A multifunctional RLC experimental instrument

Abstract

The invention discloses a multifunctional RLC experiment instrument, including a front panel, a right panel, a rear panel, a left panel, and an upper panel. The multifunctional RLC experiment instrument of the invention can output a DC regulated current current of 0-500mA, an AC regulated current current of 0-500mA, a DC regulated voltage of 0-30V, and an AC regulated voltage of 0-30V as an AC / DC regulated voltage and current power supply. The DC current, DC voltage, AC current, and AC voltage can all be independently and smoothly adjusted and used, and are flexible and simple to use, with regulated voltage and current, and stable performance. The DC ammeter, DC voltmeter, AC ammeter, and AC voltmeter can be used as the output display of the regulated voltage and current source, and each terminal is an output port at this time, or can be used independently for other experiments as a DC ammeter, a DC voltmeter, an AC ammeter, and an AC voltmeter, and each terminal is an input port at this time.

Description

Technical Field

[0001] The invention belongs to the field of electrical technology, and in particular relates to a multifunctional RLC experiment instrument. Background Art

[0002] The multifunctional RLC experiment instrument is an instrument that can conduct resistance (R), inductance (L) and capacitance (C) characteristic experiments. It can conduct R, L, C characteristic research experiments separately, can demonstrate self-inductance and mutual inductance phenomena, can also conduct RC, RL, RLC series circuit transient process experiments and store the graphics of each transient process through a digital oscilloscope for later data processing. It can also form a low-pressure mercury lamp power supply through capacitor C and resistor R, and use it as a low-pressure mercury lamp after matching the mercury lamp shade bracket and bulb. At the same time, this instrument can also be used independently as an AC / DC voltage-stabilized and current-stabilized power supply.

[0003] The voltage and current are continuously adjustable, and the high-precision DC linear power supply automatically switches between voltage stabilization and current stabilization. The DC output voltage can be continuously adjusted from 0 volts, which is stable and reliable. The output current can be selected arbitrarily, and it has current limiting protection and long-term short-circuit protection. When the power supply works in the voltage stabilization state, the current stabilization part is the protection circuit; when working in the current stabilization state, the voltage stabilization part also plays the role of voltage limiting. The two are mutually protected to ensure safe and reliable power use. This series of AC and DC regulated power supplies are divided into two series: single-channel output and dual-channel output. The dual-channel output power supply can output different voltage values ​​in two channels and can be connected in series or in parallel to form positive and negative power supplies or expand the output current capacity of the power supply. When connected in parallel, it is controlled by the main power supply. The power supply also has small size, good performance, and beautiful appearance. It can be widely used in industrial production, university laboratories, research institutes, postal and telecommunications, and automation equipment. The AC and DC regulated power supplies in the prior art have the defects of not being able to be independently and stably adjusted and used, and unstable performance. Summary of the invention

[0004] In order to overcome the defects existing in the prior art, the present invention provides a multifunctional RLC experiment instrument. It is an instrument that can perform resistance (R), inductance (L) and capacitance (C) characteristic experiments, can perform R, L, C characteristic research experiments separately, can perform self-inductance and mutual inductance phenomenon demonstration, can also perform RC, RL, RLC series circuit transient process experiments and store the graphics of each transient process through a digital oscilloscope for later data processing, and can also be used as a low-pressure mercury lamp after forming a low-pressure mercury lamp power supply with a mercury lamp shade bracket and a bulb through a capacitor C and a resistor R. AC and DC voltage and current stabilizing power supply, the power supply can output DC stabilizing current current 0-500mA, AC stabilizing current current 0-500mA, DC stabilizing voltage 0-30V, AC stabilizing voltage 0-30V. DC current, DC voltage, AC current, and AC voltage can all be independently and stably adjusted and used, and are flexible and easy to use, with stable voltage and current, and stable performance.

[0005] The technical solution is as follows:

[0006] A multifunctional RLC experiment instrument comprises a front panel 1, a right side panel 41, a rear side panel 70, a left side panel 87, and an upper panel 109.

