CN218767152U - Portable component acquisition and detection device - Google Patents
Portable component acquisition and detection device Download PDFInfo
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- CN218767152U CN218767152U CN202222921421.0U CN202222921421U CN218767152U CN 218767152 U CN218767152 U CN 218767152U CN 202222921421 U CN202222921421 U CN 202222921421U CN 218767152 U CN218767152 U CN 218767152U
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Abstract
The utility model provides a detection device is gathered to portable components and parts, it includes quick-witted case and collection verification board, it sets up at quick-witted incasement portion to gather verification board, the machine case includes the shell body, the home panel, a display screen, control button, the probe jack, the knob regulator, switch, power socket, the USB interface, the case lid, radiator fan and locking buckle, the first terminal surface of shell body is equipped with the home panel, the display screen is located the top of home panel, the machine case is back detachable cavity, it all sets up the mounting hole to gather verification board four corners, it inlays and establishes on the shell body to gather verification board fixed mounting at quick-witted incasement, the case lid passes through the locking buckle. The display screen of machine case is connected with the display element who gathers the verification board, and the switch of machine case is connected with the power of gathering the verification board, the utility model discloses a case lid inlays through the locking buckle and establishes on the shell body, convenient dismantlement, and the simple operation has solved current verification device function singleness and has operated complicated scheduling problem.
Description
Technical Field
The utility model relates to a components and parts collection testing field, concretely relates to detection device is gathered to portable components and parts.
Background
In the process of developing and applying components, the functional performance, the ultimate capacity and the environmental adaptability of the components need to be verified so as to investigate the key parameter performance of the components or expose the weak links of the components, and an improvement suggestion is provided for the material selection, the process and the design of a component developer, so that a user is guided to correctly and reasonably use the components, the personnel and property losses caused by the fact that the development is not qualified and the improper use are reduced, and the optimization of related product standards and the calibration of product files are further met. The device performance verification device analyzes and determines or evaluates the functions and performances of the device by measuring the electrical characteristics under a certain condition and comparing the output response result and the expected value under a certain excitation condition.
The realization of board-level verification test requires determination of test characteristics, design of a test method and application of special test equipment, and generally requires test equipment with multiple types of comprehensive components on a board, a functional performance tester on the market at present can only monitor a single component, a display screen and a verification board are separated, reading data is inconvenient, verification efficiency is low, verification data cannot be transmitted to a computer for processing, and verification flow is complex, so that a portable component acquisition and detection device with complete functions and convenience in operation is needed.
SUMMERY OF THE UTILITY MODEL
Problem to prior art exists, the utility model provides a portable components and parts collection and detection device, case lid in the case is inlayed through the locking buckle and is established on the shell body, convenient dismantlement, and set up the USB interface connection computer, the convenience is transmitted verification data, simplify and verify the flow, through gathering the integrated design between each unit on the verification board, not only satisfied the user and illustrated visual demand to the key performance of components and parts, and can know the probability and the performance that components and parts in service signal's various compositions appear through the display screen directly perceived moreover.
The utility model provides a portable components and parts acquisition and detection device, it includes quick-witted case and acquisition and verification board, the acquisition and verification board sets up in the quick-witted incasement portion, quick-witted case, it includes shell body, main panel, display screen, control button, probe jack, knob regulator, switch, power socket, USB interface, case lid, radiator fan and locking buckle, the first terminal surface of shell body is equipped with main panel, the display screen is located the top of main panel, the control button is located under the display screen, switch, knob regulator and probe jack are located in proper order under the control button, and the button regulator is located between probe jack and the switch, one side fixed mounting that the shell body is close to switch has power socket and USB interface, the USB interface is located above the power socket, the second terminal surface of shell body is installed the case lid, the case lid middle part is equipped with radiator fan, the locking buckle sets up the four corners position department of case lid; the case is a hollow cavity with the detachable back face, mounting holes are formed in four corners of the collection and verification plate, the collection and verification plate is fixedly mounted in the case through the mounting holes and mounting pieces, and the case cover is embedded in the outer shell through locking buckles arranged at the four corners of the case cover; the knob regulator of the case is electrically connected with the acquisition and verification board through a wire; the collecting and verifying plate comprises a sampling plate and a verifying plate, and the sampling plate is in communication connection with the verifying plate; the power socket is connected with the input end of the power supply through a power line, and the power supply is connected with the power switch through a wire.
