Mass spectrometer high-frequency high-voltage power supply system

Abstract

The invention discloses a mass spectrometer high-frequency high-voltage power supply system which comprises a signal source generation module, a driving amplification module, a feedback module and a load, wherein the signal source generation module provides required frequency for the high-frequency high-voltage power supply system; the driving amplification module amplifies the initial signal and adds the initial signal to the load; and the feedback module monitors a voltage signal on the load in real time and outputs the voltage signal to an analog-to-digital converter of the signal source generation module to form a closed loop so as to realize feedback control and stable output voltage. The system has the beneficial effects that the circuit is composed of only three modules, the structure is simple, the debugging is convenient, the hardware cost is reduced, the whole system is small in size, a low-voltage power supply mode is adopted, power consumption is greatly reduced, and the requirement of a radio frequency power supply system in a miniaturized mass spectrometer is met.

Description

technical field [0001] The invention relates to the field of mass spectrometers, in particular to a high-frequency and high-voltage power supply system for mass spectrometers. Background technique [0002] Ion trap mass spectrometry is an extremely important and widely used mass spectrometry method. It is an instrument that separates according to the mass-to-charge ratio (m / z) and detects its intensity for qualitative and quantitative analysis. Now mass spectrometers have become a must for many industries. Instruments are playing an increasingly important role in many hot areas. In the ion detector system in the mass spectrometer, the high-voltage and high-frequency power supply system is the core driving component. The power supply frequency is fixed during operation. In mass spectrometry analysis, the radio frequency amplitude scanning technology is usually used. According to the Matthew equation of the ion trap , when performing mass instability scanning, as the scanning...

AI Technical Summary

Problems solved by technology

[0006] At present, the mass spectrometer RF power supply system developed in China has high requirements for power supply. Even if the power supply is low, its voltage scanning range is limited.

At the same time, there are disadvantages of complex circuit and high power requirement

At the same time, the current mass spectrometers have the disadvantages of large volume, high cost, high use and maintenance costs, etc. These defects limit the further promotion of mass spectrometers, especially their application in terms of timeliness and convenience. Meet a variety of operating environments

Images