CN211699411U

CN211699411U - Circuit analysis experiment box with detection device

Info

Publication number: CN211699411U
Application number: CN201922380423.1U
Authority: CN
Inventors: 廖智舟
Original assignee: Liuzhou Railway Vocational Technical College
Current assignee: Liuzhou Railway Vocational Technical College
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-10-16
Anticipated expiration: 2029-12-26

Abstract

The utility model provides a take detection device's circuit analysis experimental box, including experimental box and detection device, experimental box one side is equipped with the detection interface who is connected with the incasement by the survey component, detection device passes through the detection interface connection of data line with the experimental box, detection device includes VXI bus host computer case and VXI instrument module, VXI bus host computer case is used for providing VXI bus backplate and working power supply to VXI instrument module, VXI instrument module is used for detecting it to the incasement by survey component transmission testing signal, and show the testing result. The use method of the experimental box comprises the steps of inserting the VXI instrument module into a backboard groove of the main box, connecting the detection device with the experimental box, downloading measurement, calculating parameters, displaying programs, connecting the detection device with a display, testing, and calculating, processing and judging measurement results. The experiment box can meet the requirements of circuit analysis experiments, can efficiently detect electronic elements in the box, ensures the accuracy of the experiments, and has low cost and high efficiency.

Description

Circuit analysis experiment box with detection device

Technical Field

The utility model relates to a circuit analysis experimental box in the electrician's teaching especially relates to a take detection device's DJ-DL8 circuit analysis experimental box.

Background

The existing DJ-DL8 circuit analysis experiment box is special experimental equipment for students to learn the course of circuit analysis foundation, and is used for carrying out course related experiments, a circuit diagram for experiments is printed on the front side of the experiment box, an independent resistor, an inductor, a capacitor and a power supply are arranged on the back side of the experiment box, and students can use electronic elements in the box to carry out related circuit analysis experiments according to the circuit diagram; the existing DJ-DL8 circuit analysis experimental box has the following defects:

(1) the experimental box only has the function of performing circuit analysis course experiments, does not have the function of detecting the performance of electronic elements in the experimental box, does not have special equipment and special software at present, and performs efficient detection on all electronic devices in the experimental box;

(2) the experiment box is not provided with an interface with an automatic detection device, so that the electronic element in the experiment box can not be detected by using general detection equipment with a detection function, and the examination and the maintenance are not facilitated;

(3) the experiment box has large quantity of electronic elements (80 independent resistors, inductors, capacitors and power supplies), and has large workload and low efficiency if the electronic elements are detected one by using the traditional method.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a take detection device's circuit analysis experimental box to overcome the not enough of above-mentioned prior art existence.

The utility model adopts the technical proposal that:

a circuit analysis experiment box with a detection device comprises an experiment box, wherein an electronic element for experiment is arranged in the experiment box, the electronic element comprises a resistor, a capacitor and an inductor, one side of the experiment box is provided with a detection interface connected with the electronic element in the box, the detection interface comprises a common port and a detection port, the common port is grounded, the detection port comprises resistor detection ports R1, R2, R3 … RM, capacitor detection ports C1, C2, C3 … CN and inductor detection ports L1, L2 and L3 … LP, the resistor common end in the experiment box is grounded, the other ends of the resistor common end in the experiment box are respectively connected with resistor detection ports R1, R2 and R3 … RM, the capacitor common end in the experiment box is grounded, the other ends of the capacitor common end in the experiment box are respectively connected with capacitor detection ports C1, C2 and C3 … CN, the inductor common end in the experiment box is grounded, and the other ends of the inductor detection ports L1, L2 and L3 …;

the circuit analysis experiment box is also provided with a detection device which is a separated detection device, and the separated detection device is connected with a detection interface of the experiment box through a data line; the detection device comprises a VXI bus main case and a VXI instrument module; the VXI bus mainframe box is provided with a backboard slot and a VXI bus, the VXI bus mainframe box is used for providing a VXI bus backboard and a required working power supply for the VXI instrument module, and the VXI instrument module is used for sending detection signals to a resistor, a capacitor and an inductor in the VXI instrument module to detect the VXI instrument module and display a detection result;

the VXI instrument module comprises a VXI test control machine module, a VXI signal source module, a VXI digital multimeter module and a VXI relay matrix switch module, the VXI test control machine module, the VXI signal source module, the VXI digital multimeter module and the VXI relay matrix switch module are respectively inserted on the back plate groove and are connected through a VXI bus on the back plate groove, and the VXI relay matrix switch module is connected with a detection port of the experimental box through a data line;

the VXI test controller module is a VXI embedded test controller module, and the VXI signal source module is used for generating sine wave signals with wave amplitudes of 2V and 100Hz and used as an excitation source applied to the tested electronic element; the VXI digital multimeter module is used for measuring the values of alternating current and direct current voltage and current, resistance, capacitance and inductance; and the VXI relay matrix switch module is used for connecting the tested element in the experimental box with a VXI bus.

