??爺爺窮螺廓??

Electric and electronic drag experiment series
Automobile teaching experiment equipment series
Electrical Maintenance Skills Training and Examination Desk Series
PLC programmable, single-chip computer training device
Hydraulic, pneumatic, elevator experiment series
Detection conversion-sensor technology experimental bench
Mechanical display case, multimedia display case
CNC turning and milling machines (teaching, production)
Mechatronics, machine tool electrical training assessment
Accounting simulation, banking laboratory
Engineering drawing laboratory equipment
Appliances, air conditioners, refrigerator training equipment
Digital and analog electrical skills
Physics, Chemistry and Biolab Equipment
Teaching wall chart, teaching model
Other comprehensive teaching equipment series
Teaching instrument
Product Catalog


JG-120 electrical, electronic, high-frequency circuit laboratory equipment

Product Features This experimental bench is suitable for high-frequency circuit experiments. It integrates the lectures of various schools and the opinions of experimental teachers, and increases the system's development capability and flexibility. The system contains matching power supply, signal source, circuit experimental area, and circuit development area. The basic circuit is made into a unit box type, which is independent of each other and improves the anti-interference performance. In order to meet the needs of basic teaching, electrical and electronic experiments are added. This brand-new experimental equipment realizes the combination of strong professional foundation (electrical engineering, electronics) and professional courses (high-frequency circuit) experiments and development, achieving a multi-purpose machine with significant economic benefits. ( Teaching Equipment | Teaching Instruments )
The main function
1. Function generator: Generate sine wave, triangle wave, rectangular wave, frequency range 5Hz -550kHz.
2. Dual constant current regulated power supply: 0-30V continuously adjustable, built-in relay automatic shift, preset current limit protection, overload and short circuit protection, maximum current 1.5A.
3. Single pulse source: each pair of dials outputs positive and negative pulses.
4. High-frequency circuit part: 5-way overcurrent protection, automatic recovery work, power experimental development zone, and experimental module board.
5. Electrical and electronic parts: The method of combining the transparent component box and the nine-hole experimental board commonly used in laboratories of developed countries in the West adopts flexible experimental methods and good experimental results.
Complete composition and equipment (Twenty-four seats as an example)
1. Experimental tables: 12 student experimental tables, one table and two seats, size: 160 〜 70 〜 78cm. A universal nine-hole circuit board (size: 35 〜 90cm) is set in the center of the experiment table, and the component box is randomly inserted into the experiment circuit according to the experiment circuit. The component box is transparent and intuitive. The internal components are clear at a glance. The box cover is printed with a component symbol that never fades. The lines are clear and beautiful. Each experimental table is equipped with a rubber sheet to protect the universal base plate and the desktop (such as placing a motor, welding, etc. on the table). The lower part of the experimental table is a component storage cabinet for experimental components.
2. Teaching console: Control the power of 12 student stations respectively. The universal circuit board demonstration screen stands on the experimental table and measures 160 〜 70cm. Used for explanation and demonstration.
3. Experimental benches: There are 13 sets in total, one for each student experimental table and teaching console.
4. 13 sets of high-frequency circuit experiment systems: The system contains matching power sources, signal sources, circuit experiment areas, and circuit development areas. The main body adopts a unique two-panel process. The front side is die-cast, printed with schematic diagrams and symbols, and the reverse side is printed with wires and welded corresponding components. The basic experimental circuit is made into a unit box type, which is independent of each other to improve interference resistance. The box body is transparent and intuitive. In order to facilitate storage and movement, the system is made into a box type and easy to use.
5. Equipment: 13 180W motors, 26 time relays, 26 thermal relays, 65 AC contactors, 156 AC and DC meters, 13 multimeters, 13 sets of wire strippers, needle-nose pliers, screwdrivers, etc. 13 sets of resistance boxes, potentiometers, inductors, transformers, diodes, triodes, field effect transistors, integrated circuits, integrated sockets, thyristors, logic level switches and logic level indicators, sensors and other component boxes (components) Already installed in the component box).
6. User-supplied equipment: oscilloscope (above 20MHZ, unlimited model), power meter, sliding line rheostat, high-frequency millivolt meter (above 20MHZ), frequency sweeper (above 50MHZ), high-frequency function generator (above 15MHZ) ), Frequency meter (above 100MHZ).