Preferably, the acquisition board includes the sampling unit, the verification board includes signal processing unit, AD converting unit, memory cell, central control unit, display element and power, the probe jack with the input of sampling unit is connected, the output of sampling unit with the input of signal processing unit is connected, the output of signal processing unit respectively with the input of AD converting unit and memory cell is connected, AD converting unit reaches the output of memory cell respectively with the input of central control unit is connected, the output of central processing unit with the input of display element is connected, the output of display element pass through the wire with display screen electric connection, the power respectively with sampling unit, signal processing unit, AD converting unit, memory cell, central control unit and display element electricity are connected.
Preferably, the number of the control keys is four, and the control keys are respectively a test key, a zero setting key, a confirming key and a canceling key.
Preferably, the input end of the storage unit is connected with the AD conversion unit, and a chip of the AD conversion unit adopts a differential input and parallel output chip.
Compared with the prior art, the utility model, have following advantage:
1. the utility model discloses a detection device is gathered to portable components and parts, on the one hand, the case lid inlays through locking buckle and establishes on the shell body, convenient dismantlement, and on the other hand, collection verification board setting can reach the purpose of quick installation inside the box through the quick dismantlement of case lid to, the box can protect collection verification board, guarantees its life. And the verification data is transmitted to a computer for processing through the USB interface, so that the data is conveniently transmitted, the acquisition and verification process is simplified, the operation is convenient, and the problems of single function, low efficiency and the like of the conventional acquisition and verification device are solved.
2. The utility model discloses portable components and parts collection detection device, through gathering mutually supporting between each unit on the verification board, demonstrate the curve trend of components and parts key parameter through the display screen, know the probability and the performance that components and parts appear in the various compositions of board in service signal, realize the function of various types of components and parts and performance test's visualization.
3. The utility model discloses be provided with radiator fan, can dispel the heat fast to the quick-witted case, prevent that quick-witted incasement portion high temperature from influencing the life of inside collection verification board.
Drawings
Fig. 1 is a schematic view of the overall structure of the portable component collecting and detecting device of the present invention;
FIG. 2 is a schematic view of the overall structure of the collecting and verifying plate of the present invention;
FIG. 3 is a schematic diagram of a sampling unit of the collecting and verifying plate of the present invention;
fig. 4 is a schematic diagram of a signal processing unit of the acquisition and verification board of the utility model;
FIG. 5 is a schematic diagram of the AD conversion unit of the acquisition and verification board of the present invention;
FIG. 6 is a schematic diagram of a storage unit of the collection verification board of the present invention;
FIG. 7 is a schematic diagram of a central control unit of the acquisition and verification board of the present invention;
FIG. 8 is a schematic diagram of a display unit of the collecting and verifying plate of the present invention;
fig. 9 is the utility model discloses well power schematic of gathering verification board.
The main reference numbers:
the device comprises a case 1, an outer shell 101, a main panel 102, a display screen 103, a control key 104, a probe jack 105, a knob regulator 106, a power switch 107, a power socket 108, a USB interface 109, a box cover 110, a cooling fan 111, a locking buckle 112, an acquisition and verification board 2, a sampling unit 21, a signal processing unit 22, an AD conversion unit 23, a storage unit 24, a central control unit 25, a display unit 26 and a power supply 27.
Detailed Description
The technical contents, structural features, and achieved objects and effects of the present invention will be described in detail with reference to the accompanying drawings.
The utility model provides a detection device is gathered to portable components and parts, as shown in fig. 1, machine case 1 and collection verification board 2, collection verification board 2 sets up inside machine case 1, machine case 1 includes shell body 101, main panel 102, display screen 103, control button 104, probe jack 105, knob regulator 106, switch 107, power socket 108, USB interface 109, case lid 110, radiator fan 111 and locking buckle 112, the first terminal surface of shell body 101 is equipped with main panel 102, display screen 103 is located the top of main panel 102, control button 104 is located under display screen 103, control button 104 is equipped with four, be the test key respectively, zero adjustment key, confirm key and cancel key, switch 107, knob regulator 106 and probe jack 105 are located under control button 104 in proper order, and button regulator 106 is located between probe jack 105 and switch 107, one side fixed mounting that shell body 101 is close to switch 107 has power socket 108 and USB interface 109, USB interface 109 is located above power socket 108, the second terminal surface of shell body 101 installs switch 110, 110 is equipped with radiator fan 111 in the middle part of case lid 112, locking buckle 112 is located in the four corners; case 1 is the cavity of back detachable, and the mounting hole is all seted up in 2 four corners of collection verification board, and collection verification board 2 sets up inside case 1, and case lid 110 inlays through locking buckle 112 and establishes on outer casing 101.
