CN216117676U - System for rapidly diagnosing signal quality of sensor on vibration test product - Google Patents
System for rapidly diagnosing signal quality of sensor on vibration test product Download PDFInfo
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- CN216117676U CN216117676U CN202122164302.0U CN202122164302U CN216117676U CN 216117676 U CN216117676 U CN 216117676U CN 202122164302 U CN202122164302 U CN 202122164302U CN 216117676 U CN216117676 U CN 216117676U
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Abstract
A system for rapidly diagnosing the sensor signal quality on a vibration test product is characterized in that a control sensor (5) and a measuring sensor (6) are installed on the vibration test product (8), the system comprises a handheld signal analyzer (1) and a signal exciter (2), the control sensor (5) is connected with the handheld signal analyzer (1) through a control sensor wire (3), and the measuring sensor (6) is connected with the handheld signal analyzer (1) through a measuring sensor wire (4); the signal exciter (2) is an inner hexagonal wrench. The problem that the signal quality of the control sensor (5) and the signal quality of the measuring sensor (6) cannot be diagnosed quickly is solved, and the implementation efficiency of the vibration test is improved.
Description
Technical Field
The utility model relates to a system for diagnosing signal quality of an acceleration sensor, in particular to a system for rapidly diagnosing signal quality of a sensor on a vibration test product.
Background
At present, vibration tests are commonly used for the following purposes: (1) searching for the resonant frequency of the product; (2) screening initial faults of the product caused by factors such as poor assembly and the like; (3) and testing whether the structural strength of the product can bear the requirements of the structural strength of the whole life cycle specified by national standards, industrial standards, enterprise standards and the like. In order to achieve the above purpose, when performing the vibration test, in addition to the necessary control sensors (at least 2, depending on the number of product fixing points) according to the customer test outline, it is necessary to install measurement sensors (1 less, ten or more, and several tens or hundreds in some cases) according to the customer requirements. The measuring sensors are positioned in the product and distributed at different parts of the product.
However, in actual testing, the vibration testing stand was located in the factory building and the vibration control instrument was located in the sound isolation control room. After the control sensor and the measuring sensor are installed, whether the connection between the sensor and the sensor line is proper or not cannot be ensured (the sensor line is not screwed or is screwed too tightly, or the sensor/sensor line is damaged, so that sensor signals are abnormal) so that a tester usually only performs pre-tightening on a product shell on which the measuring sensor is installed, and the product shell can be tightened after the product and the tool thereof are installed on a vibration test bed, all the sensors are connected to a vibration test controller located in a sound insulation control room, and all the sensor signals are tested to be normal; if there is an anomaly in one or more sensor signals, the product housing must be reopened and the sensors with the anomalies (usually because the sensor wires are not or too tight, or the sensor/sensor wires have been damaged) are individually removed before the final tightening of the product housing is possible. Therefore, the test is time-consuming and labor-consuming, and the test efficiency is seriously influenced; therefore, how to quickly diagnose the signal quality of the acceleration sensor becomes a technical difficulty faced in the field.
Disclosure of Invention
The present invention is directed to solving the above-mentioned problems of the prior art by providing a system for rapidly diagnosing the quality of a sensor signal on a vibration test product.
In order to achieve the purpose, the technical solution of the utility model is as follows: the system comprises a handheld signal analyzer and a signal exciter, wherein the control sensor is connected with the handheld signal analyzer through a control sensor line, and the measuring sensor is connected with the handheld signal analyzer through a measuring sensor line.
The signal exciter is an inner hexagonal wrench.
When the control sensor and the measuring sensor are charge sensors, the system also comprises a charge amplifier, the handheld signal analyzer is connected with the charge amplifier, and the charge amplifier is respectively connected with the control sensor and the measuring sensor; or when the control sensor is a charge sensor, the system also comprises a charge amplifier, the handheld signal analyzer is connected with the charge amplifier, and the charge amplifier is connected with the control sensor; or when the measuring sensor is a charge sensor, the system also comprises a charge amplifier, the handheld signal analyzer is connected with the charge amplifier, and the charge amplifier is connected with the measuring sensor.
Compared with the prior art, the utility model has the beneficial effects that:
the utility model adopts a signal exciter to generate acceleration signals, and then a hand-held signal analyzer analyzes the signal quality of a control sensor and a measurement sensor one by one; the problem that the signal quality of a control sensor and a measurement sensor cannot be rapidly diagnosed is solved, and the implementation efficiency of a vibration test is improved.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic structural diagram of the control sensor and the measurement sensor in the utility model, which are both charge sensors.
In the figure: the device comprises a handheld signal analyzer 1, a signal exciter 2, a control sensor wire 3, a measuring sensor wire 4, a control sensor 5, a measuring sensor 6, a product fixing point 7, a product 8 and a charge amplifier 9.
Detailed Description
The utility model is described in further detail below with reference to the following description of the drawings and the detailed description.