电工、电子、高频电路实验室设备
Beijing Jinggong Science & Technology Equipment Co., Ltd., see details Related products connect electrical and electronic laboratory equipment
Inquiries 010-87966065 ......... 010-87917759

Third, the experimental project:

Experimental content

Electrical experiment part
1. Use of electrical measuring instruments
2. Identification and detection of common components
3.Volt-ampere characteristics of linear and non-linear components
4.External characteristics of power supply
5.Measurement of potential value and voltage value
6.Expansion range of ammeter and voltmeter
7.Verification of Kirchhoff's law
8.Lenz's Law
9.Verification of Superposition Principle and Reciprocity Theorem
10. Verification of Thevenin's Theorem and Norton's Theorem
11. Equivalent transformation of voltage source and current source
12. Research on the characteristics of controlled sources
13.First-order circuit experiment
14.Transition process of second-order circuit
15.Investigate the characteristics of LC components in DC and AC circuits
16.Conditions for the load to obtain maximum power
17.Measurement of AC circuit parameters
18. Characteristics of RLC components in sinusoidal AC circuits
19.RL and RC series circuit experiments
20. RLC series resonance circuit
21.The connection and power factor of the fluorescent lamp circuit are improved.
22.Star and delta connection of three-phase load
23.Three-phase circuit and power measurement
24. Research on RC frequency selective network
25. Two-port network research
26 、 Single-phase transformer experiment
27. Mutual inductance circuit experiment
28. Use and starting of three-phase asynchronous motor
29. Basic circuit of three-phase motor relay contact control
30. Y- △ starting control experiment of three-phase motor
31. Sequence control experiment of three-phase motor
32. Three-phase motor energy consumption braking control experiment The components of the above 32 experiments can also be used to complete the following circuit experiment
33. The simplest circuit
34. Selection of potential and reference point in the circuit
35.Resistance in series
36.Resistance in parallel
37.Resistor voltage divider circuit
38.Resistance of resistance
39, Ohm's law of the whole circuit
40. Application and balance conditions of electric bridge
41.Node voltage method
42, loop voltage method
43. Branch current method
44, RCL parallel circuit
45, series circuit
46. Transformer structure and working principle
47. Kirchhoff's first law
48. Kirchhoff's second law
49, fluorescent lamp circuit principle
50.Extend the range of the voltmeter
51.Extend the ammeter range
52. Excessive process of RC circuit
53, RL transition process
54 、 Capacitor series circuit
55, capacitor parallel circuit
56.Charging and discharging of capacitors
57, the role of capacitors in AC and DC
58.Motion of the bar magnet in the coil
59. Capacitive hybrid
60.Pure resistance, inductance, capacitor circuit
61 、 Sequence of magnetic coupling coil
62. Inverse string of magnetic coupling coil
63.The working principle of ohmmeter
64 、 Double ground switch two ground control
65. Observe the hysteresis loop with an oscilloscope
66. Ohm's Law of Magnetic Circuits
67. Mutual inductance of two coils and the same name end
68. Mutual inductance coupling
69.Methods to improve power factor
70 、 Single-phase circuit power measurement
71 、 Recorder power circuit
72.Filter circuit
73. Relationship between resistance and temperature: The resistance value of the filament under different voltages is measured by voltammetry.
74. Three-phase asynchronous motor brake knife control forward rotation experiment
75.Control circuit with overload protection