The further technical scheme is as follows:

the VXI bus main case adopts an HPE8401A case, a power supply and an air cooling system are arranged on the VXI bus main case, a display is configured on the VXI bus main case, the VXI signal source module is an HPE1445A arbitrary waveform generator, the VXI digital multimeter module is an HPE1410A digital multimeter, and the VXI relay matrix switch module selects an HPE1466 matrix switch module; the resistance detection ports R1, R2, R3 … RM, the capacitance detection ports C1, C2 and C3 … CN and the inductance detection ports L1, L2 and L3 … LP adopt jacks matched with D-type plugs of an HPE1466 matrix switch module.

Further: the VXI bus on the VXI bus main case comprises: the system comprises a VME computer bus, a trigger bus, an addition bus, a clock and synchronization line, a module identification line, a star line, a power distribution bus and a local bus;

since the technical scheme is used, the utility model relates to a take detection device's circuit analysis experimental box has following beneficial effect:

1. the circuit analysis experiment box not only can meet the function of circuit analysis course experiments in teaching, but also has the function of detecting the performance of electronic elements in the experiment box, is convenient for monitoring and maintaining electronic devices in the experiment box, and ensures the accuracy of the experiments;

2. the VXI instrument modules of the circuit analysis experiment box detection device are in interactive communication with VXI buses and data lines, all electronic devices in the experiment box can be efficiently detected, the system is accurate in operation, high in automation degree, high in detection precision and low in cost, and resources are saved, so that the original conditions that the maintenance work is heavy, time and labor are wasted are overcome;

3. the circuit analysis experiment box is provided with a separated detection device, the experiment box is provided with a detection port connected with an element in the box, the detection device is connected with the detection port through a data line, the detection device comprises a VXI bus main machine box and a VXI instrument module, the VXI instrument module can be directly inserted into a back plate groove of the VXI bus main machine box, and all the installation, maintenance and replacement are convenient;

4. the automatic detection device part of the experimental box can be separated from the experimental box, so that all experimental boxes with detection interfaces can be sequentially detected, the utilization rate of the automatic detection machine box is improved, the cost is reduced, and the automatic detection device has good economy.

The technical features of a circuit analysis experimental box with a detection device according to the present invention will be further described with reference to the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic diagram of a circuit analysis experimental box with a detection device;

fig. 2 is a schematic diagram of a VXI instrument module connection;

fig. 3 is a schematic structural diagram of a power supply system of a VXI instrument module;

FIG. 4 is a schematic diagram of a circuit analysis experimental box system with a detection device;

in the figure:

1-experimental box, 2-data line, 3-detection device, 301-VXI test control machine module, 302-VXI signal source module, 303-VXI digital multimeter module and 304-VXI relay matrix switch module.

Detailed Description

the circuit analysis experiment box is also provided with a detection device which is a separated detection device, and the separated detection device is connected with a detection interface of the experiment box through a data line; the detection device comprises a VXI bus main case and a VXI instrument module; the VXI bus mainframe box is provided with a backboard slot and a VXI bus, the VXI bus mainframe box is used for providing a VXI bus backboard and a required working power supply for the VXI instrument module, and the VXI instrument module is used for sending detection signals to a resistor, a capacitor and an inductor in the VXI instrument module to detect the VXI instrument module and displaying the detection result;

the VXI instrument module comprises a VXI test control machine module, a VXI signal source module, a VXI digital multimeter module and a VXI relay matrix switch module, the VXI test control machine module, the VXI signal source module, the VXI digital multimeter module and the VXI relay matrix switch module are respectively inserted on the back plate groove and are connected through a VXI bus on the back plate groove, and the VXI relay matrix switch module is connected with a detection port of the experimental box through a D-shaped plug and a data line of an HPE1466 matrix switch;

the VXI test controller module is a VXI embedded test controller module, the VXI signal source module is used for generating sine wave signals with wave amplitudes of 2V and 100Hz and used as an excitation source applied to the tested electronic element in the detection process, the VXI digital multimeter module is used for measuring the values of alternating current and direct current voltage and current, resistance, capacitance and inductance, and the VXI relay matrix switch module is used for connecting the tested element in the experimental box with a VXI bus.

