A system includes a flow sensor contained within a flow sensor housing, a base, and a seal. The base houses a controller that generates at least one operation modification signal, and the flow sensor is separable from and mountable onto the base. A bottom surface of the flow sensor housing includes the seal. The seal forms a liquid-tight engagement between the flow sensor housing and the base when the flow sensor is mounted onto the base.

An airflow sensor includes a sensing circuit module having a circuit board and a sensing component, a first sealing piece and a second sealing piece. The first sealing piece is disposed to cover at least a part of a first surface of the circuit board. The second sealing piece is disposed to cover at least a part of a second surface opposite to the first surface. A first accommodating cavity is formed between the first sealing piece and the circuit board. The sensing component is received in the first accommodating cavity. The first sealing piece includes a first waterproof air-permeable portion. A connecting soldering pad electrically connected with the sensing component is disposed at the circuit board. The airflow sensor is electrically connected with other circuitry components through the connecting soldering pad. The connecting soldering pad is not covered by either the first sealing piece or the second sealing piece.

An airflow sensor includes a sensing circuit module having a circuit board and a sensing component, a first sealing piece and a second sealing piece. The first sealing piece is disposed to cover at least a part of a first surface of the circuit board. The second sealing piece is disposed to cover at least a part of a second surface opposite to the first surface. A first accommodating cavity is formed between the first sealing piece and the circuit board. The sensing component is received in the first accommodating cavity. The first sealing piece includes a first waterproof air-permeable portion. A connecting soldering pad electrically connected with the sensing component is disposed at the circuit board. The airflow sensor is electrically connected with other circuitry components through the connecting soldering pad. The connecting soldering pad is not covered by either the first sealing piece or the second sealing piece.

A system for monitoring and verifying a delivery process during which a fluid is delivered, via a bunker line, from a supplying marine vessel to a receiving marine vessel is disclosed. A data capture device comprises a measurement apparatus configured to measure one or more parameters related to the delivery process, such as a mass flow rate of the fluid through the bunker line or a density or a temperature of the fluid. A measurement apparatus being configured to generate an electronic record that can be stored in a memory. The system further includes a private network to provide a point-to-point wireless link between the supplying marine vessel and the receiving marine vessel. The client device is configured to generate a dashboard configured to present the electronic record to the first and second users and to accept an electronic signature of each of the first and second users.

A system for monitoring and verifying a delivery process during which a fluid is delivered, via a bunker line, from a supplying marine vessel to a receiving marine vessel is disclosed. A data capture device comprises a measurement apparatus configured to measure one or more parameters related to the delivery process, such as a mass flow rate of the fluid through the bunker line or a density or a temperature of the fluid. A measurement apparatus being configured to generate an electronic record that can be stored in a memory. The system further includes a private network to provide a point-to-point wireless link between the supplying marine vessel and the receiving marine vessel. The client device is configured to generate a dashboard configured to present the electronic record to the first and second users and to accept an electronic signature of each of the first and second users.

A flowmeter for gaseous fluid includes a conduit composed of non-electrically conductive material for passage of an ionized flow of the gaseous fluid therethrough. The flowmeter further includes an electromagnetic sensor arranged to measure a magnetic field generated about the conduit by the passage of the ionized flow and generate a signal proportional to the magnetic field.

A printed circuit board device includes: a first capacitive sensor configured to measure a first capacitance within a contained volume having known dimensions, wherein the first capacitance changes as a substance is received into the contained volume; a second capacitive sensor having a plurality of trigger points at a plurality of corresponding known heights within the contained volume, the second capacitive sensor configured to detect when the substance received into the contained volume has reached each of the corresponding known heights within the contained volume; and wherein at least one of a level of the substance within the contained volume, a volume of the substance within the contained volume, or a flow rate of the substance into the contained volume is determined based on data from the first capacitive sensor and the second capacitive sensor.

A printed circuit board device includes: a first capacitive sensor configured to measure a first capacitance within a contained volume having known dimensions, wherein the first capacitance changes as a substance is received into the contained volume; a second capacitive sensor having a plurality of trigger points at a plurality of corresponding known heights within the contained volume, the second capacitive sensor configured to detect when the substance received into the contained volume has reached each of the corresponding known heights within the contained volume; and wherein at least one of a level of the substance within the contained volume, a volume of the substance within the contained volume, or a flow rate of the substance into the contained volume is determined based on data from the first capacitive sensor and the second capacitive sensor.

In one aspect the present disclosure relates to a sensor for measuring at least one physical or chemical parameter of a cartridge filled with a liquid substance. In a further aspect the disclosure relates to a drug delivery device equipped with such a sensor, wherein the sensor includes a planar flexible foil having a first section and having a second section separated from the first section, at least one measurement electrode located on the flexible foil, wherein the flexible foil is wrappable into a wrapped configuration in which the foil forms at least a first wrap with an inner diameter that is equal to or larger than an outer diameter of the cartridge, wherein in the wrapped configuration the first section and the second section at least partially overlap, at least one fastener located in one of the first and second section and configured to attach to the other one of the first and second sections for keeping the flexible foil in the wrapped configuration.

A flow sensor sub-assembly for sensing flow of a fluidic medicament is disclosed. The flow sensor sub-assembly includes a first spring contact and a second spring contact. The spring contacts are secured to a base that has a circuit for conducting an electrical signal to and from the spring contacts to a microprocessor. The first spring contact is in electrical communication with a first piezo element and the second spring contact is in electrical communication with a second piezo element. The first spring contact has a first contact force against the first piezo element and the second spring contact has a second contact force against the second piezo element, and the first and second contact forces are equivalent. A circuit board for interfacing to a flow sensor having a plurality of piezo elements for transmitting a flow signal indicative of flow of fluidic medicament is also disclosed.