76. Forward and reverse control circuit of button control
77. Electronic experimental part of contactor control star-delta step-down start control circuit
1. Characteristics and detection of crystal diodes
2 , Transistor input and output characteristics
3 , Low frequency small signal voltage amplifier
4. Directly coupled two-stage amplifier
5. , RC coupled two-stage amplifier
6 , The effect of negative feedback on amplifier performance
7 , Transformer coupled push-pull power amplifier
8. Complementary symmetrical push-pull power amplifier (OTL)
9 , Single-phase half-wave rectification
10 , Single-phase full-wave rectification
11 , Single-phase bridge rectifier
12 , Single-phase bridge rectifier filter
13 , Single-junction transistor characteristics
14 , Single-junction transistor trigger circuit
15 , Thyristor simple test and controllable rectifier circuit
17 , series voltage regulator
18 , Research on Differential Amplifier Circuit
19 , Test of integrated operational amplifier parameters
20 , Integrated op amp subtraction circuit
21 , Integrated op amp addition circuit
22 , Integrated operational amplifier integration circuit
23 , Integrated operational amplifier differential circuit
24 , Integrated op amp sine wave oscillator
25 , Capacitor three-point oscillator
26 , Inductive three-point oscillator
27 , Integrated voltage regulator circuit
28 , Unsteady state circuit (multivibrator)
29. Schmitt Trigger
30 , Integrated AND gate logic function test
31 , Integrated NOT gate logic function test
32 , Integrated OR gate logic function test
33 , Integration and Non-Logical Function Test
34 , CMOS gate test
35. Basic RS Trigger
36 , JK trigger
37 , D trigger
Application of 38 , 555 Time Base Circuit (Square Wave Generator)
39 , 21 decimal counter
40 , 21 decimal 8421 decoder
41 , Adder
42 , Subtractor
43 , Integrated NAND gates to form monostable flip-flops
44 , Combination logic circuit can use the above 44 experimental components to complete the following experiments
45 , PN junction unidirectional conductivity
46 , Three power management ICBO measurement circuit
47 , Triode ICEO measurement circuit
48 , Triode current amplification
49 , VA characteristics of triode
50 , Single stage small signal voltage amplification with load
51 , Voltage negative feedback bias circuit
52 , Divided Current Negative Feedback Bias Circuit
53 , Stabilize the operating point with a thermistor
54 , Stable operating point with diode
55 , Analysis of the effect of Ce on low frequency characteristics
56 , Common base amplification experiment circuit
57 , Common Collector Amplification Experiment Circuit
58 , Common source basic amplifier circuit
59 , field-effect tube self-biased amplifier circuit
60 , field-effect tube voltage-dividing self-biasing circuit
61 , Field-effect transistor common drain circuit
62 , Field effect transistor common grid circuit
63 , Single tube RC amplifier circuit
64 , Basic DC Amplifier Circuit
65 , Increase the post-emitter potential with a resistor
66 , Using a voltage regulator to increase the potential of the back stage emitter
67 , Transformer coupling amplifier circuit
68 , Class A power amplifier circuit
70 , Series current negative feedback
71 , Series voltage negative feedback circuit
72 , Negative feedback circuit in parallel voltage
73 , Parallel current negative feedback circuit
74 , Negative feedback in two-stage amplifier circuit
75 , emitter output circuit
76 , Boot emitter output circuit
77 , Attenuation of high frequency voltage with capacitor
78 , Negative feedback to eliminate self-excited oscillation
79 , Battery monitoring circuit
80 , Amplifier circuit composed of field effect transistor and triode


