Automatic Calibration Device for Ion Mobility Spectrometer
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Solution Overview
Problem
Conventional ion migration spectrometers require frequent addition of volatile calibration materials, leading to time-consuming storage and rapid consumption, which affects detection efficiency due to the need for large amounts and labor-intensive cleaning.
Innovation Solution
An automatic calibration device with a reservoir and an automatic transfer portion using a piston and eccentric mechanism for precise, continuous, and controlled injection of a fixed quantity of liquid calibration sample, reducing the need for frequent additions and improving portability and accuracy.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large amount of calibration material is added to the conventional calibration device, then the calibration function can be achieved, but the calibration material is consumed quickly and cleaning time increases
Solution Approach 1:
The calibration device is divided into multiple storage bottles (first storage bottle, second storage bottle) that can be independently filled and used. This segmentation allows one bottle to be used while another is being prepared or cleaned, reducing the frequency and time of cleaning operations.
Solution Approach 2:
The device includes a filling device that can pre-fill storage bottles with calibration material. By performing the filling action in advance, the device reduces the frequency of manual intervention and cleaning, as pre-filled bottles can be stored and used later without immediate cleaning requirements.
2Reliability
If volatile calibration material is stored in conventional devices, then calibration can be performed, but storage becomes time-and-labor-consuming and inconvenient
Solution Approach 1:
The filling device automatically fills the storage bottles with calibration material through a automated process involving injection needles and pressure control. This self-service mechanism eliminates manual handling of volatile materials, making storage convenient and reducing labor requirements while maintaining calibration reliability.
Solution Approach 2:
The device uses an intermediate filling mechanism with sealed connections and controlled transfer pathways to move calibration material from the filling device to storage bottles. This intermediary system protects against direct exposure to volatile materials, improving ease of operation while ensuring reliable calibration function.
3Device complexity
If manual calibration material addition is used, then the device structure remains simple, but detection efficiency is affected due to frequent intervention
Solution Approach 1:
The device implements periodic automatic filling operations where storage bottles are refilled at predetermined intervals or when material levels are low. This periodic automated action maintains simple device structure while eliminating frequent manual interventions, thereby improving detection efficiency.
Solution Approach 2:
The filling device incorporates feedback mechanisms that monitor the calibration material levels in storage bottles and automatically initiate refilling when needed. This feedback-based automation maintains structural simplicity while ensuring continuous operation without manual intervention, improving detection efficiency.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The device allows for high-accuracy, convenient, and efficient calibration with reduced sample loss and extended usage periods, enhancing the detection process by automating the calibration sample transfer and injection process.
Implementation Method 1
a piston configured, within the piston conduit, to reciprocate right and left so as to output a certain amount of liquid calibration sample in the piston conduit that is transferred from the reservoir
Implementation Method 2
a first eccentric configured to abut against a stop plate that is connected with the piston so as to push, by its rotation, the stop plate and in turn the piston to move in a radial direction of the first eccentric wheel
Data Source
AI summary
Embodiments of the present disclosure provide an automatic calibration device for an ion migration spectrometer and an ion migration spectrometer. The automatic calibration device includes: a reservoir configured to store liquid calibration sample therein; and an automatic transfer portion communicated with the reservoir and configured to transfer the liquid calibration sample in the reservoir.