CN213842187U

CN213842187U - Test system of dynamic tuning gyro rebalance loop

Info

Publication number: CN213842187U
Application number: CN202022947161.5U
Authority: CN
Inventors: 周海龙; 陈巧黎; 庞永亮; 刘春�
Original assignee: Shaanxi Aerospace Times Navigation Equipment Co ltd
Current assignee: Shaanxi Aerospace Times Navigation Equipment Co ltd
Priority date: 2020-12-10
Filing date: 2020-12-10
Publication date: 2021-07-30
Anticipated expiration: 2030-12-10

Abstract

The utility model provides a test system of dynamic transfer top rebalance return circuit, including the host computer, signal collection station, analog to digital converter and power, signal collection station passes through the analog to digital converter and gathers the test signal in the top rebalance return circuit module, analog to digital converter passes through the voltage signal in the interface transmission top rebalance return circuit module, and convert voltage signal into digital signal transmission to signal collection station, accurate reacing test data, signal collection station passes to the host computer with it, operating personnel only need look over the data that signal collection station uploaded on the host computer, can judge whether stable the test data of top rebalance return circuit module, need not artifical record data.

Description

Test system of dynamic tuning gyro rebalance loop

Technical Field

The utility model relates to a top test technical field, concretely relates to dynamic adjusting top rebalance return circuit's test system.

Background

The gyroscope is a vital measuring instrument in a space instrument, a dynamic tuning gyroscope rebalancing loop circuit is generally adopted for detecting a test gyroscope, a standard instrument is adopted in a traditional production field to test the dynamic tuning rebalancing loop circuit through a switching cable, equipment operation and data recording are manually realized, the rebalancing loop circuit needs switching of test functions of various projects, data recording and data analysis in the test process, the process is complicated, errors are easy to occur, data are inaccurate, and the labor intensity is high.

SUMMERY OF THE UTILITY MODEL

For solving the defects of the prior art, the utility model provides an accurate test data that reachs need not the test system of the dynamic tuning top rebalance return circuit of artifical record data.

The technical scheme of the utility model is that: the utility model provides a test system of dynamic tuning top rebalance return circuit, includes top rebalance return circuit module, still includes host computer, signal collection station, analog to digital converter and power, signal collection station passes through analog to digital converter and gathers the test signal of top rebalance return circuit module to reach the host computer after with test signal conversion the top rebalance return circuit is tested on the host computer, the power is host computer, signal collection station and analog to digital converter power supply.

Preferably, the analog-to-digital converter is respectively connected with a motor test interface, an excitation test interface, an amplification factor test interface, a damping test interface, a bandwidth test interface, a zero acquisition interface and a power monitoring interface, the motor test interface is used for transmitting an amplitude signal, a phase signal and a frequency signal of a motor, the excitation test interface is used for transmitting an amplitude signal and a frequency signal of a torquer, the alternating current signal of the gyro rebalance loop module is transmitted through the amplification factor testing interface, the damping state signal of a gyro output circuit in the gyro rebalance loop module is transmitted through the damping state testing interface, the bandwidth of the gyroscope in the gyroscope rebalancing loop module is transmitted through the bandwidth testing interface, the static voltage signal of the gyroscope rebalancing loop module is transmitted through the zero acquisition interface, and the voltage signal and the current signal of the power supply are transmitted through the power supply monitoring interface.

The utility model has the advantages that: the utility model provides a test system of dynamic transfer top rebalance return circuit, including the host computer, signal collection station, analog to digital converter and power, signal collection station passes through the analog to digital converter and gathers the test signal in the top rebalance return circuit module, analog to digital converter passes through the voltage signal in the interface transmission top rebalance return circuit module, and convert voltage signal into digital signal transmission to signal collection station, accurate reacing test data, signal collection station passes to the host computer with it, operating personnel only need look over the data that signal collection station uploaded on the host computer, can judge whether stable the test data of top rebalance return circuit module, need not artifical record data.

Drawings

FIG. 1 is a schematic block diagram of a test system for a dynamically tuned gyroscope rebalance loop;

fig. 2 is a schematic diagram of the circuit connection between the analog-to-digital converter and the rebalancing loop circuit of the dynamic tuning gyro.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The utility model discloses technical scheme as follows: a test system of a dynamic tuning gyro rebalance loop comprises a gyro rebalance loop module, as shown in figure 1, an upper computer, a signal collector and an analog-to-digital converter, wherein the signal collector adopts a model of NI-usb4431 and has the functions of multi-path signal output and multi-path signal synchronous collection, the test function of the signal generator, the spectrum analyzer, the oscilloscope and the digital voltmeter can be realized, the transmission signal collector collects the test signal of the gyro rebalance loop module through the analog-to-digital converter, converts the test signal and then uploads the test signal to the upper computer, the gyroscope rebalancing loop is tested on the transmission upper computer, and it needs to be explained that an operator only needs to check the data uploaded by the signal collector on the upper computer, the test data of the gyro rebalance loop module can be judged whether to be accurate and stable, and the transmission power supply supplies power to the upper computer, the signal collector and the analog-to-digital converter.

