According to some aspects, techniques for determining a position of a build platform in an additive fabrication device are provided. According to some embodiments, forces resisting separation of the build platform from an opposing surface are measured and a position of the build platform with respect to the opposing surface is determined. In some embodiments, such forces may include fluid forces present during separation of a build platform from an interior surface of a liquid photopolymer container.

A measuring apparatus, method and program with which a distance between two points that are not within one photographing range can be easily measured is provided. According to an embodiment, a representative point is set in an image in which a start point is set, and the coordinates, of the points and characteristic quantity of a neighborhood image is stored. Hereafter in each image until an end point is set, a representative point of the most recent image is searched, the coordinates thereof are stored, a new representative point is set, the coordinates thereof and the characteristic quantity of the neighborhood image are stored, and the coordinates of the end point are stored. A vector between the respective two points connecting the start point, representative points and the end point in the sequence of setting is calculated, and the distance between the start point and the end point is calculated.

A measuring apparatus, method and program with which a distance between two points that are not within one photographing range can be easily measured is provided. According to an embodiment, a representative point is set in an image in which a start point is set, and the coordinates, of the points and characteristic quantity of a neighborhood image is stored. Hereafter in each image until an end point is set, a representative point of the most recent image is searched, the coordinates thereof are stored, a new representative point is set, the coordinates thereof and the characteristic quantity of the neighborhood image are stored, and the coordinates of the end point are stored. A vector between the respective two points connecting the start point, representative points and the end point in the sequence of setting is calculated, and the distance between the start point and the end point is calculated.

A spacer insertion device is disclosed. The spacer insertion device comprises a spacer insertion mechanism fixed on a base body of a core detection device of a coring instrument, wherein the spacer insertion mechanism comprises a slider and a cylinder body, an output end of the cylinder body is connected with the slider, and the slider is slidably connected with the base body to push a spacer to the a core channel provided in the base body and in communication with a core barrel.

A spacer insertion device is disclosed. The spacer insertion device comprises a spacer insertion mechanism fixed on a base body of a core detection device of a coring instrument, wherein the spacer insertion mechanism comprises a slider and a cylinder body, an output end of the cylinder body is connected with the slider, and the slider is slidably connected with the base body to push a spacer to the a core channel provided in the base body and in communication with a core barrel.

A method for determining the length of a line involves determining a length of a first electrical line, determining an identifier of the first electrical line, determining a length of a second electrical line, which is intended for installation in an electrical installation assembly, based on the length of the first electrical line and a starting length determined by means of the identifier.

A method for determining the length of a line involves determining a length of a first electrical line, determining an identifier of the first electrical line, determining a length of a second electrical line, which is intended for installation in an electrical installation assembly, based on the length of the first electrical line and a starting length determined by means of the identifier.

The invention relates to a method for detecting the underflation state of a tire fitted on a vehicle, the method comprising the following steps: the step of determining a first contact patch measurement of a first tire fitted on the vehicle, the step of determining a second contact patch measurement of a second tire fitted on the vehicle, the step of comparing the first and second contact patch measurements and of inferring an underinflation situation therefrom if the difference between the two measurements is greater than a predetermined signalling threshold.

The invention relates to a method for detecting the underflation state of a tire fitted on a vehicle, the method comprising the following steps: the step of determining a first contact patch measurement of a first tire fitted on the vehicle, the step of determining a second contact patch measurement of a second tire fitted on the vehicle, the step of comparing the first and second contact patch measurements and of inferring an underinflation situation therefrom if the difference between the two measurements is greater than a predetermined signalling threshold.

1. Method for controlling a flying body for cleaning surfaces

2.1. Flying bodies can cover large distances between arrangements of smooth and curved surfaces without requiring manual manipulation. This reduces personnel requirements and enables large surfaces to be maintained, for example solar power stations, in a fully automated manner.

2.2. The method for controlling a flying body for cleaning surfaces consists of detecting the surrounding surfaces of an object to be cleaned, directing the flying body with respect thereto and structuring the flight path. As a result, the surface can be cleaned particularly efficiently and, if needed, worked on further.

2.3. Said method for controlling a flying object for cleaning surfaces is suitable for use on glass facades or on solar power stations, particularly in arid regions.