A signal generating device for shock tube performance testing

Abstract

The application provides a signal generating device for performance test of a shock tube, comprising a processing module, which is configured to generate a first pulse width modulation signal for starting the shock tube, generate a pulse signal for determining the working state mode of the shock tube, and generate a second pulse width modulation signal for controlling the working of the shock tube. The various signals required for the test of the shock tube are integrated, so that the device is small in size, simple to use, convenient in test function, and capable of simplifying the test environment and reducing the labor cost.

Description

Technical Field

[0001] This invention relates to the field of oscillator testing technology, and in particular to a signal generation device for oscillator performance testing. Background Technology

[0002] With the development and advancement of technology, the application range of oscillators is becoming increasingly wide and their usage is increasing. Therefore, confirming the quality of oscillators is particularly important. Using a dedicated oscillator performance testing device provides one-click testing, simplifying the operation process for testers and lowering the barrier to entry. To ensure the comprehensive functionality of the oscillator, it is necessary to provide it with oscillation signals, status signals, and trigger signals to detect its performance under different conditions. Testers must carefully memorize the testing requirements to operate the dedicated oscillator performance test, which causes considerable difficulties in actual testing. Summary of the Invention

[0003] In view of the above problems, the present invention aims to provide a simple, integrated, and dedicated performance testing device for oscillating tubes. With this device, users can control the oscillating tube to have different behaviors by applying different signals to it.

[0004] A signal generating device for testing the performance of an oscillator tube includes:

[0005] Processing module, used for:

[0006] A first pulse width modulation signal is generated to cause the oscillator to oscillate.

[0007] Generate a pulse signal that determines the operating mode of the oscillating tube;

[0008] A second pulse width modulation signal is generated to control the operation of the oscillator.

[0009] The first signal output module is connected to the processing module and the oscillating tube respectively, and is used to output the first pulse width modulation signal and the second pulse width modulation signal to the oscillating tube respectively;

[0010] The second signal output module is connected to the processing module and the oscillating tube respectively, and is used to output the pulse signal to the oscillating tube.

[0011] Furthermore, it also includes:

[0012] A power switch module is connected to both the processing module and an external power source.

[0013] The processing module is also used for:

[0014] When the power switch module is detected to be turned on, a power supply control signal is generated, and

[0015] A power-off control signal is generated when the power switch module is detected to be disconnected.

[0016] The power control module, connected to both the oscillating tube and the processing module, is used for:

[0017] Upon receiving the power supply control signal, the power supply circuit between the processing module and the oscillating tube is connected to supply power to the oscillating tube.

[0018] Upon receiving the power-off control signal, the power supply circuit between the processing module and the oscillating tube is disconnected, and power supply to the oscillating tube is stopped.

[0019] Furthermore, it also includes:

[0020] The oscillation switch module is connected to the processing module;

[0021] The processing module generates the first pulse width modulation signal when it detects that the oscillation switch module is turned on.

[0022] Furthermore, the working state mode includes a first state mode and a second state mode;

[0023] The signal generating device further includes:

[0024] A state switching module, connected to the processing module, is used to manually control the switching of the working state mode;

[0025] When the processing module detects that the working state mode has switched to the first state mode, it generates a pulse signal corresponding to the first state mode; and when it detects that the working state mode has switched to the second state mode, it generates a pulse signal corresponding to the second state mode.

[0026] Furthermore, it also includes:

[0027] A signal conditioning module, connected to the processing module, provides users with the ability to manually select parameter values ​​related to the second pulse width modulation signal;

[0028] The processing module is used to generate a corresponding second pulse width modulation signal based on the parameter value selected by the signal conditioning module.

[0029] Furthermore, it also includes:

[0030] The test mode switching module is used to control the test mode of the signal generating device to switch between manual test mode and automatic test mode;

[0031] The automatic test triggering module provides users with the option to manually trigger the automatic test mode;

[0032] The storage module stores automated test scripts;

[0033] The processing module is connected to the test mode switching module, the automatic test triggering module, and the storage module, respectively, and is used to: when the test mode switching module is detected to switch to the automatic test mode and the automatic test triggering module is detected to be triggered, call the automatic test script and generate the first pulse width modulation signal, the second pulse width modulation signal, and the pulse signal according to the test process of the automatic test script.

