A method and system for expanding the range of working environments in which a 3-D or depth sensor can operate without damaging or degrading the measurement performance of the sensor are provided. The sensor has a rigid support structure and a plurality of optoelectronic components fixedly supported on the support structure. The system includes an enclosure for enclosing the support structure and the supported optoelectronic components within an interior of the enclosure. A temperature control circuit includes a controller to monitor interior temperature within the enclosure and to regulate temperature within the enclosure to be within an operational temperature range of the sensor based on the monitored temperature.

A high-stability step gauge and a preparation method therefor, where the step gauge has a base body, the base body includes a pillar carrier disposed along a coordinate direction, gauge block mounting blocks are distributed on the pillar carrier, and gauge pieces are fixedly mounted on the gauge block mounting blocks. The high-stability step gauge has good accuracy and stability, a small size, and strong functions. Deformation errors caused by the step gauge due to factors such as a weight of the base body are effectively and prominently reduced by means of reasonable combination of the base body and the gauge block mounting blocks. The preparation method thereof provides a stable length direction low deformation performance by using a cylindrical rigid support as the base body. The sleeved gauge block mounting blocks have high fixed mounting stability, and positioning and assembly of the gauge pieces are accurate.

A method and system for expanding the range of working environments in which a 3-D or depth sensor can operate without damaging or degrading the measurement performance of the sensor are provided. The sensor has a rigid support structure and a plurality of optoelectronic components fixedly supported on the support structure. The system includes an enclosure for enclosing the support structure and the supported optoelectronic components within an interior of the enclosure. A temperature control circuit includes a controller to monitor interior temperature within the enclosure and to regulate temperature within the enclosure to be within an operational temperature range of the sensor based on the monitored temperature.

A high-stability step gauge and a preparation method therefor, where the step gauge has a base body, the base body includes a pillar carrier disposed along a coordinate direction, gauge block mounting blocks are distributed on the pillar carrier, and gauge pieces are fixedly mounted on the gauge block mounting blocks. The high-stability step gauge has good accuracy and stability, a small size, and strong functions. Deformation errors caused by the step gauge due to factors such as a weight of the base body are effectively and prominently reduced by means of reasonable combination of the base body and the gauge block mounting blocks. The preparation method thereof provides a stable length direction low deformation performance by using a cylindrical rigid support as the base body. The sleeved gauge block mounting blocks have high fixed mounting stability, and positioning and assembly of the gauge pieces are accurate.