[0007] The front panel 1 is equipped with a 220V power interface 2, a 220V power switch 3, a DC ammeter 4, a DC ammeter positive terminal 5, a DC ammeter negative terminal 6, a DC current adjustment knob 7, a DC ammeter use conversion switch 8, an AC ammeter 9, two AC ammeter terminals, an AC current adjustment knob 12, an AC ammeter use conversion switch 13, a DC voltmeter 14, a DC voltmeter positive terminal 15, a DC voltmeter negative terminal 16, a DC voltage adjustment knob 17, a DC voltmeter use conversion switch 18, an AC voltmeter 19, two AC voltmeter terminals, an AC voltage adjustment knob 22, and an AC voltmeter use conversion switch 23. An AC transformer and an AC to DC device are installed inside the base.

[0008] Furthermore, the two AC ammeter terminals are a first AC ammeter terminal 10 and a second AC ammeter terminal 11 , and the two AC voltmeter terminals are a first AC voltmeter terminal 20 and a second AC voltmeter terminal 21 .

[0009] Furthermore, the AC / DC voltage and current stabilizing power supply has a circuit part inside, including a DC current stabilizing circuit module 31, an AC current stabilizing circuit module 32, a DC voltage stabilizing circuit module 33, an AC voltage stabilizing circuit module 34, a first wire 26, a second wire 27, a third wire 28, a fourth wire 29, a fifth wire 30, a sixth wire 36, a seventh wire 37, an eighth wire 38, a ninth wire 39, and a tenth wire 40.

[0010] Further, the 220V power interface 2 is connected to the 220V power supply through the eleventh wire 24, and is connected to the 220V power switch through the twelfth wire 25. The 220V power switch 3 is connected to the transformer 35 through the first wire 26. The transformer has five outputs. The first output provides a 5V DC output voltage to the DC ammeter 4, the AC ammeter 9, the DC voltmeter 14, and the AC voltmeter 19 through the sixth wire 36 to provide a working voltage. The second output is connected to the DC current stabilization circuit module 31 through the seventh wire 37, the third output is connected to the DC voltage stabilization circuit module 33 through the eighth wire 38, the fourth output is connected to the AC current stabilization circuit module 32 through the ninth wire 39, and the fifth output is connected to the AC voltage stabilization circuit module 34 through the tenth wire 40;

[0011] The DC ammeter is connected to the DC current stabilizing circuit module 31 through the second wire 27 using the conversion switch 8;

[0012] The AC ammeter uses a conversion switch 13 to connect the AC current stabilization circuit module 32 through a fourth conductor 29;

[0013] The DC voltage meter is connected to the DC voltage stabilizing circuit module 33 via the third wire 28 using the conversion switch 18;

[0014] The AC voltmeter is connected to the AC voltage stabilizing circuit module 34 via the fifth conductor 30 using the conversion switch 23 .

[0015] The right side panel 41 is provided with a 1MΩ-9MΩ step adjustment knob 42, a 100KΩ-900KΩ step adjustment knob 43, a 10KΩ-90KΩ step adjustment knob 44, a 1KΩ-9KΩ step adjustment knob 45, a 100Ω-900Ω step adjustment knob 46, a 10Ω-90Ω step adjustment knob 47, a 1Ω-9Ω step adjustment knob 48, a step resistor first terminal 49, a step resistor second terminal 50, a sliding resistor 51 with a total resistance of 5KΩ, a sliding resistor contact 52, a sliding resistor first terminal 53, a sliding resistor second terminal 54, a sliding resistor contact terminal 55, a 10W rated power 5W resistor 57, a step resistor 58, a step resistor 59, a step resistor 60, a step resistor 61, a step resistor 62, a step resistor 63, a step resistor 64, a step resistor 65, a step resistor 66, a step resistor 67, a step resistor 68, a step resistor 69, a step resistor 70, a step resistor 71, a step resistor 72, a step resistor 73, a step resistor 74, a step resistor 75, a step resistor 76, a step resistor 77, a step resistor 78, a step resistor 79, a step resistor 80, a step resistor 81, a step resistor 82, a step resistor 83, a step resistor 84, a step resistor 85, a step resistor 86, a step resistor 87, a step resistor 88, a step resistor 89, a step resistor 90, a step resistor 91, a step resistor 92, a step resistor 93, a step resistor 94, a step resistor 95 Ω fixed resistor 56, a 100Ω fixed resistor 57 with a rated power of 5W, a 1KΩ fixed resistor 58 with a rated power of 5W, a 10KΩ fixed resistor 59 with a rated power of 5W, a 100KΩ fixed resistor 60 with a rated power of 5W, a 1MΩ fixed resistor 61 with a rated power of 5W, a 10Ω resistor left terminal 62, a 100Ω resistor left terminal 63, a 10Ω and 1KΩ resistor shared terminal 64, a 100Ω and 10KΩ resistor shared terminal 65, a 1KΩ and 100KΩ resistor shared terminal 66, a 10KΩ and 1MΩ resistor shared terminal 67, a 100KΩ resistor right terminal 68, and a 1MΩ resistor right terminal 69.

