Signal analyzer and device and processing method

A signal analyzer and digital signal processing technology, applied in the direction of measuring devices, instruments, measuring electronics, etc., can solve the problems of inability to analyze signals in real time and on-line analysis, and low measurement accuracy

Active Publication Date: 2015-10-21
杭州亿恒科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention provides a signal analyzer, device and processing method to solve the problems that the meas

Method used

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  • Signal analyzer and device and processing method
  • Signal analyzer and device and processing method
  • Signal analyzer and device and processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] This example is a digital signal device such as figure 1 , 2, 3, the device includes a digital signal processing unit 101, when the digital signal is input, determine the corresponding threshold value of the input digital signal, and convert the input digital signal level to the level of the central processing unit according to the determined corresponding threshold value required level, the digital signal processing unit 101 includes an automatic matching module 104, which is used to identify threshold values ​​of digital signals of different amplitudes, and converts the input digital signal to a TTL level, which includes a first protection circuit 105, a first filter Circuit 106, signal shaping circuit 107 and digital-to-analog conversion circuit 108, the first protection circuit 105 is used to carry out overvoltage protection and electrostatic protection to the input signal, the first filter circuit 106 is used to filter the high-frequency interference in the input s...

Embodiment 2

[0039] This example is an analog signal device such as figure 1 , 2 , 4, and 5, including an analog signal processing unit 102, which is used for inputting the analog signal after the analog signal processing unit manually selects the corresponding coupling mode of the input analog signal according to the determined corresponding coupling mode. To amplify the voltage required for analog-to-digital conversion, the analog signal processing unit 102 includes a signal conditioning module 110, which is used to collect and condition analog signals, and output to the analog-to-digital conversion module, which includes a second protection circuit 111, a second filter circuit 112, a coupling The mode selection circuit 113 and the gain adjustment circuit 114, the second protection circuit 111 is used for overvoltage protection and electrostatic protection of the input signal, the second filter circuit is used for filtering high-frequency interference in the input signal, and the couplin...

Embodiment 3

[0044] This example is a signal analyzer such as figure 1 , 2 , 3, 4, and 5, including a digital signal processing unit 101, used to determine the corresponding threshold value of the input digital signal when the digital signal is input, and convert the input digital signal level to The level required by the central processing unit, the digital signal processing unit 101 includes an automatic matching module 104, which is used to identify the threshold value of digital signals of different amplitudes, and converts the input digital signal to TTL level, which includes a first protection circuit 105 , a first filter circuit 106, a signal shaping circuit 107 and a digital-to-analog conversion circuit 108, the first protection circuit 105 is used for overvoltage protection and electrostatic protection of the input signal, and the first filter circuit 106 is used for filtering the high frequency in the input signal Interference, the signal shaping circuit 107 is used to compare t...

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PUM

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Abstract

The invention belongs to the field of electrical property test, and particularly relates to a signal analyzer and device and a processing method. The signal analyzer comprises a digital signal processing unit, an analog signal processing unit and a central processing unit. The digital signal processing unit is used for confirming the corresponding threshold value of an inputted digital signal when the digital signal is inputted and converting level of the inputted digital signal into a level signal required by the central processing unit according to the confirmed corresponding threshold value. The analog signal processing unit is used for manually selecting the corresponding coupling mode of an inputted analog signal when the analog signal is inputted and then amplifying the inputted analog signal into voltage required by analog-to-digital conversion according to the confirmed corresponding coupling mode. The signal analyzer has the beneficial effects of being high in measurement precision, high in sampling rate, high in operation speed and high in signal analysis capability.

Description

technical field [0001] The invention belongs to the field of testing electrical properties, and in particular relates to a signal analyzer, a device and a processing method. Background technique [0002] A sensor is a detection device that senses the object to be measured and converts it into an electrical signal. There are many types of sensors, which can be divided into acceleration sensors, displacement sensors, speed sensors, speed sensors, and pressure sensors. Sensor output There are also various signals. The types of output signals include analog signals and digital signals, and the output amplitudes are also large and small. When using sensors, it is necessary to equip corresponding sensor signal conditioning modules. In the actual control system, different types of sensors are required. If each One sensor is equipped with one signal conditioning module, which will increase the complexity of the system. Therefore, the signal collection of large-scale control systems ...

Claims

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Application Information

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IPC IPC(8): G01R31/00
Inventor 贺惠农陈斌赵玉刚
Owner 杭州亿恒科技有限公司
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