The most commonly used diamond anvil press, or DAC for short, is widely recognized among high-pressure beginners and long-term users due to its small size, high ultimate pressure, and relatively complete application environment (magnetic field, temperature, shear, etc.). But even independent high-pressure tests are subject to the superposition of many factors, such as the pressurization method adopted by the operator, the inclination of the gasket, the flatness of the cushion block, and the stress release of the anvil Our factory has been committed to improving the convenient and efficient use of DAC in multiple directions. DAC has always maintained the traditional screw press method, which we call 'Screw Press'. This most direct pressurization method requires high technical skills from the operator, especially in scenarios where consistency in repeated experiments and stability in the depressurization process are important. To avoid excessive human intervention, indirect pressurization and depressurization methods can be adopted. For example, commonly used methods in current experiments include gas film pressurization, small chamber oil pump pressurization, Gearbox pressurization, and piezoelectric ceramic driven pressurization. The purpose of participating in these methods is to achieve controllable movement between the piston and cylinder of the DAC, so as to make the pressurization and depressurization process tend towards an idealized and consistent operating state.
Automatic (manual) in-situ pressure control device for gas film: By using a gas controller to regulate the internal pressure of gas film sheets of different shapes, different deformation amounts of the gas film are generated, ultimately achieving precise electric pressure control, thus making the pressurization and depressurization process tend towards an idealized and consistent operating state.
From the form of gas film, it can be divided into single film pressure control, dual film pressure control, and integrated single film compressor. This in-situ pressure control form of gas film is suitable for various working conditions such as high temperature, room temperature, and low temperature, and is compatible with remote control. The device adopts a minimalist disassembly concept in design, which facilitates maintenance and user replacement of the press machine for adaptation.
Commonly used electric pressure control hosts - single channel PACE5000, dual channel PACE6000.
Pressure control module - PACE CM0, controller stability of 0.005% fs, module and host separated for easy disassembly and maintenance.
Common assembly forms of gas film connection lines:
*The gas source end of the gas cylinder is generally connected to the controller through a 1/16 or 1/8 high-pressure pipeline.
Ø Gas film upper computer control software form:
