Determining a volume of a tank

A tape measure assembly configured to measure an object, the tape measure assembly comprising:

• a holder sub-assembly comprising:
• a first enclosure;
• a first wheel coupled to the first enclosure;
• and
• a first magnet positioned in the holder sub-assembly;
• a side attachment sub-assembly, the side attachment sub-assembly comprising;
• a second enclosure;
• a second wheel coupled to the second enclosure;
• and
• a second magnet positioned in the side attachment sub-assembly;
• a measuring tape comprising:
• a first end coupled to the first enclosure of the holder sub-assembly;
• and
• a second end coupled to the second enclosure of the side attachment sub-assembly;
• and
• a controller operatively coupled to the holder sub-assembly, the measuring tape, and the side attachment sub-assembly, the controller configured to perform operations comprising:
• measuring a plurality of dimensions of the object;
• and
• based on values of the plurality of dimensions, calculating a volume of the object.

A method for determining a volume of a tank, the method comprising:

• attaching a wire spool sub-assembly to a first circumference at a first location of the tank, the wire spool sub-assembly comprising:
• a first plurality of magnetic wheels;
• and
• a plurality of wires, a first end of the plurality of wires coupled to a spool of wire spool sub-assembly;
• extending a wire end sub-assembly comprising a third plurality of magnetic wheels, about the first circumference of the tank, the wire end sub-assembly, coupled to a terminating end of the plurality of wires;
• attaching a plurality of wire guide sub-assemblies to the tank about the plurality of wires by a second plurality of magnetic wheels;
• deploying a roller tape measure sub-assembly along the plurality of wires;
• measuring the first circumference at the first location of the tank with the roller tape measure sub-assembly;
• recording a value of the first circumference at the first location of the tank with the roller tape measure sub-assembly;
• moving the wire spool sub-assembly, the wire guide sub-assembly, the wire end sub-assembly, and the roller tape measure sub-assembly from the first circumference of the first location of the tank to a second circumference of a second location of the tank, the second location different than the first location;
• measuring the second circumference at the second location of the tank with the roller tape measure sub-assembly;
• recording a value of the second circumference at the second location of the tank;
• and
• based on the value of the first circumference and the value of the second circumference, calculating the volume of the tank.

A tape measure assembly configured to measure a tank, the tape measure assembly comprising:

• a wire spool sub-assembly comprising:
• a plurality of wires extendable from wire spool sub-assembly around a circumference of the tank;
• and
• a first plurality of magnetic wheels coupled to the wire spool sub-assembly;
• a plurality of wire guide sub-assemblies, each wire guide sub-assembly of the plurality of wire guide sub-assemblies comprising:
• a u-shaped body positioned about and coupled to the plurality of wires;
• and
• a second plurality of magnetic wheels coupled to the u-shaped body;
• a wire end sub-assembly coupled to a terminating end of the plurality of wires, the wire end sub-assembly comprising a third plurality of magnetic wheels;
• a roller tape measure sub-assembly coupled to the plurality of wires and movable along the plurality of wires;
• and
• a controller operably coupled to the wire spool sub-assembly, the plurality of wire guide sub-assemblies, the wire end sub-assembly, and the roller tape measure sub-assembly.