81 , PNP-NPN direct coupling amplifier circuit
82 , Common base common radiation amplifier circuit
83 , Transistor switching
84 , Liquid level photoelectric control
85 , Simple temperature control circuit
86 , Analog light control simple street lamp automatic switch circuit
87 , RC phase shift oscillator
88 , Double T frequency selection network
89 , Oscillator composed of double T frequency selection network
90 , Transformer feedback oscillation circuit
91 , Field-effect tube transformer feedback type oscillation circuit
92 , Anti-theft alarm circuit
93 , Series crystal oscillator circuit
94 , Complementary Audio Oscillator
95 , Alarm sounder
96 , Music doorbell circuit
97 , Electronic alarm circuit
98 , Basic form of differential amplifier circuit
99 , Electronic doorbell circuit
100 , quasi-complementary symmetrical circuit
101 , Three tube OTL complementary symmetrical circuit
102 , Long tail differential amplifier circuit
103 , Differential input single-ended output
104 , Single-ended input and double-ended output
105 , Single-ended input single-ended output
106 , Double power supply type long tail differential amplifier circuit
107 , Differential amplifier experimental circuit
108 , Measures of differential amplifier circuit with constant current source
109 , Temperature analysis of single-ended output differential amplifier circuit
110 , Flasher circuit
111 , Basic connection method of operational amplifier
112 , Current Differential Operational Amplifier for AC Proportional Amplification
113 , Vos simple measurement method
114 , Aos simple measurement method
115 , Aod's Simple Measurement Method
116 , Simple test of common mode rejection ratio Cmrr
117 , Simple test of the maximum common mode input UIcm
118 , Yopp's simple test
119 , SR measurement method
120 , Basic in-phase amplification method
121. LC oscillator constituted by op amp
122 , Thermal cup temperature control circuit
123 , Leading to zero input zero adjustment
124 , Induced by the zero input finger
125 , In order to prevent the electric value from being too large
126 , Using the base current of the triode to achieve temperature compensation for Ios
127 , Using T-type network to increase equivalent feedback resistance
128 , Measures for Enlarging Output Current of Complementary Tubes Working in Class A and B
129 , Measures for Capacitive Load Correction
130 , Inverting input protection measures
131 , In-phase input protection measures
132 , Using Zener tube to protect the device
133 , Protection of wrong polarity of power supply
134 , Power supply instantaneous over-voltage protection
135 , Diode detection circuit
136 , Circuit principle of measuring temperature by using temperature coefficient of PN junction
137 , Double Diode Limiter
138 , Inverter Op Amp Basic Circuit
139 , Variable zoom
140 , Basic Circuit of Non-inverting Operational Amplifier
141 , Voltage / current conversion circuit
142 , Current / voltage conversion circuit
143 , Voltage follower
144 , Basic circuit of differential amplifier
145 , Differential input of operational amplifier
146 , Inverted input sum operation
147 , In-phase input sum operation
148 , Double-end input sum operation
149 , Basic integration circuit
150 , EG integral filtering circuit for filtering leakage resistance
151 , Measures to improve integration time constant
152 , Fast integration circuit
153 , Simulation of first order differential equation circuit
154 , Simulation of second order differential equation circuit
155 , Basic Differential Circuit
156 , Practical Differential Circuit
157 , Using indirect method to get approximate differential
158 , Basic logarithmic operation circuit
159 , Using the logarithmic characteristics of the triode
160 , Basic Circuit of Anti-Amplification
161 , Vo is proportional to VxVy circuit
162 , Simple zero crossing circuit
163 , Comparison circuit with hysteresis
164 , Double limit comparison circuit
165 , Using the diode as the upper limit detection amplitude selection circuit
166 , Double-limit three-state comparison circuit
167 , Lower limit detection selection circuit
168 , Basic sampling protection circuit
169 , RC low-pass filter circuit for passive network termination
170 , Filter circuit connected to the non-inverting input of the module
171 , Filter circuit connected to the inverting input terminal of the module
172 , Simple second-order RC filter circuit
173 , Typical RC Active Filter Circuit
174 , Two-stage active filter circuit
175 , Multi-feedback secondary active filter circuit
176 , Typical second-order high-pass active filter circuit
177 , Basic bandpass filter circuit
178 , Typical band-pass filter circuit
179 , Band Stop Filtering with Double T Network
180 , Output Limiting Inverter
181 , Practical difference operational amplifier
182 , Rectangular wave oscillation circuit
183 , Resistance-capacitor phase-shift trigger circuit
184 , Electric mattress temperature control device
185 , Width adjustable rectangular wave generator
186 , Simple Sawtooth Wave Generator
187 , Amplitude-frequency adjustable sawtooth wave generator
188 , Single-phase bridge rectifier commonly used drawing circuit
189 , Maximum reverse peak voltage of full wave rectifier circuit
190 , Capacitor filter circuit
191 , Capacitor filter with resistive load
192 , Full wave rectifier capacitor filter circuit
193 , RC filter circuit
194 , Multi-segment RC filter circuit
195. Basic LC filter circuit
196 , T filter circuit
197 , Double voltage rectifier circuit
198 , triple voltage rectifier circuit
199 , Basic voltage regulator circuit
200 , Basic pass tube regulator circuit
201 , Regulator circuit with amplification link
202 , Brake tube current stabilization circuit
203 , Electronic filter
204 , Series regulator circuit
205 , Parallel voltage regulator circuit
206 , Electronic hypnosis
207 , Three-terminal integrated voltage regulator circuit
208 , Integrated voltage regulator circuit with adjustable positive power output
209 , Single-phase full-wave controllable rectification
210 , Silicon voltage regulator circuit
211 , Single-phase half-wave controllable rectification
212 , Single-phase bridge half-controlled rectifier
213 , Silicon Rectifier Principle
214 , Effect of Inductive Load on Thyristor
215 , Thyristor Triggered Continuity Test
216 , Back-EMF load thyristor circuit
217 , Simple electronic voltage regulating circuit
218 , Test single junction tube partial pressure ratio n
219 , Single junction tube oscillation circuit
220 , Single junction tube trigger application circuit
221 , Diode "AND" Gate Circuit
222 , Triode "or" gate circuit
223 , Visualization with Logic
224 , Or logical visualization
225 , Non-Logical Visualization
226 , Triode "Not" Gate
227 , Triode NAND Gate
228 , Triode "NOR" gate
229 , Triple flip-flop circuit
330 , Triode Monostable Circuit
231 , Triode Multi-Resonant Oscillation Circuit
232 , Set trigger circuit
233 , Emitter coupling bistable
234 , Symmetric Multivibrator
235 , Ring Multivibrator
236 , Differential monostable circuit
237 , Integrated Schmidt circuit
238 , Rectangular wave generator
239 , Single pulse circuit
240 , Continuous Pulse Generator

