A device for gravimetric dilution of a sample in a container with a predetermined quantity of liquid. The device includes a support for receiving the container defining a volume able to receive the container in an open position and an injector configured to inject the liquid into the container when the container is received by the support. The injector has an injection axis. The injector and the support are configured in such a way that during an injection of the liquid in the container, the injection axis is directed towards a chosen side edge of the container, in such a way that the liquid is spilt substantially over the side edge of the container.

Apparatus is described comprising a chamber (101), which further comprises an interior (130), a sensor (102), a fluid dispenser (103) and a controller (104). A 3D printed object can be disposed in the chamber (101). The sensor (102) is arranged to weigh the chamber (101) or the whole contents of the chamber (101). The fluid dispenser (103) is arranged to dispense fluid into the interior (130) of the chamber (101) and the controller (104) can determine the weight of the 3D printed object and control the fluid dispenser (103). A system and a non-transitory machine-readable storage medium encoded with instructions executable by a processor.

Apparatus is described comprising a chamber (101), which further comprises an interior (130), a sensor (102), a fluid dispenser (103) and a controller (104). A 3D printed object can be disposed in the chamber (101). The sensor (102) is arranged to weigh the chamber (101) or the whole contents of the chamber (101). The fluid dispenser (103) is arranged to dispense fluid into the interior (130) of the chamber (101) and the controller (104) can determine the weight of the 3D printed object and control the fluid dispenser (103). A system and a non-transitory machine-readable storage medium encoded with instructions executable by a processor.

A system for processing a pavement reinstatement includes a weighing apparatus (502) for measuring a mass of reinstatement material. A reinstatement apparatus (10) is adapted to receive reinstatement dimension information and reinstatement material information and adapted to determine a required reinstatement material mass, and to provide a target air voids content of the reinstatement. The reinstatement apparatus is optionally adapted to receive an indication of the mass measured by the weighing apparatus and the indication is a verification of the weighing apparatus having measured the required mass.

A system for processing a pavement reinstatement includes a weighing apparatus (502) for measuring a mass of reinstatement material. A reinstatement apparatus (10) is adapted to receive reinstatement dimension information and reinstatement material information and adapted to determine a required reinstatement material mass, and to provide a target air voids content of the reinstatement. The reinstatement apparatus is optionally adapted to receive an indication of the mass measured by the weighing apparatus and the indication is a verification of the weighing apparatus having measured the required mass.

A three-dimensional printing system to print three-dimensional objects and a method of printed are disclosed. The system includes a printing apparatus to print three-dimensional objects and a controller to receive data from a material supply source and to control said printing apparatus.

A three-dimensional printing system to print three-dimensional objects and a method of printed are disclosed. The system includes a printing apparatus to print three-dimensional objects and a controller to receive data from a material supply source and to control said printing apparatus.

A sensor assembly for determining the level of oil in a filter pan is disclosed herein. The assembly includes a load cell for sensing the amount of oil in the filter pan. The filter pan is pivotable about an end of the pan within a frame for supporting cooking equipment. The load cell is attached on one end to the frame. The assembly also includes a lever pivotable about a fulcrum, such that the first end of the lever supports the other end of the oil filter pan, and the second end of the lever urges against the load cell.

A droplet dispensing apparatus includes a crystal sensor, a resonance frequency measuring unit, and a controller. The controller is configured to obtain the resonance frequency of the crystal sensor before droplets are discharged from a liquid dropping device, control the liquid dropping device to discharge droplets on to the crystal sensor, and obtain the resonance frequency of the crystal sensor after droplets are discharged from the liquid dropping device. The controller estimates a volatilization amount for the droplets on the crystal sensor based on a temporal change trend in the resonance frequency of the crystal sensor and calculates the total weight of the droplets discharged from the liquid dropping device based on the difference in resonance frequency of the crystal sensor before and after the droplets are discharged and the estimated volatilization amount.

A droplet dispensing apparatus includes a crystal sensor, a resonance frequency measuring unit, and a controller. The controller is configured to obtain the resonance frequency of the crystal sensor before droplets are discharged from a liquid dropping device, control the liquid dropping device to discharge droplets on to the crystal sensor, and obtain the resonance frequency of the crystal sensor after droplets are discharged from the liquid dropping device. The controller estimates a volatilization amount for the droplets on the crystal sensor based on a temporal change trend in the resonance frequency of the crystal sensor and calculates the total weight of the droplets discharged from the liquid dropping device based on the difference in resonance frequency of the crystal sensor before and after the droplets are discharged and the estimated volatilization amount.