Referring to fig. 1-2, a system for rapidly diagnosing sensor signal quality on a vibration test product 8 having a control sensor 5 and a measurement sensor 6 mounted thereon. The system comprises a handheld signal analyzer 1 and a signal exciter 2, wherein a control sensor 5 is connected with the handheld signal analyzer 1 through a control sensor wire 3, and a measuring sensor 6 is connected with the handheld signal analyzer 1 through a measuring sensor wire 4; the control sensor 5 is used for generating a control signal, the measuring sensor 6 is used for acquiring a response signal of the product 8, and the signal exciter 2 is used for generating an acceleration signal.
Referring to fig. 1 to 2, the signal exciter 2 is an M10 allen key.
Referring to fig. 1 to 2, the hand-held signal analyzer 1 is used with a voltage sensor, and if the hand-held signal analyzer is a charge sensor, the charge sensor is connected to a charge amplifier 9, and the charge amplifier 9 is connected to the hand-held signal analyzer 1. The method comprises the following specific steps: when the control sensor 5 and the measuring sensor 6 are charge sensors, the system further comprises a charge amplifier 9, the handheld signal analyzer 1 is connected with the charge amplifier 9, and the charge amplifier 9 is respectively connected with the control sensor 5 and the measuring sensor 6; or when the control sensor 5 is a charge sensor, the system further comprises a charge amplifier 9, the hand-held signal analyzer 1 is connected with the charge amplifier 9, and the charge amplifier 9 is connected with the control sensor 5; or when the measuring sensor 6 is a charge sensor, the system further comprises a charge amplifier 9, the hand-held signal analyzer 1 is connected with the charge amplifier 9, and the charge amplifier 9 is connected with the measuring sensor 6.
Referring to fig. 1-2, in operation, the system first installs the control sensor 5 near the product fixing point 7 and connects the control sensor wire 3 with the control sensor 5; the measuring sensor 6 is installed inside the product 8 according to the customer's request and the measuring sensor wire 4 is connected with the measuring sensor 6. The number of control sensor lines 3 and control sensors 5 is determined according to the number of product fixing points 7, typically one control sensor 5 per product fixing point, the number of measuring sensors 6 being specified by the customer. After all sensors are installed, the sensor line corresponding to each sensor is connected to the handheld signal analyzer 1 in sequence, the signal exciter 2 is used for lightly knocking nearby each sensor, and whether the signal is normal or not is checked through a screen of the handheld signal analyzer 1. If it is normal, then check the next sensor signal; if not, it may be continued after rejection (usually because the sensor wires are not or too tight, or the sensor/sensor wires have been damaged). Therefore, the problem that the signal quality of the control sensor 5 and the signal quality of the measurement sensor 6 cannot be diagnosed quickly is solved, and the implementation efficiency of the vibration test is improved.
The foregoing is a more detailed description of the utility model in connection with specific preferred embodiments and it is not intended that the utility model be limited to these specific details. For those skilled in the art to which the utility model relates, several simple deductions or substitutions may be made without departing from the spirit of the utility model, and the above-mentioned structures should be considered as belonging to the protection scope of the utility model.
Claims (3)
1. A system for rapid diagnosis of sensor signal quality on a vibration test product (8) having a control sensor (5) and a measurement sensor (6) mounted thereon, characterized by: the system comprises a handheld signal analyzer (1) and a signal exciter (2), wherein a control sensor (5) is connected with the handheld signal analyzer (1) through a control sensor line (3), and a measuring sensor (6) is connected with the handheld signal analyzer (1) through a measuring sensor line (4).
2. The system for rapidly diagnosing sensor signal quality on a vibration test product according to claim 1, wherein: the signal exciter (2) is an inner hexagonal wrench.
3. The system for rapidly diagnosing sensor signal quality on a vibration test product according to claim 1, wherein: when the control sensor (5) and the measuring sensor (6) are charge sensors, the system further comprises a charge amplifier (9), the handheld signal analyzer (1) is connected with the charge amplifier (9), and the charge amplifier (9) is respectively connected with the control sensor (5) and the measuring sensor (6);
or when the control sensor (5) is a charge sensor, the system also comprises a charge amplifier (9), the hand-held signal analyzer (1) is connected with the charge amplifier (9), and the charge amplifier (9) is connected with the control sensor (5);
or when the measuring sensor (6) is a charge sensor, the system also comprises a charge amplifier (9), the handheld signal analyzer (1) is connected with the charge amplifier (9), and the charge amplifier (9) is connected with the measuring sensor (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122164302.0U CN216117676U (en) | 2021-09-08 | 2021-09-08 | System for rapidly diagnosing signal quality of sensor on vibration test product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122164302.0U CN216117676U (en) | 2021-09-08 | 2021-09-08 | System for rapidly diagnosing signal quality of sensor on vibration test product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216117676U true CN216117676U (en) | 2022-03-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CN202122164302.0U Active CN216117676U (en) | 2021-09-08 | 2021-09-08 | System for rapidly diagnosing signal quality of sensor on vibration test product |
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| CN (1) | CN216117676U (en) |
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2021
- 2021-09-08 CN CN202122164302.0U patent/CN216117676U/en active Active
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