, electronic motors and vocational qualification tr*ning assessment simulation software (providing demonstration and copyright certificate): The software content includes common sense of safe electricity use, electrician tools, electrician diagrams, electrician instruments, electrician lighting circuits, motors, transformers, low-voltage electrical appliances, Electric mops, oscilloscopes, low-frequency signal sources, welding processes, SMT technology, electronic product manufacturing processes, troubleshooting, wiring, three-dimensional disassembly and assembly of reducers, disassembly and assembly of shafting mechanisms (including cylindrical gear shafting, bevel gear shafting, worm shaft Department and more than ten experiments) and other modules, schools can select corresponding tr*ning modules for tr*ning according to students' learning progress.

3. Three-meter simulation software (demo and copyright certificate provided): This software is in apk format and can be used on PC or mobile terminals. The functions of this software are: measurement of resistance and measurement of AC voltage ( Measuring the transformer, if the multimeter burns out when measuring the transformer, black smoke will appear and the multimeter can be reset), transistor polarity judgment, DC voltage measurement (the light will turn on when the ammeter is turned on), DC current measurement, and capacitance is good. Bad judgment. This software can drag the red and black pen tips at will. When the two pen tips are dragged and positioned on the object to be measured, a red circle will be displayed. If the positioning is not accurate, no red circle will be displayed, and when incorrect operations are performed (such as the wrong range selected, If the measured data is wrong, etc.), the meter pointer will be unresponsive, prompting errors and re-measurement, etc. This multimeter can select AC voltage range, DC voltage range, resistance range, current range, resistance adjustment to 0, and can enlarge the display data. Clearly view the measured data size. Students can learn the correct use of multimeters through this software.

4. Teacher teaching design system (provides demonstration and copyright certificate): This system is in apk format and can be used on PC or mobile. This system can set faults manually or automatically. This system has passed The green box in the circuit diagram selects manual setting of fault points (up to 39 fault points can be set), or the system can automatically set one random fault point, two random fault points, three random fault points, and four random fault points automatically. Fault point setting, five random fault point settings. This system has toolbox, component library, magnifying glass, circuit diagram and other functions. You can choose a multimeter for detection through the toolbox, select appropriate components through the component library, and you can clearly see the results through the magnifying glass. Understand the various components and circuits. This system allows students to understand the working principle and circuit structure of the motor star-delta start control circuit through the setting of faults in the motor star-delta start control circuit and various investigations.

2. Features:

  1. Strong comprehensiveness: It integrates all experimental projects of basic electronic courses in various domestic schools.
  2. Strong adaptability. The depth and breadth of experiments can be flexibly adjusted according to needs, and popularization and improvement can be organically combined according to the teaching process. The device has a building block structure and is easy to replace. Add parts to expand functions or develop new experiments.
  3. Strong complete set: Instruments, special power supplies, and special wires for experimental connections are all fully equipped. The performance, accuracy, and specifications of the instruments are closely combined with the needs of the experiment.
  4. Strong consistency. Reasonable selection of experimental devices and complete supporting facilities ensure that multiple sets of experimental results have good consistency, making it easier for teachers to organize and guide experimental teaching.
  5. Strong intuitiveness: This device adopts a structure that combines the whole body with pendants. The power configuration and instruments are clear at a glance. The tasks of each experimental pendant are clear, and the operation and m*ntenance are simple.

3. Technical indicators and description:

1. Overall dimensions: 1600x700x1530mm

2. Working power supply: AC three-phase four-wire 380±5% 50HZ

3. Input power: <1.5KVA

4. Output AC power: three-phase four-wire 380V.

5. Personal safety protection functions: current-type leakage protection, voltage-type leakage protection and anti-electric shock experimental wires.

6. DC regulated power supply: two sets of 0--30V continuously adjustable, automatic relay shifting, digital meter display, automatic overload protection, indication and automatic recovery functions.

7. Constant current source: 0--200mA continuously adjustable, digital meter display, open circuit protection.

8. Timer and alarm recorder: The power control panel is equipped with a timer and alarm recorder, which has the functions of setting the experimental time and recording the number of alarms.

9. Power function signal generator (with frequency meter):

(1) Frequency range: 0.2Hz~2MHz, divided into seven levels

(2) Output waveform: sine wave, triangle wave, square wave, ramp wave, pulse wave, 50Hz sine wave (3) Duty cycle adjustment: 20% ~ 80%

(4) Scan rate: 10ms~5s.

(6) Output protection: short circuit protection, input voltage resistance ±35V (1 minute)

(5) Output voltage amplitude: 20VP-P (load 1MΩ), 10VP-P (load 50Ω), with output attenuation

(7) Frequency meter: six-digit LED display, external frequency measurement range: 0~50MHz, external frequency measurement sensitivity: 100mV

(8) Output amplitude indication: three-digit LED digital tube display

(9) With ≥10M power output.

(10) Virtual multimeter parameters: AC voltage range points: 10, 50, 250, 1000; DC voltage range points: 0.25, 1, 2.5, 10, 50, 250, 1000; Ohm range points: x1, x10 ,,100,,1000,,1K,x10K,x100K; Ammeter range: 50μa, 0.5, 5, 50, 500; BATT: 1.2-3.6V, RL=12Ω; BUZZ: R×3; Infrared emission detection function: Vertical angle ±15°, distance 1-30cm; triode measuring hole.

Features: All ports have short-circuit protection and anti-input voltage protection, dual display function (LED) for frequency and output amplitude, power output for convenient experimental teaching, built-in linear/logarithmic frequency sweep function and external frequency modulation function.

10. DC digital voltmeter: made by microprocessor; 0.5 level accuracy; measurement range: 0-300V.

11. DC digital milliammeter: made by microprocessor; 0.5 level accuracy; measuring range: 0-500mA.

12. DC digital ammeter: made by microprocessor; 0.5 level accuracy; measurement range: 0-5A.

13. AC digital voltmeter: produced by the latest professional MCU; accuracy level 0.5, measurement range: 0-450V.

14. AC digital ammeter: produced by the latest professional MCU; accuracy level 0.5, measurement range: 0-5A.

16. Tr*ning connection cables: According to the characteristics of different tr*ning projects, two different specifications of tr*ning connection cables are equipped. Both strong and weak currents adopt a high-reliability sheath structure. Use a gun to plug the cables (there is no possibility of electric shock). The inside is made of oxygen-free copper to form h*r-thin multi-strand wires to achieve the purpose of ultra-softness. It is wrapped with a nitrile polyhexylene chloride insulation layer, which has the advantages of softness, high voltage resistance, high strength, anti-hardening, and good toughness. , the plug is made of solid copper parts coated with beryllium light copper shrapnel, making the contact safe and reliable; both wires can only match the sockets with corresponding inner holes and cannot be mixed, which greatly improves the safety and rationality of the tr*ning.

17. Experiment hanging box:

The schematic diagram and symbols are printed on the front panel of the experimental hanging box, and the corresponding components are welded on the reverse side. The parts that need to be measured and observed are equipped with locking connectors, which are easy to use, intuitive and reliable. The experimental circuit is designed in the unit circuit mode, and each The unit circuit is m*nly a basic circuit, and then different components are connected to the circuit parameters or different unit circuit combinations are used to complete different experimental requirements.

(1) Analog electronic experiment hanging box

It is equipped with power supply experimental circuit, operational amplifier experimental circuit, DC signal source, low-voltage AC power supply, resistor and capacitor triode and other experimental components; equipped with single-tube, multi-stage, negative feedback experimental modules, separation and integrated power amplification experimental modules.

(2) Digital electronic experiment hanging box

Equipped with 8-bit logic level switch, 8-bit logic level indicator, four-digit decimal coding display, a common cathode digital tube, two sets of dial switches, single pulse, high-reliability round-pin integrated socket 8P, 14P, 16P , 28P, 40P, etc., as well as resistors, potentiometers, transistors, etc. required for experiments.

4. Experimental components

1. Experimental table: all-steel structure, steel spray-coated, wear-resistant and fireproof panels, equipped with drawers and cabinets for storing tools, accessories, etc.

2. Power control panel: includes AC and DC digital voltage and current power factor meters, two sets of DC stabilized power supplies; constant current source, signal source, AC three-phase power supply, and AC low-voltage power supply.

3. 1 set of experimental wires, experimental instructions, and instruction manual.

5. Experimental projects

Analog circuit experimental project

1. Use of commonly used electronic instruments

2. Simple test of diode

3. Experiment on input and output characteristics of transistor

4. Single-stage amplifier circuit

5. Two-stage amplifier circuit

6. Negative feedback amplifier circuit

7. Emitter follower

8. Differential amplifier circuit

9. Field effect tube amplifier

10. RC sine wave oscillation circuit

11. LC oscillator and frequency selective amplifier

12. Basic parameter test of integrated operational amplifier

13. Integrated operational amplifier proportional summing circuit

14. Integrated operational amplifier integral and differential circuits

15. Voltage comparator circuit with integrated operational amplifier

16. Waveform generator

17. Active filter

18. Integrated power amplifier

19. Complementary symmetric power amplifier

20. Integrated voltage regulator

21. Series voltage stabilizing circuit

22. Thyristor controlled rectifier circuit

Digital circuit experimental project

1. Transistor switching characteristics, limiter and clamp

2. Logic function and parameter testing of TTL integrated logic gates

3. Logic function and parameter testing of CMOS integrated logic gates

4. Connection and driving of integrated logic circuits   

5. Design and testing of combinational logic circuits

6. Decoder and its application  

7. Data selector and its application

8. Triggers and their applications  

9. Counters and their applications

10. Shift register and its applications

11. Pulse distributor and its application      

12. Use gate circuit to generate pulse signal - self-excited multivibrator

13. Monostable trigger and Schmitt trigger - pulse delay and waveform shaping circuit

14. 555 time base circuit and its applications

Prepare your own instruments;

Oscilloscope 20M

multimeter, digital

Recommended products: Electrician tr*ning bench