The VXI bus main case adopts an HPE8401A case, a standard power supply and an air cooling system are arranged on the VXI bus main case, a display is configured on the VXI bus main case, so that a public power supply, cooling and electromagnetic shielding environment condition suitable for the working requirement of an instrument is provided (the working requirement of the instrument refers to the temperature of less than 45 ℃ and no electromagnetic radiation interference exists), the VXI signal source module is an HPE1445A arbitrary waveform generator compatible with the VXI bus, the VXI digital multimeter module is an HPE1410A digital multimeter module compatible with the VXI bus, the VXI relay matrix switch module is an HPE1466 matrix switch module, the HPE1466 matrix switch module is provided with 2D-type plugs, 64 pins of each D-type plug are 128 pins in total, and the measurement requirements of all electronic elements of the circuit analysis experiment case can be met; the resistance detection ports R1, R2, R3 … RM, the capacitance detection ports C1, C2 and C3 … CN and the inductance detection ports L1, L2 and L3 … LP adopt jacks matched with D-type plugs of an HPE1466 matrix switch module so as to be connected with a VXI matrix switch module of the detection device through data lines and the D-type plugs of the VXI relay matrix switch.

The VXI bus on the VXI bus main case comprises a VME computer bus, a trigger bus, an addition bus, a clock and synchronization line, a module identification line, a star-shaped line, a power distribution bus and a local bus;

the trigger bus is composed of 8 TTL trigger lines and 6 ECL trigger lines, the addition bus is used for adding analog signals to a single line, and output signals of at most 3 independent waveform generators are added to obtain a composite synthetic signal serving as an excitation source of another module; the clock and synchronous bus provides synchronous signals of two clocks and one clock; the module identification bus is used for detecting whether a module exists in the slot, identifying the physical position of a specific module or the number of the slot so as to indicate the actual physical position of the module; the STAR bus comprises two lines, STAR X and STAR Y; the power distribution bus is used for providing voltage for each module, and comprises: seven direct current voltages of + 2V, -2V, + 5V, -5V, + 12V, + 24V, -24V, the highest power is 268W.

Claims

1. A circuit analysis experimental box with a detection device comprises an experimental box, electronic elements used for experiments are arranged in the experimental box, and the electronic elements comprise a resistor, a capacitor and an inductor, and the circuit analysis experimental box is characterized in that:

one side of the experiment box is provided with a detection interface connected with electronic elements in the box, the detection interface comprises a common port and a detection port, the common port is grounded, the detection port comprises resistance detection ports R1, R2, R3 … RM, capacitance detection ports C1, C2, C3 … CN and inductance detection ports L1, L2 and L3 … LP, the resistance common end in the experiment box is grounded, the other ends of the resistance detection ports R1, R2 and R3 … RM are respectively connected with the resistance detection ports, the capacitance common end in the experiment box is grounded, the other ends of the capacitance common end in the experiment box are respectively connected with capacitance detection ports C1, C2 and C3 … CN, the inductance common end in the experiment box is grounded, and the other ends of the inductance detection ports L1, L2 and L3 … LP are respectively connected with the inductance detection ports;

the circuit analysis experiment box is also provided with a detection device which is a separated detection device, and the separated detection device is connected with a detection interface of the experiment box through a data line;

the detection device comprises a VXI bus main case and a VXI instrument module, wherein the VXI bus main case is provided with a backboard slot and a VXI bus, the VXI bus main case is used for providing a VXI bus backboard and a required working power supply for the VXI instrument module, and the VXI instrument module is used for detecting resistance, capacitance and inductance in the case and displaying a detection result;

the VXI test controller module is a VXI embedded test controller module, the VXI signal source module is used for generating sine wave signals with wave amplitudes of 2V and 100Hz and used as an excitation source applied to the tested electronic element, the VXI digital multimeter module is used for measuring the values of alternating current and direct current voltage and current, resistance, capacitance and inductance, and the VXI relay matrix switch module is used for connecting the tested element in the experimental box with a VXI bus.

2. The circuit analysis experiment box with detection device according to claim 1, characterized in that:

the VXI bus main case adopts an HPE8401A case, a power supply and an air cooling system are arranged on the VXI bus main case, a display is configured on the VXI bus main case, the VXI signal source module is an HPE1445A arbitrary waveform generator, and the VXI digital multimeter module is an HPE1410A digital multimeter; the VXI relay matrix switch module is an HPE1466 matrix switch module; the resistance detection ports R1, R2, R3 … RM, the capacitance detection ports C1, C2 and C3 … CN and the inductance detection ports L1, L2 and L3 … LP adopt jacks matched with D-type plugs of an HPE1466 matrix switch module.

3. The circuit analysis experiment box with detection device according to claim 2, characterized in that: the VXI bus on the VXI bus main case comprises: VME computer bus, trigger bus, add-on bus, clock and synchronization line, module identification line, star type line, power distribution bus and local bus.