Provided herein is an apparatus for determining a vertical density profile of a multi-layered fluid column including at least two different liquids, the apparatus comprising a plurality of measurement modules that form a vertical array of measurement modules; wherein each measurement module comprises: a support arm mounted to the elongate vertical support member and extending outwardly from the elongate vertical support member; a displacer carried on the support arm; and a force measurement device configured to measure a force attributable to a mass of the displacer mediated by a buoyancy of the displacer in the fluid column, wherein the plurality of measurement modules have a data connection to a data processing unit that is configured to process the measurement data from the plurality of measurement modules and generate a level or density profile of the fluid column.

Estimating a fuel consumption includes receiving a request for estimating the fuel consumption between a first time and a second time; estimating a first fuel consumption value in a first time interval using fuel-sender resistance data; estimating a second fuel consumption value in a second time interval using fuel-injected mass data, where the first time interval and the second time interval are consecutive, non-overlapping intervals; and combining at least the first fuel consumption value and the second fuel consumption value to obtain a fuel consumption value.

The instant application pertains to new liquid level monitoring apparatus and a cooling system for computer components that employs the liquid level monitoring apparatus. In one embodiment, the liquid level measurement device comprises a load cell and a buoyancy element. The buoyancy element is configured to be partially submerged in a dielectric liquid. The load cell and the buoyancy element are operably connected such that a change in liquid volume may be determined using Archimedes' principle.

A fluid-level sensor includes a housing, a substrate supported by the housing and defining an arcuate slot completely though a thickness of the substrate, and electrically conductive traces disposed on a backside of the substrate. A wiper assembly is disposed adjacent to a front side of the substrate and includes an arm pivotal relative to the substrate and a wiper attached to the arm. The wiper has an elongate neck extending through the slot and a head attached to the neck and in contact with the traces to close an electric circuit, wherein the wiper is configured to move along the slot and slide across the traces responsive to pivoting of the arm to vary resistance of the electric circuit to output a fluid-level reading.

A device for monitoring a liquid level of a liquid storage tank for a vehicle is capable of improving sensing sensitivity of a liquid level sensor by employing a structure capable of amplifying an electromotive force, which is generated by an electrode, at an electromotive force amplification layer including a carbon micro coil (CMC) and accurately sensing a frozen state of a liquid to perform a heating function so as to resolve the frozen state of the liquid.

Methods and systems are provided for a fuel delivery system and a fuel level sensor assembly thereof. In one example, a fuel level sensor includes a wiper assembly with spring-loaded wiper contacts. Cylindrical springs are provided between a wiper housing and the contacts to bias the wiper contacts into contact with a resistive card.

A universal sensor interface system includes a sensor assembly and an adapter with twist to lock and twist to unlock functionality. The sensor assembly has a sensor interface box and a transducer communicatively connected to the sensor interface box by a cable. The adapter is configured to connect to an access aperture of a container for holding a fluid. The sensor interface box has a first connection interface, and the adapter has a complementary second connection interface. The first connection interface and the second connection interface cooperate to facilitate connection of the sensor assembly to the access aperture of the container and disconnection of the sensor assembly from the access aperture of the container.

The instant application pertains to new liquid level monitoring apparatus and a cooling system for computer components that employs the liquid level monitoring apparatus. In one embodiment, the liquid level measurement device comprises a load cell and a buoyancy element. The buoyancy element is configured to be partially submerged in a dielectric liquid. The load cell and the buoyancy element are operably connected such that a change in liquid volume may be determined using Archimedes' principle.

A fuel supply device has a cover member which is attached to an opening portion of a fuel tank and a pump unit comprising a pump. The cover member and pump unit are connected via a connecting portion where the pump unit is rotatably connected to the connecting portion. Further, the fuel supply device includes a fuel residual amount detection device which is attached to the pump unit and configured to detect the residual amount of fuel. The fuel residual amount detection device includes a gauge main body to which electric wirings are connected, an arm portion which is movably mounted relative to the gauge main body and a float which is attached to a leading end of the arm portion. The float is positioned above a lower terminal end of the base portion when the cover portion is held and lifted while the pump unit rotates with respect to the connecting portion.

A liquid level detection device is provided with a fixed body and a rotating body, and includes a float floating and an arm. The arm has an insertion section to be inserted into the rotating body and an extending section extending linearly and bent with respect to the insertion section. The rotating body has an insertion hole in which the insertion section of the arm is inserted in an insertion direction and a holding section having a receiving opening which receives the extending section and holding the extending section received by the receiving opening. The fixed body has a guide section covering the extending portion in a part of a region between a portion held by the holding section and a portion connected to the float within a rotatable angular range of the arm. The guide section is provided with a passing section used to dispose the part of the extending section inside the guide section.