CN214310718U - Automatic calibrating device for signal amplifier - Google Patents
Automatic calibrating device for signal amplifier Download PDFInfo
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- CN214310718U CN214310718U CN202022986859.8U CN202022986859U CN214310718U CN 214310718 U CN214310718 U CN 214310718U CN 202022986859 U CN202022986859 U CN 202022986859U CN 214310718 U CN214310718 U CN 214310718U
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- signal amplifier
- control computer
- calibration
- digital multimeter
- signal
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Abstract
The utility model discloses an automatic calibration device of a signal amplifier, which is characterized by comprising a multifunctional calibration source, a calibrated signal amplifier, a digital multimeter, a control computer and a GPIB bus; the multifunctional calibration source generates an excitation electric signal for calibration, and the signal is amplified by the signal amplifier and sent to the digital multimeter; the control computer is connected with and controls the multifunctional calibration source through a GPIB bus, and the digital multimeter acquires signals and is connected to the control computer.
Description
Technical Field
The utility model relates to a signal amplifier automatic calibration device, in particular to signal amplifier realize automatic calibration's device belongs to signal processing technology field.
Background
The signal amplifier is an electric signal amplification processing device, can amplify electric signals with the frequency from 10Hz to 100kHz according to requirements, improves the signal transmission quality, solves the problem that a receiving terminal cannot receive weak signals, and is widely applied to the fields of electronics and communication. The signal amplifier has the characteristics of multiple channels and multiple ranges, and the common calibration method adopts a manual calibration method, so that the operation is complex, the workload is large, the working efficiency is low, and the artificial error is easy to generate to influence the test result.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is accomplished signal amplifier's calibration with the method that hardware and software combine, improves work efficiency, reduces human error.
In order to solve the technical problem, the technical solution of the present invention is to provide an automatic calibration device for a signal amplifier, which is characterized in that the automatic calibration device comprises a multifunctional calibration source, a calibrated signal amplifier, a digital multimeter, a control computer and a GPIB bus; the multifunctional calibration source generates an excitation electric signal for calibration, and the signal is amplified by the signal amplifier and sent to the digital multimeter; the control computer is connected with and controls the multifunctional calibration source through a GPIB bus, and the digital multimeter acquires signals and is connected to the control computer.
And after the digital multimeter collects signals and is connected to a control computer, the control computer automatically processes the signals through LABVIEW software.
Drawings
FIG. 1 is a schematic view of the structure connection scheme of the present invention;
FIG. 2 is a flow chart of a signal calibration process;
FIG. 3 is a block diagram of a data acquisition portion + raw record and report generation portion routine; in this case, 3a denotes a data acquisition part LABVIEW program block, and 3b denotes an original record and report generation part LABVIEW program block.
Detailed Description
In order to make the present invention more comprehensible, preferred embodiments are described in detail below with reference to the accompanying drawings.
Examples
The calibration device consists of a multifunctional calibration source, a calibrated signal amplifier, a digital multimeter, a control computer (containing automatic calibration software) and a GPIB bus. The multifunctional calibration source generates a calibration driving electrical signal, which is amplified by a signal amplifier, sent to the digital multimeter, and received by the digital multimeter. The control computer (containing automatic calibration software) controls the multifunctional calibration source to output standard electric signals through a GPIB bus, then the signals amplified by the digital multimeter synchronous acquisition amplifier finish the calibration process, the initial acquisition work of data is finished, and then the LABVIEW software processes the acquired data and automatically fills the data into corresponding original record and report templates to generate calibration original records and reports, thereby finishing the whole calibration process.
The calibration software is compiled by industrial change software LABVIEW, and automatically sends and receives instructions through the instrument control module digital multimeter and the multifunctional calibration source, so as to complete the output and acquisition of signals, and the flow chart is shown in FIG. 2.
The utility model has the advantages that: the calibration device adopts a method of combining hardware and software, can be used for calibrating a multi-channel and multi-range signal amplifier, realizes the automation of the calibration process, improves the working efficiency and reduces the human error.
Claims (2)
1. An automatic calibration device of a signal amplifier is characterized by comprising a multifunctional calibration source, a calibrated signal amplifier, a digital multimeter, a control computer and a GPIB bus; the multifunctional calibration source generates an excitation electric signal for calibration, and the signal is amplified by the signal amplifier and sent to the digital multimeter; the control computer is connected with and controls the multifunctional calibration source through a GPIB bus, and the digital multimeter acquires signals and is connected to the control computer.
2. The apparatus of claim 1, wherein the digital multimeter collects signals and is connected to a control computer, and the control computer automatically processes the signals through LABVIEW software.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022986859.8U CN214310718U (en) | 2020-12-10 | 2020-12-10 | Automatic calibrating device for signal amplifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022986859.8U CN214310718U (en) | 2020-12-10 | 2020-12-10 | Automatic calibrating device for signal amplifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214310718U true CN214310718U (en) | 2021-09-28 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022986859.8U Active CN214310718U (en) | 2020-12-10 | 2020-12-10 | Automatic calibrating device for signal amplifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214310718U (en) |
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2020
- 2020-12-10 CN CN202022986859.8U patent/CN214310718U/en active Active
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