[0034] Furthermore, it also includes:

[0035] The display timing module is connected to the processing module and is used to start timing and display when the processing module generates the first pulse width modulation signal.

[0036] Furthermore, the power control module controls the connection and disconnection of the power supply circuit via relays.

[0037] Furthermore, the first signal output module adjusts the levels of the first pulse width modulation signal and the second pulse width modulation signal through an operational amplifier and then outputs them to the oscillator.

[0038] Furthermore, the second signal output module adjusts the level of the pulse signal through a transistor and then outputs it to the oscillating transistor.

[0039] The beneficial technical effects of this invention are: it integrates various signals required for generating oscillating tube tests, is small in size, simple to use, provides convenient testing functions, simplifies the testing environment, and reduces labor costs. Attached Figure Description

[0040] Figure 1 This is a schematic diagram of a signal generation device for testing the performance of an oscillating tube according to the present invention. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0043] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but this is not intended to limit the scope of the invention.

[0044] See Figure 1 A signal generating device for testing the performance of an oscillating tube, comprising:

[0045] Processing module (1), used for:

[0046] Generate a first pulse width modulation signal, the first PWM signal, to cause the oscillator (2) to oscillate.

[0047] Generate a pulse signal that determines the operating mode of the oscillator (2);

[0048] A second pulse width modulation signal, the second PWM signal, is generated to control the operation of the oscillator (2);

[0049] The first signal output module (3) is connected to the processing module (1) and the oscillator (2) respectively, and is used to output the first pulse width modulation signal and the second pulse width modulation signal to the oscillator (2) respectively;

[0050] The second signal output module (4) is connected to the processing module (1) and the oscillator (2) respectively, and is used to output pulse signals to the oscillator (3).

[0051] Furthermore, it also includes:

[0052] The power switch module is connected to the processing module (1) and an external power source respectively; it is turned on and off manually.

[0053] The processing module (1) is used to: generate a power supply control signal when the power switch module (5) is detected to be turned on, and generate a power-off control signal when the power switch module (5) is detected to be turned off;

[0054] The power control module (6), connected to the oscillating tube (2) and the processing module (1) respectively, is used for:

[0055] Upon receiving a power supply control signal, the power supply circuit between the processing module (1) and the oscillator (2) is activated to supply power to the oscillator (2); and

[0056] When a power-off control signal is received, the power supply circuit between the processing module (1) and the oscillator (2) is disconnected, and the power supply to the oscillator (2) is stopped.

[0057] Specifically, the oscillating tube can be either an electronic oscillating tube or a ceramic oscillating tube.

[0058] Furthermore, it also includes:

[0059] The oscillation switch module (7) is connected to the processing module (1) and is manually controlled to be turned on and off;

[0060] The processing module (1) is connected to the oscillation switch module (7) and is used to generate a first pulse width modulation signal when the oscillation switch module (7) is detected to be turned on.

[0061] Furthermore, it also includes:

[0062] The working state mode includes the first state mode and the second state mode;

[0063] The signal generating device further includes:

[0064] The state switching module (8) is connected to the processing module (1) and is used to manually control the switching of the working state mode, that is, to manually control the switching between the first state mode and the second state mode.

[0065] The processing module (1) is used to: generate a pulse signal corresponding to the first state mode when the working state mode is detected to switch to the first state mode, and generate a pulse signal corresponding to the second state mode when the working state mode is detected to switch to the second state mode.

[0066] The first state mode can be a high state mode, and the second state mode can be a low state mode. In the high state mode, the oscillator is in the first measurement range, and in the low state mode, the oscillator is in the second measurement range. The lower limit of the first measurement range is higher than the upper limit of the second measurement range.

[0067] Furthermore, it also includes:

[0068] The signal conditioning module (9) is connected to the processing module (1) and provides the user with the ability to manually select parameter values ​​related to the second pulse width modulation signal;

[0069] The processing module (1) is used to generate a corresponding second pulse width modulation signal according to the parameter value selected by the signal conditioning module (9).

[0070] Different values ​​selected by the signal conditioning module (9) result in different second pulse width modulation signals.

[0071] Preferably, the signal conditioning module (9) is a 6.3V button.

[0072] Furthermore, it also includes:

[0073] Includes manual testing mode and automatic testing mode;

[0074] The test mode switching module (10) manually controls the switching of the test mode of the signal generating device between manual test mode and automatic test mode;

[0075] The automatic test triggering module (11) provides users with the option to manually trigger the automatic test mode;

[0076] Storage module (12) stores automatic test scripts;

[0077] The processing module (1) is connected to the test mode switching module (10), the automatic test triggering module (11) and the storage module (12) respectively, and is used to: when the test mode switching module (10) is detected to switch to the automatic test mode, and when the automatic test triggering module (11) is detected to be triggered, call the automatic test script and generate the first pulse width modulation signal, the second pulse width modulation signal and the pulse signal according to the test process of the automatic test script.

[0078] Specifically, the test mode switching module (10) selects between automatic and manual testing. For manual testing, the oscillation start switch module (7), state switching module (8), and signal adjustment module (9) need to be pressed manually. In other words, the tester can select any function button on the front panel device to perform various operations according to the test situation. If the automatic test button is pressed, the processing module will sequentially execute the oscillation start signal, pulse signal, etc., and automatically generate the changing signal according to the changes in the signal parameters in the test script.

[0079] In manual testing mode, by selecting the corresponding function button on the device, a PWM wave signal with an amplitude of ±3.15V, a period of 133us, and a duty cycle of 50% can be output to the oscillator, as well as a PWM wave signal with an amplitude of ±0.75V, a period of 100us, and a duty cycle of 12%.

[0080] In manual testing mode, by selecting the state switching module (8) on the device, a pulse signal with an amplitude of 4V and a period of 100us can be output to the oscillator.

[0081] The output of the oscillator is connected to a spectrum analyzer and a power meter. The spectrum analyzer can obtain the frequency of the oscillator, and the power meter can obtain the power of the oscillator. This allows us to observe the performance of the oscillator.

[0082] Furthermore, it also includes:

[0083] The display timing module (13) is connected to the processing module (1) and is used to start timing and display when the processing module generates the first pulse width modulation signal.

[0084] The display timing module (13) uses a 6-digit LED display to show the time. The first two digits are in hours, the middle two digits are in minutes, and the last two digits are in seconds.

[0085] When the oscillation switch module (7) is pressed, it outputs an oscillation signal to start timing, and displays the time on the digital tube in the form of hours, minutes and seconds to provide timing information to the tester.

[0086] Furthermore, the power control module (6) controls the connection and disconnection of the power supply circuit through relays.

[0087] Specifically, a T92 type relay is used for switch control.

[0088] Furthermore, the first signal output module (3) adjusts the levels of the first pulse width modulation signal and the second pulse width modulation signal through an operational amplifier and then outputs them to the oscillator (2).

[0089] Furthermore, the second signal output module (4) adjusts the level of the pulse signal through a transistor and outputs it to the oscillator (2).

[0090] Specifically, the signal generating device also includes a front panel;

[0091] The power switch module (5), oscillation switch module (7), state switching module (8), signal conditioning module (9), test mode switching module (10), automatic test trigger module (11), and display timing module (13) are all located on the front panel.

[0092] The test signal generator of this invention integrates the functions required for testing oscillating tubes. It allows for one-button operation based on the functional modules on the front panel and offers the option of automatic or manual testing. This not only simplifies the testing environment but also reduces labor costs.

[0093] This dedicated performance testing device has the following beneficial effects:

[0094] 1. It has comprehensive functions and can meet the requirements of oscillator tube testing, including oscillation signal, pulse signal for working mode, second pulse width modulation signal for working, and timing display function;

[0095] 2. Small size and simple to use. When testing the oscillating tube, this device requires an external power supply and a cable connected to the oscillating tube being tested.

[0096] 3. Convenient testing function: By selecting the function buttons on the front panel of this device, various test signals can be output to the oscillating tube at any time, and timing is also provided to assist the tester in conducting the test.

