关于AML超高真空步进电机的定制/修改概述

AML的超高真空步进电机是可以定制的。有常规的标准选项，有定制选项，有特定环境的选项，以及由最终用户设计的修改选项。这篇文章将概述AML超高真空步进电机的修改。

Option C:

Option C is the cryogenic version of the standard motor. This extends the operational temperature range from -196 °C to +190 °C. This is achieved by replacing the standard bearings lubricated with NyeTorr® 6300 UHV low outgassing grease with dry lubricated (tungsten disulfide) hybrid silicon nitride ceramic bearings. This is suitable for cryogenic and low temperature environments where the standard minimum operating temperature of -65 °C will be exceeded.

Option H:

Option H is the dry lubricated version of the standard motor. The changes made to the motor are identical to option C where the standard bearings are replaced with dry lubricated (tungsten disulfide) hybrid silicon nitride ceramic bearings. This option is suitable for low duty cycle applications where UHV grease is not permitted. Note that the life expectancy of dry lubricated bearings may be significantly shorter than bearings lubricated with the standard NyeTorr® UHV grease, depending on the application.

Option P:

Option P is for the inclusion of an embedded PT100 RTD sensor in leiu of the standard K-type thermocouple. A temperature sensor is included in all AML motors as temperature monitoring is critical to prevent the possible irreversible deterioration of the motor winding insulation when operating in UHV environments. For applications where a thermocouple feedthrough is not available and chamber wall temperatures may create significant thermocouple errors, then the PT100 sensor is a more accurate and reliable temperature sensor.

Option R:

Option R is the radiation hardened version of the standard motor. Radiation hardened motors are suitable for a total dose of 1E6 Gy of gamma radiation. This is a conservative figure based on the published radiation compatibility of the materials used. Radiation hardening is achieved with the removal of PTFE content in the motor. Firstly, the standard bearings lubricated with NyeTorr® 6300 UHV low outgassing grease are replaced with dry lubricated (tungsten disulfide) hybrid silicon nitride ceramic bearings. In addition, the standard polyimide wrapped motor phase leadout wire is replaced with our KW5 polyimide enamelled wire.

Option X:

Option X is for modification to motor shaft. This option encompasses a variety of modifications to the standard shaft dimensions. Examples include adding features to the shaft such as flats or holes, shortening the shaft, and adding a rear shaft. These are often customer designed modifications that are specific to their application, but AML can design the modification based on your specification requirements. If you require a shaft modification to an AML motor, please contact our sales team and we will assist with the feasibility of your design.

Option M (General Modifications):