[0016] The rear panel 70 is provided with a 10mH-90mH step inductance adjustment knob 71, a 1mH-9mH step inductance adjustment knob 72, a 0.1mH-0.9mH step inductance adjustment knob 73, a 0.01mH-0.09mH step inductance adjustment knob 74, a 10mH-90mH step inductance left terminal 75, a 10mH-90mH and 1mH-9mH step inductance common terminal 76, a 1mH-9mH and 0.1mH- The 0.9mH step inductor shares the terminal 77, a 0.1mH-0.9mH and 0.01mH-0.09mH step inductor shares the terminal 78, a 0.01mH-0.09mH step inductor right terminal 79, a 0.1H inductor left terminal 80, a 0.1H inductor right terminal 81, a 0.1H inductor 82, a 0.05H inductor 83, an iron rod 84, a 0.05H inductor upper terminal 85, and a 0.05H inductor lower terminal 86.

[0017] The left panel 87 is provided with a 100 μF capacitor 88, a 220 μF capacitor 89, a 470 μF capacitor 90, a 1000 μF capacitor 91, a 100 μF capacitor positive terminal 92, a 100 μF capacitor negative terminal 93, a 220 μF capacitor positive terminal 94, a 220 μF capacitor negative terminal 95, a 470 μF capacitor positive terminal 96, and a 470 μF capacitor negative terminal. 97, a 1000μF capacitor positive terminal 98, a 1000μF capacitor negative terminal 99, a 0.1μF capacitor 100, a 10μF capacitor 101, a 4μF first capacitor 102, a 4μF second capacitor 103, a 1MΩ resistor 104, a 0.1μF capacitor left terminal 105, a 0.1μF capacitor right terminal 106, a capacitor connected to the lower wire 107, and a capacitor connected to the upper wire 108.

[0018] The upper panel 109 shown is equipped with an experimental instrument handle 110, a low-pressure mercury lamp base 111, a low-pressure mercury lamp switch 112, a low-pressure mercury lamp power connection line 113, a left speaker terminal 114, a speaker 115, a right speaker terminal 116, a left low-voltage small bulb terminal 117, a low-voltage small bulb 118, and a right low-voltage small bulb terminal 119.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] The multifunctional RLC experiment instrument of the present invention can output a DC stabilized current of 0-500mA, an AC stabilized current of 0-500mA, a DC stabilized voltage of 0-30V, and an AC stabilized voltage of 0-30V as an AC and DC stabilized current power supply. The DC current, DC voltage, AC current, and AC voltage can be independently and stably adjusted and used, and the use is flexible and simple, and the voltage and current are stabilized, and the performance is stable.

[0021] The DC ammeter, DC voltmeter, AC ammeter and AC voltmeter can be used as the output display of the voltage and current stabilizer, in which case each terminal is an output port. They can also be used independently as a DC ammeter, DC voltmeter, AC ammeter and AC voltmeter for other experiments after cutting off the connection with the internal circuit module of the instrument through the conversion switch, in which case each terminal is an input port.

