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Synchronous triggering system in distributed type measurement

A synchronous triggering and distributed technology, applied in the field of signal detection, can solve the problems of low synchronization accuracy, large wiring workload, limited application scope, etc., and achieve the effect of ingenious design and reasonable structure.

Inactive Publication Date: 2013-04-17
ZHONGBEI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a synchronous trigger system in distributed measurement in order to solve the problems of the existing synchronous trigger system with complex circuits, heavy wiring workload, poor flexibility in measuring node layout, low synchronization accuracy, and limited application range.

Method used

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  • Synchronous triggering system in distributed type measurement
  • Synchronous triggering system in distributed type measurement
  • Synchronous triggering system in distributed type measurement

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Embodiment Construction

[0012] Synchronous trigger system in distributed measurement, including S / V signal conversion circuit 1, digital control current switch 2, current loop 3, inductive trigger module 4, and distributed measurement node 5; signal output of S / V signal conversion circuit 1 connected to the signal input end of the numerically controlled current switch 2; the numerically controlled current switch 2 and the inductive trigger module 4 are connected in series to the current loop 3; the signal output end of the inductive trigger module 4 is connected to the trigger signal input end of the distributed measurement node 5 connect;

[0013] The S / V signal conversion circuit 1 includes a photodiode D1, an operational amplifier T1, and first-second resistors R1-R2; the digitally controlled current switch 2 includes a solid-state relay K1, a battery B1, and a third resistor R3; The positive input terminal of the amplifier T1 and the positive pole of the photodiode D1 are both grounded; the negat...

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Abstract

The invention relates to a signal detection technology, in particular to a synchronous triggering system in distributed type measurement. The synchronous triggering system solves the problems of complex circuit, large wire-distributing workload, poor flexibility of measuring-node distribution, low synchronization accuracy and limited application range in the existing synchronous triggering system. The synchronous triggering system comprises an S / V signal conversion circuit, a numerical control current switch, a current loop, an induction triggering module and distributed type measuring nodes, wherein the signal output end of the S / V signal conversion circuit is connected with the signal input end of the numerical control current switch; the numerical control current switch and the induction triggering module are respectively connected on the current loop in series; and the signal output end of the induction triggering module is connected with the triggering signal input ends of the distributed type measuring nodes. The synchronous triggering system is applicable to transient signal measurement.

Description

technical field [0001] The invention relates to signal detection technology, in particular to a synchronous trigger system in distributed measurement. Background technique [0002] The distributed measurement system is usually composed of multiple independent distributed measurement nodes, and the location of each distributed measurement node is flexible, so it is especially suitable for transient signal measurement in the field (such as transient pressure measurement, transient temperature measurement, Transient vibration measurement, etc.). In the process of transient signal measurement using a distributed measurement system, the time when the signal arrives at each distributed measurement node is often different, and the time difference of the signal arriving at each distributed measurement node can be used to analyze the propagation characteristics and field distribution characteristics of the signal. However, in the existing distributed measurement system, multiple dis...

Claims

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Application Information

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IPC IPC(8): H03K17/90H03K17/945
Inventor 王文廉王玉赖富文张志杰
Owner ZHONGBEI UNIV
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