As shown in fig. 2, the collection and verification board 2 includes a collection board and a verification board, the collection board includes a sampling unit 21, the verification board includes a signal processing unit 22, an AD conversion unit 23, a storage unit 24, a central control unit 25, a display unit 26 and a power supply 27, the probe jack 105 is connected with the input end of the sampling unit 21, the output end of the sampling unit 21 is connected with the input end of the signal processing unit 22, the output end of the signal processing unit 22 is respectively connected with the input ends of the AD conversion unit 23 and the storage unit 24, the output ends of the AD conversion unit 23 and the storage unit 24 are respectively connected with the input end of the central control unit 25, the output end of the central processing unit 25 is connected with the input end of the display unit 26, the output end of the display unit 26 is electrically connected with the display screen 103 through a wire, the power supply 27 is respectively electrically connected with the sampling unit 21, the signal processing unit 22, the AD conversion unit 23, the storage unit 24, the central control unit 25 and the display unit 26. The knob regulator 106 of the case 1 is electrically connected to the central control unit 25 through a wire, the power socket 108 is connected to the input terminal of the power supply 27 through a power cord, and the power supply 27 is connected to the power switch 107 through a wire.
As shown in fig. 5, the AD conversion unit 23 adopts a differential input and parallel output manner.
As shown in fig. 6, the memory unit 24 employs a 9-bit asynchronous FIFO device with a capacity of 4KB, supports a write frequency of 50MHz, and an input terminal of the memory unit 24 is connected to the AD conversion unit 23.
It is right that the following combination embodiment the utility model discloses a portable components and parts collection detection device does further description:
use the utility model discloses carry out the collection of components and parts and examine time measuring, to guarantee that each unit installation is intact, rationally distributed and smooth and easy operation in quick-witted case 1 and the collection verification board 2.
The operation process of the embodiment is realized as follows:
as shown in fig. 1 and fig. 2, first, the power socket 108 of the chassis 1 is connected to the power-on socket through the power line, the power switch 106 is pressed to turn on the function verification device, then the probe jacks 105 are respectively connected to the devices to be tested through the detection lines, the current magnitude is adjusted through the knob adjuster 106, finally, the acquisition verification board 2 starts to work, the probe jacks 105 transmit signals to the sampling unit 21, the sampling unit 21 performs capacitance compensation on the signals through the solid relays, the compensated signals enter the signal processing unit 22, the signal processing unit 22 performs following, vertical voltage gain, vertical position control and differential processing on the signals, the processed signals are transmitted to the AD conversion unit 23, the AD conversion unit 23 performs digital conversion on the differential signals, the results are output to the storage unit 24 and the central control unit 25 in parallel, the storage unit 24 stores the data obtained by fast conversion in the storage unit 24 for display and call by the central control unit 25, the central control unit 25 reads the data in the storage unit 24 and transmits the data to the display unit 26, and the display unit 26 displays the performance curve of the central control unit 25 processed by the central control unit 103.
Fig. 3-9 in the present disclosure are schematic circuit diagrams, which are only used for reference, and the specific contents are based on the following written descriptions.
As shown in fig. 3, the sampling unit 21 implements ac and dc coupling switching and capacitance compensation, the AQY282SX is a solid-state relay, when a low level is input to the negative terminal of the relay by the controller, a voltage difference occurs between the control terminals of the relay, the other two terminals of the relay are turned on to short-circuit the capacitor, and at this time, a signal directly flows to the next stage through the relay, which is dc coupling; if the controller inputs high level, no pressure difference exists between the control ends of the relay, the other two ends of the relay are disconnected, and current flows to the next stage through the capacitor, namely AC coupling. Capacitance compensation is realized at two ends of the circuit in a resistor voltage division mode, and the circuit is applied to avoid the situation because the resistor has obvious parasitic capacitance characteristics when receiving high-frequency signals and the parasitic capacitance attenuates the passing signals.
