Unlock instant, AI-driven research and patent intelligence for your innovation.

A Broadening Method of Sensor Frequency Response

A sensor and frequency response technology, which is applied in the widening field of sensor frequency response, can solve a large number of problems such as mechanical structure and hardware circuits, and achieve the effect of saving hardware circuits and saving costs

Active Publication Date: 2022-07-05
JIANGSU DONGHUA TEST CORP
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conventional sensor frequency response expansion method is to add a force feedback measurement device inside the sensor, which measures the input force through the servo balance between the feedback force (or torque) and the input force (or torque), and the sensor can be further improved through force feedback. frequency response range, this method requires a large number of mechanical structures and hardware circuits to achieve

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A Broadening Method of Sensor Frequency Response
  • A Broadening Method of Sensor Frequency Response
  • A Broadening Method of Sensor Frequency Response

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0102] The technical invention will now be described in further detail with reference to the accompanying drawings. These drawings are schematic diagrams, and only illustrate the basic structure of the technical invention in a schematic manner, so they only show the structure related to the technical invention.

[0103] like Figure 1 to Figure 5 As shown, the sensor to be corrected and the reference sensor are placed on the vibration table, and the frequency response characteristics of the sensor to be corrected are obtained through the vibration table ( image 3 ), according to the obtained frequency response characteristics, the correction coefficient ( Figure 4 ), and perform least squares polynomial fitting on the correction coefficient to obtain the fitted polynomial ( Figure 5 ), design an arbitrary frequency response filter according to the fitted polynomial, bring the corresponding filter into the DSP digital signal processor, and correct the sensor frequency resp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a method for widening the frequency response of a sensor. After obtaining the frequency response characteristics of the sensor, the method calculates a frequency response correction coefficient, performs least squares fitting on it, and designs a corresponding arbitrary frequency response filter according to the fitted polynomial. The filter weight coefficient is obtained, and the filter weight coefficient is written into the DSP digital signal processor, and the data of the sensor response is processed in time to realize the widening of the frequency response range of the sensor. This method can realize the correction calculation of the frequency response of the sensor only by using the real-time calculation method of the DSP digital signal processor, and design the corresponding arbitrary frequency response filter according to the polynomial after fitting. The data is processed in real time, this method saves the hardware circuit required for routine correction and saves the cost.

Description

Technical field: [0001] The invention relates to a method for widening the frequency response of a sensor, and belongs to the technical field of sensor measurement. Background technique: [0002] Sensor frequency response: The frequency response characteristics of the sensor, the frequency range that can be measured correctly, and the collected signal can be guaranteed not to be distorted within this frequency range. For the sensor measurement system, it can be understood as a single degree of freedom system, which determines the frequency response characteristics of the sensor from the design principle. The conventional sensor frequency response expansion method is to add a force feedback measurement device inside the sensor, which measures the input force through the servo balance between the feedback force (or torque) and the input force (or torque). Through the force feedback, the sensor can be further improved. The frequency response range of this method requires a lot...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G01H17/00
CPCG01H17/00Y02T90/00
Inventor 陈泳焦亮王江波
Owner JIANGSU DONGHUA TEST CORP