[0022] It can not only conduct R, L, C characteristic research experiments separately, but also demonstrate self-inductance and mutual inductance phenomena, but also conduct RC, RL, RLC series circuit transient process experiments and store the graphics of each transient process through a digital oscilloscope for later data processing. It can also be used as a low-pressure mercury lamp after forming a low-pressure mercury lamp power supply through capacitor C and resistor R, and matching it with a mercury lamp shade bracket and bulb. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a three-dimensional panel of the multifunctional RLC experimental instrument of the present invention;

[0024] Figure 2 The figure is a front panel diagram of the multifunctional RLC experiment instrument of the present invention;

[0025] Figure 3 The internal circuit diagram of the front panel of the multifunctional RLC experiment instrument of the present invention;

[0026] Figure 4 This is a diagram of the right side panel of the multifunctional RLC experimental instrument of the present invention;

[0027] Figure 5 This is a diagram of the rear panel of the multifunctional RLC experimental instrument of the present invention;

[0028] Figure 6 This is a diagram of the left side panel of the multifunctional RLC experimental instrument of the present invention;

[0029] Figure 7 This is a diagram of the instrument upper panel of the multifunctional RLC experimental instrument of the present invention. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0031] Reference Figure 1A multifunctional RLC experiment instrument comprises a front panel 1, a right side panel 41, a rear side panel 70, a left side panel 87, and an upper panel 109. Each panel of the present invention has a relatively independent function, the front panel 1 is mainly for power output function, the right side panel 41 is mainly for resistance R, the rear side panel 70 is mainly for inductance L, the left side panel 87 is mainly for capacitance C, and the upper panel 109 is mainly for speakers and light bulbs.

[0032] Reference Figure 2 A multifunctional RLC experiment instrument front panel includes a front panel 1, on which a 220V power interface 2, a 220V power switch 3, a DC ammeter 4, a DC ammeter positive terminal 5, a DC ammeter negative terminal 6, a DC current adjustment knob 7, a DC ammeter using a conversion switch 8, an AC ammeter 9, two AC ammeter terminals, an AC current adjustment knob 12, an AC ammeter using a conversion switch 13, a DC voltmeter 14, a DC voltmeter positive terminal 15, a DC voltmeter negative terminal 16, a DC voltage adjustment knob 17, a DC voltmeter using a conversion switch 18, an AC voltmeter 19, two AC voltmeter terminals, an AC voltage adjustment knob 22, an AC voltmeter using a conversion switch 23, and an AC transformer and an AC to DC device are installed inside the base. The power output panel part of the front panel of the experiment instrument of the present invention is unfolded when only one multi-output transformer is provided, and the purpose of outputting DC is achieved by converting AC to DC.

[0033] The two AC ammeter terminals are a first AC ammeter terminal 10 and a second AC ammeter terminal 11 , and the two AC voltmeter terminals are a first AC voltmeter terminal 20 and a second AC voltmeter terminal 21 .

[0034] like Figure 3 As shown, the internal circuit part of the AC / DC voltage and current stabilizing power supply on the front panel of the multifunctional RLC experiment instrument includes a DC current stabilizing circuit module 31, an AC current stabilizing circuit module 32, a DC voltage stabilizing circuit module 33, an AC voltage stabilizing circuit module 34, a first wire 26, a second wire 27, a third wire 28, a fourth wire 29, a fifth wire 30, a sixth wire 36, a seventh wire 37, an eighth wire 38, a ninth wire 39, and a tenth wire 40.

[0035] The 220V power interface 2 is connected to a 220V power supply through an eleventh wire 24, and is connected to a 220V power switch through a twelfth wire 25. The 220V power switch 3 is connected to a transformer 35 through a first wire 26. The transformer has five outputs. The first output provides a 5V DC output voltage to a DC ammeter 4, an AC ammeter 9, a DC voltmeter 14, and an AC voltmeter 19 through a sixth wire 36 to provide a working voltage. The second output is connected to a DC current stabilization circuit module 31 through a seventh wire 37, the third output is connected to a DC voltage stabilization circuit module 33 through an eighth wire 38, the fourth output is connected to an AC current stabilization circuit module 32 through a ninth wire 39, and the fifth output is connected to an AC voltage stabilization circuit module 34 through a tenth wire 40.

[0036] The DC ammeter is connected to the DC current stabilizing circuit module 31 through the second wire 27 using the conversion switch 8;

[0037] The AC ammeter uses a conversion switch 13 to connect the AC current stabilization circuit module 32 through a fourth conductor 29;

[0038] The DC voltage meter is connected to the DC voltage stabilizing circuit module 33 via the third wire 28 using the conversion switch 18;

[0039] The AC voltmeter is connected to the AC voltage stabilizing circuit module 34 via the fifth conductor 30 using the conversion switch 23 .