As shown in fig. 4, the signal processing unit 22 implements amplification and differential processing of signals, and the signal processing unit 22 includes a follower, a voltage gain control circuit and a differential driving circuit, and directly returns an output to an inverting input terminal according to the virtual interrupt characteristic of the amplifier to form a very large input resistance, so that the current input to the anode of the amplifier is very small, and the output current is very large, thereby achieving the requirement of signal fidelity. The gain control circuit is realized by a variable gain amplifier, the amplification times are controlled by controlling the input pressure difference, so that the gain of a signal is accurately controlled, the waveform can be perfectly presented on the display screen 103, the waveform cannot jump out of the screen to be incomplete, the observation result is influenced, the single-end input is converted into differential output through a differential driver, the differential can resist the influence of interference on high-frequency signals, small signals can be used for transmitting information, and the integrity of the signal is also guaranteed.
As shown in fig. 5, the AD conversion unit 23 converts the analog signal into a digital signal, the input of the chip needs to adopt a differential mode, the interference of the common-mode voltage can be reduced by using the differential mode, the dynamic performance is improved, the SDA9288 adopts a parallel output mode, the bit error rate is effectively suppressed, and the data transmission speed is improved.
As shown in fig. 6, the storage unit 24 stores the digital signal temporarily in the memory for the central control unit 25 to call, and the storage unit 24 uses a 9-bit asynchronous FIFO device with a capacity of 4KB to support a writing frequency of 50MHz. The input terminal is connected to the AD conversion unit 23, and the data output from the AD conversion unit 23 is stored in the storage unit 24 and then sent to the central control unit 25.
As shown in fig. 7, 8 and 9, after the central processing unit 25 processes the received signal, the signal is sent to the display unit 26 to show the performance curve through the display screen 103, and the power supply 27 supplies power to each unit on the acquisition and verification board 2.
The above embodiments are only intended to describe the preferred embodiments of the present invention, but not to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design spirit of the present invention should fall within the protection scope defined by the claims of the present invention.
Claims (4)
1. A portable component collecting and detecting device is characterized by comprising a case and a collecting and verifying plate, wherein the collecting and verifying plate is arranged in the case,
the case comprises an outer case, a main panel, a display screen, a control key, a probe jack, a knob regulator, a power switch, a power socket, a USB interface, a case cover, a cooling fan and a locking buckle, wherein the main panel is arranged on a first end face of the outer case;
the case is a hollow cavity with the detachable back face, mounting holes are formed in four corners of the collection and verification plate, the collection and verification plate is fixedly mounted in the case through the mounting holes and mounting pieces, and the case cover is embedded in the outer shell through locking buckles arranged at the four corners of the case cover;
the knob regulator of the case is electrically connected with the acquisition and verification board through a wire; the collecting and verifying plate comprises a sampling plate and a verifying plate, and the sampling plate is in communication connection with the verifying plate;
the power socket is connected with the input end of the power supply through a power line, and the power supply is connected with the power switch through a wire.
2. The device as claimed in claim 1, wherein the sampling board comprises a sampling unit, the verification board comprises a signal processing unit, an AD conversion unit, a storage unit, a central control unit, a display unit and a power supply, the probe jack is connected with the input end of the sampling unit, the output end of the sampling unit is connected with the input end of the signal processing unit, the output end of the signal processing unit is connected with the input ends of the AD conversion unit and the storage unit, the AD conversion unit and the output end of the storage unit are connected with the input end of the central control unit, the output end of the central control unit is connected with the input end of the display unit, the output end of the display unit is electrically connected with the display screen through a wire, and the power supply is electrically connected with the sampling unit, the signal processing unit, the AD conversion unit, the storage unit, the central control unit and the display unit.
3. The device for collecting and detecting the portable components as claimed in claim 1, wherein the number of the control keys is four, and the four control keys are respectively a test key, a zero setting key, a confirming key and a canceling key.
4. The device for collecting and detecting portable components according to claim 2, wherein the input end of the storage unit is connected with the AD conversion unit, and a chip of the AD conversion unit adopts a differential input and parallel output chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222921421.0U CN218767152U (en) | 2022-11-03 | 2022-11-03 | Portable component acquisition and detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222921421.0U CN218767152U (en) | 2022-11-03 | 2022-11-03 | Portable component acquisition and detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218767152U true CN218767152U (en) | 2023-03-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222921421.0U Active CN218767152U (en) | 2022-11-03 | 2022-11-03 | Portable component acquisition and detection device |
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| Country | Link |
|---|---|
| CN (1) | CN218767152U (en) |
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2022
- 2022-11-03 CN CN202222921421.0U patent/CN218767152U/en active Active
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