High-frequency circuit part:
1.Tuning amplifier circuit
2.Passband expansion circuit
3.LC oscillation circuit
4.Quartz crystal oscillator circuit
5.Resonant power amplifier circuit
6. Class C high frequency power amplifier circuit
7. Amplitude modulation circuit
8. Amplitude demodulation circuit
9.Frequency modulation and demodulation circuit composed of discrete components
10.Frequency modulator composed of integrated circuit
11.Voltage-controlled oscillator and phase-locked loop circuit composed of integrated circuits
12.Waveform conversion circuit

model Electrical and electronic laboratory equipment related product connection:
Device name (click on the product for details)
model Device name (click on the product for details)
JG-100 type General Electrician Lab Equipment JG-100C type Electrician skills training and assessment desk
JG-101 General electronic laboratory equipment JG-101C Electronic Skills Training and Examination Desk
JG-102 General electrical and electronics laboratory equipment JG-102C Electrical and electronic skills training and assessment station
JG-103 General electrical, electronic, electric drag laboratory equipment JG-103C Electrician, electronics, electric power drag skills training assessment platform
JG-104 Complete set of general electrician, electronics, electric power laboratory equipment (with DC motor experiment) JG-104C Intelligent general electrician, electronics, electric drive (with DC motor) experiment and skill training assessment laboratory complete set of equipment
JG-105 General electrician, electronics, electric power laboratory equipment (with DC motor three-phase 0-450V adjustable transformer) (five in one) JG-121 General electrical, electronics, and automatic control principle laboratory
JG-106 General Electric Drag Laboratory Equipment (with DC Motor Experiment) JG-120 Electrical, electronics, high-frequency circuit laboratory equipment
JG-104A type series Vertical general electrical, electronic, electric drag laboratory equipment (with DC motor) (series) JGS type Motor and transformer maintenance and testing training equipment
JGS type General electrician training assessment device JG-118 Intelligent Series Intelligent general electrician, electronics, electric drive (with DC motor) three-phase voltage regulation laboratory complete set
JG-123 Junior electrician training assessment device JG-126 Primary maintenance electrician and skill assessment training device
JG-124 Intermediate electrician training assessment device (intermediate, timing misoperation type)
JG-127 Intermediate maintenance electrician and skill assessment training device; electrician training skill assessment device
JG-125 Advanced electrician and electric tractor practical training and assessment device (PLC control JG-128 Advanced maintenance electrician and skills training and assessment device (PLC, frequency conversion speed regulation, electrical control)
JG-119 series Universal intelligent electrician, electronics, electric tug (with DC motor) experiment and skills training and assessment table JG104B
JG-132 type
Mesh-type electrician, electronic skills and process training assessment device
Maintenance electrician technician, senior technician skills training assessment device

Electrical, electronics, high-frequency circuit laboratory equipment

??爺爺窮螺廓?? | About JingGong | Products | Contact Us Honesty, Excellent Quality, Technological Innovation, Welcome to patronize
: Copyright :: Beijing , Beijing Engineering Science and Education Equipment Co., Ltd. Production Base: No. 9 Nanxiao Street, Jiugong Development Zone, Beijing Hotline: 010-87966065 .. 87917759 Fax: 010-87917759
Teaching Lathe E-mail: bjhjwy@bjhjwy.com QQ: 787608606
鈍赤科 里蟻怎白 散赤憧眉嫖 散赤憧眉嫖