Pulse delay width modulation circuit for mass spectrum

Abstract

The invention belongs to the technical field of mass spectrometers, and specifically provides a pulse delay width modulation circuit for mass spectrum. The invention firstly provides a signal processing circuit, which comprises a shaping module used for receiving a signal to be processed with waveform distortion and reducing a square pulse shape of the signal to be processed; a pulse width adjusting module, which is connected with the shaping module and used for carrying out pulse width extension on signals output by the shaping module; and a delay module, which is connected with the pulse width adjusting module, and is used for carrying out pulse time delay on the signals output by the pulse width adjusting module and outputting the signals. The pulse delay width modulation circuit for the mass spectrum provided by the invention comprises the signal processing circuit, which can effectively realize waveform reduction, pulse width extension and pulse time delay of the signals, so thatall circuit parts of a mass spectrometer control process can be ensured to receive trigger signals synchronously.

Description

technical field [0001] The invention belongs to the technical field of mass spectrometers, and in particular relates to a pulse delay width modulation circuit for mass spectrometry. Background technique [0002] In the control process of mass spectrometry instruments, trigger control needs to be strictly synchronized. However, during the transmission of the trigger signal, due to the characteristics of the line itself, the waveform of the trigger signal will change during the transmission. Due to the different lengths of wires that transmit the trigger signal to each part, different delays will occur in the signals received by each part. In order to trigger other circuits correctly and synchronously, the reshaping, pulse width adjustment, and delay adjustment of the trigger signal at the signal receiving end become an essential circuit part of the mass spectrometer. [0003] However, the existing technical solutions cannot realize the shaping, delay, and pulse width adjust...

AI Technical Summary

Problems solved by technology

[0003] However, the existing technical solutions cannot achieve the shaping, delay, and pulse width adjustment of the aperiodic distorted pulse signal at the same time, and the mass spectrometer cannot achieve strict synchronous trigger control during the control process.

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