[0040] Reference Figure 4A multifunctional RLC experiment instrument right side panel 41, on which a 1MΩ-9MΩ step adjustment knob 42, a 100KΩ-900KΩ step adjustment knob 43, a 10KΩ-90KΩ step adjustment knob 44, a 1KΩ-9KΩ step adjustment knob 45, a 100Ω-900Ω step adjustment knob 46, a 10Ω-90Ω step adjustment knob 47, a 1Ω-9Ω step adjustment knob 48, a step resistor first terminal 49, a step resistor second terminal 50, a total resistance 5KΩ sliding resistor 51, a sliding resistor contact 52, a sliding resistor first terminal 53, a sliding resistor second terminal 54, a sliding resistor contact terminal 55, a A 10Ω fixed resistor 56 with a rated power of 5W, a 100Ω fixed resistor 57 with a rated power of 5W, a 1KΩ fixed resistor 58 with a rated power of 5W, a 10KΩ fixed resistor 59 with a rated power of 5W, a 100KΩ fixed resistor 60 with a rated power of 5W, a 1MΩ fixed resistor 61 with a rated power of 5W, a 10Ω resistor left terminal 62, a 100Ω resistor left terminal 63, a 10Ω and 1KΩ resistor shared terminal 64, a 100Ω and 10KΩ resistor shared terminal 65, a 1KΩ and 100KΩ resistor shared terminal 66, a 10KΩ and 1MΩ resistor shared terminal 67, a 100KΩ resistor right terminal 68, and a 1MΩ resistor right terminal 69. The resistor R panel part on the right side panel of the experimental instrument of the present invention can provide a stepping resistor of 0-9999999Ω and a rated power of 0.1W; it can provide a sliding line resistor with a maximum resistance of 5KΩ and a rated current of 0.1A; it can provide fixed resistors of 10, 100, 1K, 10K, 100K, and 1MΩ, and the rated power is 5W.

[0041] Reference Figure 5A multifunctional RLC experiment instrument rear panel 70 is provided with a 10mH-90mH step inductance adjustment knob 71, a 1mH-9mH step inductance adjustment knob 72, a 0.1mH-0.9mH step inductance adjustment knob 73, a 0.01mH-0.09mH step inductance adjustment knob 74, a 10mH-90mH step inductance left terminal 75, a 10mH-90mH and 1mH-9mH step inductance common terminal 76, a 1mH-9 mH and 0.1mH-0.9mH step inductor share terminal 77, a 0.1mH-0.9mH and 0.01mH-0.09mH step inductor share terminal 78, a 0.01mH-0.09mH step inductor right terminal 79, a 0.1H inductor left terminal 80, a 0.1H inductor right terminal 81, a 0.1H inductor 82, a 0.05H inductor 83, an iron rod 84, a 0.05H inductor upper terminal 85, and a 0.05H inductor lower terminal 86. The inductor L panel part of the rear side panel of the experimental instrument of the present invention can provide a step inductor of 0-99.99mH and a rated current of 0.5A; it can provide two fixed inductance value inductors of 0.05H and 0.1H, with a rated current of 0.1A, and the two inductors can form a mutual inductance device, and the iron rod can enhance the inductance value.

[0042] Reference Figure 6A multifunctional RLC experiment instrument right side panel 87, the left side panel 87 is equipped with a 100μF capacitor 88, a 220μF capacitor 89, a 470μF capacitor 90, a 1000μF capacitor 91, a 100μF capacitor positive terminal 92, a 100μF capacitor negative terminal 93, a 220μF capacitor positive terminal 94, a 220μF capacitor negative terminal 95, a 470μF capacitor positive terminal 96, a 470 A μF capacitor negative terminal 97, a 1000μF capacitor positive terminal 98, a 1000μF capacitor negative terminal 99, a 0.1μF capacitor 100, a 10μF capacitor 101, a 4μF first capacitor 102, a 4μF second capacitor 103, a 1MΩ resistor 104, a 0.1μF capacitor left terminal 105, a 0.1μF capacitor right terminal 106, a capacitor connected to the lower wire 107, and a capacitor connected to the upper wire 108. The capacitor C panel part of the left panel of the experimental instrument of the present invention can provide fixed capacitors of 100, 220, 470, and 1000μF with a rated withstand voltage of 16V; it can provide a fixed capacitor of 0.1μF with a rated withstand voltage of 50V; it can provide one fixed capacitor of 10μF and two fixed capacitors of 4μF, all with a rated withstand voltage of 450V. For safe use, the three capacitors have been connected to a 1MΩ resistor on the panel with wires, and no additional wiring is required when in use. It is mainly used as a component of a low-pressure mercury lamp power supply.

