CN209296263U - A kind of hand-held modality data acquisition device - Google Patents
A kind of hand-held modality data acquisition device Download PDFInfo
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- CN209296263U CN209296263U CN201821731095.4U CN201821731095U CN209296263U CN 209296263 U CN209296263 U CN 209296263U CN 201821731095 U CN201821731095 U CN 201821731095U CN 209296263 U CN209296263 U CN 209296263U
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- data acquisition
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Abstract
A kind of hand-held modality data acquisition device, it is the response signal that its A/D chip acquisition exciting force sensor-triggered and acceleration transducer is controlled by single-chip microcontroller, it saves the data in SD card, and it is shown on liquid crystal display with curve form, after completing the data acquisition of all measuring points, the analysis of mode software will be carried out in data input computer in SD card.The small light weight of the device volume, it is easy to operate automatic, it is suitable for the modal test of various structures.
Description
Technical field:
The utility model relates to a kind of mould measurement device, specifically a kind of hand-held modality data acquisition device.
Background technique:
Modal test is widely used in many engineering structures such as machinery, building, Aeronautics and Astronautics, common mode
Test carries out exciting using power hammer, by acquisition exciting force and acceleration responsive signal, can be calculated using model analysis software
Obtain result.But modality data acquisition device is usually that main frame cooperation data collecting card is used to realize, this apparatus body
Long-pending and quality is larger, i.e., using laptop also not Portable belt.
Utility model content:
The purpose of this utility model is that providing a kind of hand-held modality data acquisition dress in view of the deficiencies of the prior art
It sets.The device carries out data acquisition and storage using single-chip microcontroller control, easy to operate.
The technical solution of the utility model includes:
The output line of exciting force snesor is electrically connected to charge amplification module, and acceleration transducer is fixed on measured structure
On part, output line is electrically connected to amplifying circuit, and charge amplification module and amplifying circuit are electrically connected to the A/D chip of single-chip microcontroller.When
When starting mould measurement, so that exciting force snesor is generated pulse signal by hammering, triggers single-chip microcontroller control through charge amplification module
The acquisition of its A/D chip to be made, while acquiring the response signal of acceleration transducer, single-chip microcontroller will acquire data and be saved in SD card, and with
Curve form is shown in liquid crystal display, that is, completes a modality data acquisition, then repeat this process, until all measuring points are tested
It is complete, terminate test, acquired results are all in SD card, then are input in computer and carry out model analysis.
Further, the SD card is changed to USB flash disk or solid state hard disk.
The beneficial effects of the utility model are: compared with the prior art, the utility model is a kind of hand-held modal data
Acquisition device, the small light weight of overall dimensions are easy to operate.
Detailed description of the invention:
Fig. 1 is the structural schematic diagram of the utility model.
Marked in the figure: 1 exciting force snesor, 2 acceleration transducers, 3 charge amplification modules, 4 amplifying circuits, 5 SD cards, 6
Liquid crystal display, 7 single-chip microcontrollers.
Specific embodiment:
As shown in Figure 1, a kind of hand-held modality data acquisition device.1 exciting force snesor, 2 acceleration transducers, 3 electricity
Lotus amplification module, 4 amplifying circuits, 5SD card, 6 liquid crystal displays, 7 single-chip microcontrollers.
The output line of exciting force snesor 1 is electrically connected to charge amplification module 3, acceleration transducer 2 is fixed on tested
On structural member, output line is electrically connected to amplifying circuit 4, and charge amplification module 3 and amplifying circuit 4 are electrically connected to single-chip microcontroller 7
A/D chip.When starting mould measurement, so that exciting force snesor 1 is generated pulse signal by hammering, touched through charge amplification module 3
It sends out single-chip microcontroller 7 and controls the acquisition of its A/D chip, while acquiring the response signal of acceleration transducer 2, single-chip microcontroller 7 will acquire data and protect
It is stored to SD card 5, and liquid crystal display 6 is shown in curve form, that is, completes a modality data acquisition, then repeats this process, directly
It has been tested to all measuring points, has terminated test, acquired results are all in SD card 5, then are input in computer and carry out model analysis.
The hand-held modality data acquisition device working principle is: single-chip microcontroller controls its A/D chip acquisition exciting force and passes
The response signal of sensor triggering and acceleration transducer, saves the data in SD card, and be shown in liquid crystal display with curve form
On, after completing the data acquisition of all measuring points, the analysis of mode software will be carried out in data input computer in SD card.
Claims (2)
1. a kind of hand-held modality data acquisition device, it is characterized in that: the output line of exciting force snesor (1) is electrically connected to charge
Amplification module (3), acceleration transducer (2) are fixed on measured structure part, and output line is electrically connected to amplifying circuit (4), electricity
Lotus amplification module (3) and amplifying circuit (4) are electrically connected to the A/D chip of single-chip microcontroller (7)；Exciting force snesor (1) generates pulse letter
Number, charge amplification module (3) triggering single-chip microcontroller (7) controls the acquisition of its A/D chip, while acquiring the response of acceleration transducer (2)
Signal, SD card (5) save acquisition data, and liquid crystal display (6) shows data and curves.
2. a kind of hand-held modality data acquisition device according to claim 1, it is characterised in that: SD card (5) is changed to U
Disk or solid state hard disk.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821731095.4U CN209296263U (en) | 2018-10-25 | 2018-10-25 | A kind of hand-held modality data acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821731095.4U CN209296263U (en) | 2018-10-25 | 2018-10-25 | A kind of hand-held modality data acquisition device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209296263U true CN209296263U (en) | 2019-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821731095.4U Expired - Fee Related CN209296263U (en) | 2018-10-25 | 2018-10-25 | A kind of hand-held modality data acquisition device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209296263U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084947A (en) * | 2018-10-25 | 2018-12-25 | 北京理工大学 | A kind of hand-held modality data acquisition device |
-
2018
- 2018-10-25 CN CN201821731095.4U patent/CN209296263U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109084947A (en) * | 2018-10-25 | 2018-12-25 | 北京理工大学 | A kind of hand-held modality data acquisition device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190823 Termination date: 20201025 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |