A program-controlled multi-range acquisition circuit
A collection circuit and multi-range technology, which is applied in the direction of changing the range circuit, etc., to achieve the effect of reliable operation, overcoming inability to adapt, and simple structure
Active Publication Date: 2019-08-02
TIANJIN EMBEDTEC
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The traditional signal acquisition unit must consider the types and characteristics of the future external signal source when designing the system, and once the system design is completed, the change of the external signal can only actively adapt to the performance index of the acquisition device
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] Below, the substantive features and advantages of the present invention will be further described in conjunction with examples, but the present invention is not limited to the listed examples.
[0021] see figure 1 As shown, a program-controlled multi-range acquisition circuit includes:
[0022] The first input signal conditioning circuit, the second input signal conditioning circuit, the third input signal conditioning circuit, unipolar adjustment reference V ref circuit, a multi-channel analog switch 6 for switching the signal quantity output by an input signal conditioning circuit of different ranges, an analog-to-digital converter 8, an FPGA chip 10; the first input signal conditioning circuit, the second input signal conditioning circuit, the second The input terminals of the three-input signal conditioning circuit are respectively connected to the input positive and input negative of the signal source 1, and the unipolar adjustment refers to V ref The output ter...
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
Login to View More Abstract
The present invention relates to a program-controlled multi-range acquisition circuit. The program-controlled multi-range acquisition circuit comprises three sets of input signal conditioning circuits; the input ends of the three sets of input signal conditioning circuits are respectively connected with the input positive end and input negative end of a signal source; the output ends of an unipolar adjustment reference Vref circuit are connected with the input positive ends of the three sets of input signal conditioning circuits respectively; the output ends of the three sets of input signal conditioning circuits are connected with the corresponding input ends of an analog switch respectively; the output end of the analog switch is connected with the input end of an analog-to-digital converter; the output end of the analog-to-digital converter is connected with the programmable port of an FPGA chip; and the FPGA chip is also connected with the unipolar adjustment reference Vref circuit and the analog switch. With the program-controlled multi-range acquisition circuit of the invention adopted, the defect of the inadaptability of circuits in the prior art in system change can be eliminated. The program-controlled multi-range acquisition circuit has the advantages of simple structure, reliable operation and high applicability.
Description
technical field [0001] The invention belongs to the technical field of program-controlled multi-range acquisition circuits, and in particular relates to a program-controlled multi-range acquisition circuit. Background technique [0002] With the rapid development of information technology, there are more and more varieties of analog signal sources on the industrial site, which brings great challenges to the adaptability of the acquisition system. The traditional signal acquisition unit must consider the types and characteristics of future external signal sources when designing the system, and once the system design is completed, the external signal can only be changed to adapt to the performance indicators of the acquisition equipment. Therefore, in the design process of acquisition equipment, the compatibility of external signals is an important aspect of its design. Contents of the invention [0003] The purpose of the present invention is to solve the above-mentioned t...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R15/09
CPCG01R15/09
Inventor 高臣郑雍
Owner TIANJIN EMBEDTEC