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Digital signal and analog signal conversion accuracy test method of synchro module

A self-adjusting machine and conversion accuracy technology, applied in the direction of analog/digital conversion calibration/test, measurement device, instrument, etc., can solve the problem of inability to obtain digital signal digital signal conversion accuracy, etc., and achieve good application prospects and strong practicability , the effect of high measurement accuracy

Active Publication Date: 2015-10-21
BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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Problems solved by technology

[0006] However, in the prior art, there is a problem that it is impossible to obtain the conversion accuracy from the digital signal to the output analog signal of the auto-angle machine and the conversion of the analog signal output by the auto-angle machine into a digital signal.

Method used

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  • Digital signal and analog signal conversion accuracy test method of synchro module
  • Digital signal and analog signal conversion accuracy test method of synchro module
  • Digital signal and analog signal conversion accuracy test method of synchro module

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Embodiment Construction

[0051] In order to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0053] Step 1: Set the output of the signal source as the reference signal required by the user, and connect the reference signal to the synchro RDC and DRC; the reference signal includes a high-voltage signal RH and a low-voltage signal RL;

[0054] Step 2: Enter the angle value A in the angle input box from the number on the operation surface of the virtual instrument to the synchro part, and perform the following test according to the input angle value A:

[0055] a. If 0≤A image 3 shown;

[0056] Then click the angle output button to make the DRC output the analog value of the angle value A; read the value measu...

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Abstract

The invention discloses a digital signal and analog signal conversion accuracy test method of a selsyn module. The selsyn module comprises a virtual instrument operative interface, a resolver to digital converter (RDC) and a digital to resolver converter (DRC), and the virtual instrument operative interface controls RDC and DRC circuits. By means of the digital signal and analog signal conversion accuracy test method of the selsyn module, the defect that the conversion accuracy can not be checked in the process of converting a digital signal to a selsyn output analog signal and converting the selsyn output analog signal to the digital signal during prior testing is overcome.

Description

technical field [0001] The invention relates to the technical field of mutual conversion between analog and digital quantities of angles or displacements, and in particular to a method for testing the conversion accuracy of digital signals and analog signals of a synchro module. Background technique [0002] Some control devices of modern control systems often need to use the analog quantity of angle. Angle measurement is widely used in industrial control. However, due to the complexity of high-precision angle measurement instruments such as the calibration source of the synchro, it is inconvenient to use and has a large volume. , high cost, poor versatility and other problems hinder the testing and calibration of this type of equipment, so it is of great significance to develop a conversion accuracy testing method that uses a common testing instrument and is easy to operate. [0003] In the prior art, the synchro module can be used to complete the conversion of the digital ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03M1/10G01D5/14G01B7/30
Inventor 黄月芳赵砚博胡志臣张晓王聪毕硕
Owner BEIJING AEROSPACE MEASUREMENT & CONTROL TECH
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