High-precision self-calibration synchronous triggering device and method

Abstract

The invention relates to a synchronous triggering device, in particular to a high-precision self-calibration synchronous triggering device and a high-precision self-calibration synchronous triggering method, and solves the technical problems that a synchronous triggering device for large-scale data acquisition in an existing large-scale pulse power device is low in precision, slow in leading edge and difficult to calibrate. The high-precision self-calibration synchronous triggering device comprises a preprocessing circuit, a fan-out circuit, a reference channel, n calibration channels, a logic OR circuit, a calibration enabling circuit and a calibration signal circuit, wherein n is greater than or equal to 2; the output end of the preprocessing circuit is connected with the input end of the fan-out circuit; the reference channel and the n calibration channels are connected in parallel at the output end of the fan-out circuit; the reference channel comprises a reference time delay circuit and a reference driving circuit which are connected in sequence; each calibration channel comprises a calibration delay circuit, a calibration drive circuit, a comparison circuit and a delay drive circuit; the invention further provides a high-precision self-calibration synchronous triggering method based on the high-precision self-calibration synchronous triggering device.

Description

technical field [0001] The invention relates to a synchronous trigger device, in particular to a high-precision self-calibration synchronous trigger device and a realization method based on the high-precision self-calibration synchronous trigger device. Background technique [0002] With the rapid development of pulse power technology in recent years, pulse power devices show the characteristics of high power, large devices and multiple parallel operation; "Julong No. 1" developed by China Academy of Engineering Physics uses an oscilloscope to build a 300-channel data acquisition system ; When a large-scale oscilloscope system is used for data acquisition, all oscilloscopes must be triggered at the same time to ensure that all data have the same zero time. [0003] There are two ways to implement the existing synchronous trigger device. One is to use commercial devices to build. For example, Hermes III in the United States uses DG535+DG645+ power splitter to complete the tri...

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Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problems of low precision, slow leading edge and difficult calibration in the synchronous trigger device for large-scale data acquisition in the existing large-scale pulse power device, and provide a high-precision self-calibration synchronous trigger device and method to realize large-scale The synchronous trigger device of pulse power has high precision, fast leading edge and self-calibration function, which meets the batch data acquisition requirements of large pulse power devices

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