According to the figure 2, the dynamically tuned gyroscope rebalancing module comprises a measured gyroscope and a power supply, the measured gyroscope is sequentially connected with a signal processing circuit, an analog switch, a power amplifier and a gyroscope output circuit, the analog switch is connected with a delayer, the delayer plays a role of controlling the analog switch, the delayer is also connected with a delay circuit, the delay circuit outputs a signal of the analog switch controlled by the delayer, the output end of the power amplifier is connected with the measured gyroscope to form a gyroscope rebalancing loop, the gyroscope output circuit outputs an angular rate signal, the gyroscope output circuit is also connected with an analog-to-digital conversion unit, the analog-to-digital conversion unit converts the signal into a digital signal to output, the measured gyroscope is also connected with a motor power supply and an excitation power supply, the motor power supply drives a motor to work, the excitation power supply enables a torquer on the gyroscope to be electrified, and the power supply supplies power to the gyroscope.

According to the transmission, the analog-to-digital converter is arranged on the integrated circuit board, and the integrated circuit board is also provided with a motor test interface, an excitation test interface, an amplification test interface, a damping test interface, a bandwidth test interface, a zero acquisition interface and a power supply monitoring interface which are respectively connected with the analog-to-digital converter; the motor power supply is connected with the motor test interface through a detection line, the amplitude signal, the phase signal and the frequency signal of the motor are transmitted through the transmission motor test interface, and the amplitude signal, the phase signal and the frequency signal of the motor are collected to be used for detecting the working state of the motor; the excitation power supply is connected with the excitation test interface through a detection line, an amplitude signal and a frequency signal of the torquer are transmitted through the excitation test interface, and the amplitude signal and the frequency signal of the torquer are collected and used for detecting the working state of the torquer; the detection line of the output end of the amplification factor test interface is connected to the input end of the signal processing circuit, the detection line of the input end of the amplification factor test interface is connected to the output end of the gyro output circuit, the alternating current signal of the gyro rebalance loop module is transmitted through the transmission amplification factor test interface, and the alternating current signal of the gyro rebalance loop module is collected for detecting the stability of the gyro rebalance loop; the detection line of the input end of the damping state test interface is connected to the output end of the gyro output circuit, the detection line of the output end of the damping state test interface is connected to the input end of the gyro output circuit, the damping state signal of the gyro output circuit in the gyro rebalance loop module is transmitted through the damping state test interface, and the damping state of the gyro output circuit is collected for detecting the stability of the gyro output circuit; when the gyro rebalance loop module works, the delayer controls the analog switch to be closed, so that the gyro, the signal processing circuit and the analog on-off power amplifier form a loop, a detection line at the input end of the bandwidth test interface is connected to the output end of the analog switch, a detection line at the output end of the bandwidth test interface is connected to the input end of the analog switch, the bandwidth of the gyro rebalance loop is transmitted through the transmission bandwidth test interface, and the bandwidth range of the gyro rebalance loop is acquired and used for detecting the bandwidth range of a transmission signal of the gyro rebalance loop; the zero position acquisition interface is connected with the output end of the gyro output circuit through the detection line, transmits a static voltage signal of the gyro output circuit through the transmission zero position acquisition interface, and acquires the static voltage signal of the gyro output circuit to detect zero position offset of the gyro output circuit and whether the output signal is influenced; the power supply is connected with the power supply monitoring interface through a detection line, voltage signals and current signals of the power supply are transmitted through the transmission power supply monitoring interface, and the voltage signals and the current signals of the power supply are collected to judge whether the power supply is stable or not; the transmitted test signals are analog signals, the analog-to-digital converter converts the test signals transmitted by the interface into digital signals and transmits the digital signals to the signal collector, the signal collector obtains the types of the test signals according to analysis, and then the test signals are uploaded to an upper computer, so that test data can be obtained in real time.

The integrated circuit board is also provided with a digital signal acquisition interface, and the digital signal acquisition interface directly transmits the digital signal output by the analog-to-digital conversion unit to the signal acquisition unit, so that the angular rate data output by the gyroscope can be directly obtained.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides a test system in dynamic transfer top rebalance return circuit, includes top rebalance return circuit module, its characterized in that: the test device comprises a gyro rebalance loop module, a signal acquisition unit, an analog-to-digital converter and a power supply, wherein the signal acquisition unit acquires a test signal of the gyro rebalance loop module through the analog-to-digital converter, converts the test signal and then uploads the converted test signal to the upper computer, the gyro rebalance loop is tested on the upper computer, and the power supply supplies power to the upper computer, the signal acquisition unit and the analog-to-digital converter.

2. The system of claim 1, wherein the dynamically tuned gyroscope rebalance loop comprises: the analog-to-digital converter is respectively connected with a motor test interface, an excitation test interface, an amplification factor test interface, a damping test interface, a bandwidth test interface, a zero acquisition interface and a power monitoring interface, the motor test interface is used for transmitting an amplitude signal, a phase signal and a frequency signal of a motor, the excitation test interface is used for transmitting an amplitude signal and a frequency signal of a torquer, the AC signal of the gyro rebalance loop module is transmitted through the amplification factor test interface, the damping state signal of a gyro output circuit in the gyro rebalance loop module is transmitted through the damping test interface, the bandwidth of the gyroscope in the gyroscope rebalancing loop module is transmitted through the bandwidth testing interface, the static voltage signal of the gyroscope rebalancing loop module is transmitted through the zero acquisition interface, and the voltage signal and the current signal of the power supply are transmitted through the power supply monitoring interface.