[0097] 4. It has an automatic test process function. When the external power is connected, it switches to the automatic test mode and triggers the automatic test. The processing module directly and automatically generates various signals according to the process on the test script to complete the automatic test process.

[0098] The above are merely preferred embodiments of the present invention and are not intended to limit the implementation methods and protection scope of the present invention. Those skilled in the art should recognize that any equivalent substitutions and obvious changes made based on the description and illustrations of the present invention should be included within the protection scope of the present invention.

Claims

1. A signal generating device for testing the performance of an oscillating tube, characterized in that, include: Processing module, used for: A first pulse width modulation signal is generated to cause the oscillator to oscillate. Generate a pulse signal that determines the operating mode of the oscillating tube; A second pulse width modulation signal is generated to control the operation of the oscillator. The first signal output module is connected to the processing module and the oscillating tube respectively, and is used to output the first pulse width modulation signal and the second pulse width modulation signal to the oscillating tube respectively; The second signal output module is connected to the processing module and the oscillating tube respectively, and is used to output the pulse signal to the oscillating tube; The oscillation switch module is connected to the processing module; The processing module generates the first pulse width modulation signal when it detects that the oscillation switch module is turned on. The working state mode includes a first state mode and a second state mode; The signal generating device further includes: A state switching module, connected to the processing module, is used to manually control the switching of the working state mode; When the processing module detects that the working state mode has switched to the first state mode, it generates a pulse signal corresponding to the first state mode; and when it detects that the working state mode has switched to the second state mode, it generates a pulse signal corresponding to the second state mode. The first state mode is a high state mode, and the second state mode is a low state mode; In the high-state mode, the oscillating tube is in the first measurement range, and in the low-state mode, the oscillating tube is in the second measurement range. The lower limit of the first measurement range is higher than the upper limit of the second measurement range.

2. The signal generating device for testing the performance of an oscillating tube as described in claim 1, characterized in that, Also includes: A power switch module is connected to both the processing module and an external power source. The processing module is also used for: When the power switch module is detected to be turned on, a power supply control signal is generated, and A power-off control signal is generated when the power switch module is detected to be disconnected. The power control module, connected to both the oscillating tube and the processing module, is used for: Upon receiving the power supply control signal, the power supply circuit between the processing module and the oscillating tube is connected to supply power to the oscillating tube. Upon receiving the power-off control signal, the power supply circuit between the processing module and the oscillating tube is disconnected, and power supply to the oscillating tube is stopped.

3. The signal generating device for testing the performance of an oscillating tube as described in claim 1, characterized in that, Also includes: A signal conditioning module, connected to the processing module, provides users with the ability to manually select parameter values ​​related to the second pulse width modulation signal; The processing module is used to generate a corresponding second pulse width modulation signal based on the parameter value selected by the signal conditioning module.

4. The signal generating device for testing the performance of an oscillating tube as described in claim 3, characterized in that, Also includes: The test mode switching module is used to control the test mode of the signal generating device to switch between manual test mode and automatic test mode; The automatic test triggering module provides users with the option to manually trigger the automatic test mode; The storage module stores automated test scripts; The processing module is connected to the test mode switching module, the automatic test triggering module, and the storage module, respectively, and is used to: when the test mode switching module is detected to switch to the automatic test mode and the automatic test triggering module is detected to be triggered, call the automatic test script and generate the first pulse width modulation signal, the second pulse width modulation signal, and the pulse signal according to the test process of the automatic test script.

5. The signal generating device for testing the performance of an oscillating tube as described in claim 1, characterized in that, Also includes: The display timing module is connected to the processing module and is used to start timing and display when the processing module generates the first pulse width modulation signal.

6. The signal generating device for testing the performance of an oscillating tube as described in claim 2, characterized in that, The power control module controls the connection and disconnection of the power supply circuit via relays.

7. The signal generating device for testing the performance of an oscillating tube as described in claim 1, characterized in that, The first signal output module adjusts the levels of the first pulse width modulation signal and the second pulse width modulation signal through an operational amplifier and then outputs them to the oscillator.

8. The signal generating device for testing the performance of an oscillating tube as described in claim 1, characterized in that, The second signal output module adjusts the level of the pulse signal through a transistor and then outputs it to the oscillating transistor.

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