Automatic pipetting module

In the modern laboratory environment that pursues efficiency, precision and automation, automatic pipetting modules have become an indispensable assistant for scientific researchers with their excellent performance and wide range of application fields. As a cutting-edge device that integrates precision machinery, electronic control, and sensor technology, the automatic pipetting module not only greatly improves the efficiency and accuracy of liquid handling, but also provides experimental research in multiple disciplines such as biology, chemistry, and pharmaceuticals. Strong technical support.

1. The components and functions of the automatic pipetting module: 1. Pipetting arm: The pipetting arm is the key component in the automatic pipetting module responsible for moving and positioning the pipetting head. It is usually made of high-strength, high-precision materials to ensure stability and accuracy during movement. The pipetting arm can accurately move in three-dimensional space according to the instructions of the control system, and position the pipetting head to the specified position. 2. Pipetting head: The pipetting head is the core component for performing liquid suction and discharge operations. It is often designed with special materials and structures to ensure high precision and consistency when sucking and discharging liquids. The interior of the pipetting head may contain a piston, syringe, or other type of liquid transfer mechanism for precise control of liquids. 3. Control system: The control system is the brain of the automatic pipetting module. It is responsible for receiving instructions and parameters input by the user and converting them into movement instructions for the robotic arm and pipetting head. The control system usually has powerful data processing and logical judgment capabilities, and can monitor various parameters during the pipetting process (such as pipetting volume, pipetting speed, pipetting path, etc.) in real time, and make adjustments as needed. At the same time, it also supports a variety of pipetting modes and program settings to meet the needs of different experiments. 4. Driving device: The driving device is the power source of the automatic pipetting module and is responsible for providing necessary power support for the pipetting arm and pipetting head. The driving device usually includes a motor, a reducer, a transmission mechanism and other parts, which work together to convert electrical energy into mechanical energy and drive the pipetting arm and pipetting head to perform precise movements.

2. Working principle of the automatic pipetting module 1. Control system instructions (1) The user sets the pipetting program and parameters through the controller or computer software, including pipetting volume, pipetting speed, pipetting path, etc. (2) The control system receives these instructions and converts them into movement instructions for the robotic arm and pipetting head. 2. Movement of the robotic arm and pipetting head (1) The robotic arm performs precise three-dimensional movement according to the instructions of the control system, including movement in the horizontal (X-axis, Y-axis) and vertical (Z-axis) directions. (2) The pipetting head is installed at the end of the robotic arm and moves to the designated position with the movement of the robotic arm. 3. Liquid suction and discharge (1) The pipetting head usually adopts the principles of air displacement or piston type to absorb and discharge liquid. Air displacement type: By controlling changes in air pressure, negative or positive pressure is generated inside the pipetting head, thereby sucking in or discharging liquid. Piston type: Through the up and down movement of the piston, the volume changes inside the pipetting head to achieve the suction and discharge of liquid. (2) When sucking liquid, the pipetting head will accurately move above the liquid surface and adjust the sucking depth according to the preset pipetting volume. Then, by controlling air pressure or piston movement, the liquid is sucked into the pipetting head. (3) When discharging liquid, the pipetting head will move above the target container and slowly release the liquid to ensure that the liquid is transferred to the target container accurately and without residue. 4. Sensor monitoring and feedback (1) During the entire pipetting process, the sensor will monitor the volume, position of the liquid, and the movement status of the pipetting head in real time. (2) If an abnormality occurs (such as inaccurate pipetting volume, clogged pipetting head, etc.), the sensor will immediately send a feedback signal to the control system. (3) The control system makes corresponding adjustments or alarm processing based on the feedback signal to ensure the accuracy and stability of the pipetting operation. 5. Automation and intelligence (1) Modern automatic pipetting modules usually have the characteristics of automation and intelligence. (2) They can automatically complete complex pipetting procedures without manual intervention. (3) They also support a variety of pipetting modes and program settings, which users can select and adjust according to actual needs. (4) Some high-end automatic pipetting modules also have data recording and analysis functions, which can provide users with detailed experimental reports and data analysis results.

With the continuous advancement of science and technology and the growing demand for laboratory automation, the importance of automatic pipetting modules, as a leader in the field of liquid handling, has become increasingly prominent. It not only simplifies the complex experimental process and improves the efficiency of scientific research work, but also provides a solid guarantee for the accuracy and repeatability of experimental results.