[0043] Reference Figure 7 A multifunctional RLC experiment instrument upper panel 109 is provided with an experiment instrument handle 110, a low-pressure mercury lamp base 111, a low-pressure mercury lamp switch 112, a low-pressure mercury lamp power connection line 113, a speaker left terminal 114, a speaker 115, a speaker right terminal 116, a low-pressure small bulb left terminal 117, a low-pressure small bulb 118, and a low-pressure small bulb right terminal 119. The upper panel of the experiment instrument of the present invention can provide a low-pressure mercury lamp, a speaker for audio signal demonstration, and a low-pressure small bulb for current magnitude demonstration.

[0044] The above is only a preferred specific implementation manner of the present invention, and the protection scope of the present invention is not limited thereto. Any simple change or equivalent replacement of the technical solution that can be obviously obtained by any technician familiar with the technical field within the technical scope disclosed in the present invention falls within the protection scope of the present invention.

Claims

1. A multifunctional RLC experimental instrument, characterized in that: It comprises a front panel (1), a right side panel (41), a rear side panel (70), a left side panel (87), and an upper panel (109); A front panel (1) is provided with a 220V power interface (2), a 220V power switch (3), a DC ammeter (4), a DC ammeter positive terminal (5), a DC ammeter negative terminal (6), a DC current adjustment knob (7), a DC ammeter use conversion switch (8), an AC ammeter (9), two AC ammeter terminals, an AC current adjustment knob (12), an AC ammeter use conversion switch (13), a DC voltmeter (14), a DC voltmeter positive terminal (15), a DC voltmeter negative terminal (16), a DC voltage adjustment knob (17), a DC voltmeter use conversion switch (18), an AC voltmeter (19), two AC voltmeter terminals, an AC voltage adjustment knob (22), an AC voltmeter use conversion switch (23), and an AC transformer and an AC to DC device are provided inside the base; The two AC ammeter binding posts are a first AC ammeter binding post (10) and a second AC ammeter binding post (11), and the two AC voltmeter binding posts are a first AC voltmeter binding post (20) and a second AC voltmeter binding post (21); The front panel AC / DC voltage and current stabilizing power supply of the multifunctional RLC experiment instrument has a circuit part inside, which includes a DC current stabilizing circuit module (31), an AC current stabilizing circuit module (32), a DC voltage stabilizing circuit module (33), an AC voltage stabilizing circuit module (34), a first wire (26), a second wire (27), a third wire (28), a fourth wire (29), a fifth wire (30), a sixth wire (36), a seventh wire (37), an eighth wire (38), a ninth wire (39), and a tenth wire (40); The AC / DC voltage and current stabilizing power supply, wherein the 220V power interface (2) is connected to the 220V power supply through the eleventh wire (24), connected to the 220V power switch through the twelfth wire (25), the 220V power switch (3) is connected to the transformer (35) through the first wire (26), the transformer has five outputs, the first one provides a 5V DC output voltage through the sixth wire (36) to provide a working voltage to the DC ammeter (4), the AC ammeter (9), the DC voltmeter (14), and the AC voltmeter (19), the second one is connected to the DC current stabilizing circuit module (31) through the seventh wire (37), the third one is connected to the DC voltage stabilizing circuit module (33) through the eighth wire (38), the fourth one is connected to the AC current stabilizing circuit module (32) through the ninth wire (39), and the fifth one is connected to the AC voltage stabilizing circuit module (34) through the tenth wire (40); The DC ammeter is connected to the DC current stabilizing circuit module (31) via a second conductor (27) using a conversion switch (8); The AC ammeter is connected to the AC current stabilizing circuit module (32) via a fourth conductor (29) using a conversion switch (13); The DC voltage meter is connected to the DC voltage stabilizing circuit module (33) via a third wire (28) using a conversion switch (18); The AC voltage meter is connected to the AC voltage stabilizing circuit module (34) via a fifth conductor (30) using a conversion switch (23); The right side panel (41) is provided with a 1MΩ-9MΩ step adjustment knob (42), a 100KΩ-900KΩ step adjustment knob (43), a 10KΩ-90KΩ step adjustment knob (44), a 1KΩ-9KΩ step adjustment knob (45), a 100Ω-900Ω step adjustment knob (46), a 10Ω-90Ω step adjustment knob (47), a 1Ω-9Ω step adjustment knob (48), a first terminal of a stepping resistor (49), a second terminal of a stepping resistor (50), a sliding resistor (51) with a total resistance of 5KΩ, a sliding resistor contact (52), a first terminal of a sliding resistor (53), a second terminal of a sliding resistor (54), a contact terminal of a sliding resistor (55), and a 100Ω-900Ω step adjustment knob (46). 0Ω fixed resistor (56), a 100Ω fixed resistor with a rated power of 5W (57), a 1KΩ fixed resistor with a rated power of 5W (58), a 10KΩ fixed resistor with a rated power of 5W (59), a 100KΩ fixed resistor with a rated power of 5W (60), a 1MΩ fixed resistor with a rated power of 5W (61), a 10Ω resistor left terminal (62), a 100Ω resistor left terminal (63), a 10Ω and 1KΩ resistor shared terminal (64), a 100Ω and 10KΩ resistor shared terminal (65), a 1KΩ and 100KΩ resistor shared terminal (66), a 10KΩ and 1MΩ resistor shared terminal (67), a 100KΩ resistor right terminal (68), and a 1MΩ resistor right terminal (69).

2. The multifunctional RLC experiment instrument according to claim 1, characterized in that: The rear panel (70) is provided with a 10mH-90mH step inductance adjustment knob (71), a 1mH-9mH step inductance adjustment knob (72), a 0.1mH-0.9mH step inductance adjustment knob (73), a 0.01mH-0.09mH step inductance adjustment knob (74), a 10mH-90mH step inductance left terminal (75), a 10mH-90mH and 1mH-9mH step inductance common terminal (76), a 1mH-9mH and 0.1mH-0.9 A common terminal (77) for a 0.1mH-0.9mH stepping inductor, a common terminal (78) for a 0.1mH-0.9mH and a 0.01mH-0.09mH stepping inductor, a right terminal (79) for a 0.01mH-0.09mH stepping inductor, a left terminal (80) for a 0.1H inductor, a right terminal (81) for a 0.1H inductor, a 0.1H inductor (82), a 0.05H inductor (83), an iron rod (84), an upper terminal (85) for a 0.05H inductor, and a lower terminal (86) for a 0.05H inductor.

3. The multifunctional RLC experiment instrument according to claim 1, characterized in that: The left panel (87) is provided with a 100 μF capacitor (88), a 220 μF capacitor (89), a 470 μF capacitor (90), a 1000 μF capacitor (91), a 100 μF capacitor positive electrode terminal (92), a 100 μF capacitor negative electrode terminal (93), a 220 μF capacitor positive electrode terminal (94), a 220 μF capacitor negative electrode terminal (95), a 470 μF capacitor positive electrode terminal (96), and a 470 μF capacitor negative electrode terminal (97). 7), a 1000 μF capacitor positive terminal (98), a 1000 μF capacitor negative terminal (99), a 0.1 μF capacitor (100), a 10 μF capacitor (101), a 4 μF first capacitor (102), a 4 μF second capacitor (103), a 1 MΩ resistor (104), a 0.1 μF capacitor left terminal (105), a 0.1 μF capacitor right terminal (106), a capacitor connected to a lower wire (107), and a capacitor connected to an upper wire (108).

4. The multifunctional RLC experiment instrument according to claim 1, characterized in that: The upper panel (109) shown in the figure is equipped with an experimental instrument handle (110), a low-pressure mercury lamp base (111), a low-pressure mercury lamp switch (112), a low-pressure mercury lamp power connection line (113), a left speaker terminal (114), a speaker (115), a right speaker terminal (116), a left low-pressure small light bulb terminal (117), a low-pressure small light bulb (118), and a right low-pressure small light bulb terminal (119).

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