A medication injector for dispensing liquid medications to people includes a container which is filled with the liquid and which has an opening at one end for dispensing the liquid and at least one pair of capacitive measuring electrodes disposed opposite each other in the outer region of the container, in particular on the wall, for determining the permittivity of the respective medium in the intermediate region between the measuring electrodes. The measuring electrodes are used by the injector to determine the fill level of the container. A shielding surrounds the measuring electrodes in the manner of a sheath, is disposed around the container, and reduces possible external interfering influences on the capacitive measurement, such as those resulting from contact, for example. Additionally, a contact sensor is provided which can indicate the measurement as invalid.

A sensor is disclosed, which includes a resonant transducer, the resonant transducer being configured to determine the composition of an emulsion or other dispersion. The resonant transducer has a sampling cell, a bottom winding disposed around the sampling cell, and a top winding disposed around the bottom winding. The composition of the dispersion is determined by measuring the complex impedance spectrum values of the mixture of the dispersion and applying multivariate data analysis to the values.

The present invention provides a system for measuring instantaneous inflow rate of liquid, comprising: a receptacle, comprising an opening at a top side, a nozzle at a bottom and/or multiple holes on the side section of said receptacle configured to receive the inflow of liquid from said top opening, and simultaneously release said liquid through said nozzles; a sensing device, configured to sense the level of liquid within the receptacle and produce signals indicative of the level of liquid in the receptacle; and a processor, configured to receive said signals, calculate the level of liquid in the receptacle according to said signals; and analyze said calculations, to obtain the instantaneous inflow rate of liquid.

A lubrication pump assembly includes a fill tube and a sensor tube located within the fill tube. The sensor tube has a plurality of sensors disposed within the sensor tube and the sensors are configured to generate signals when triggered by a magnetic indicator, indicating a fill level of lubricant within the lubrication pump assembly. A follower within the lubrication pump assembly travels up and down within the lubrication pump assembly on a top of the lubricant. The fill tube is disposed between the sensor tube and the magnetic indicator.

Embodiments generally relate to froth measurement apparatus, and related methods and systems. An example apparatus comprises: an elongate first housing portion; and a series of sensor probes positioned along the first housing portion, each of the sensor probes having a probe body extending away from the first housing portion by a distance and comprising first and second electrodes for measuring changes in electrical potential associated with froth and/or bubbles. The sensor probes comprise signal processing circuitry coupled to the probe bodies to receive analog output signals from the probe bodies and to generate digital output signals based on the analog output signals. The apparatus comprises at least one processor configured to receive the digital output signals or sensor information based on the digital output signals and configured to determine at least one froth parameter over a sampling period based on the digital output signals or the sensor information.

A sensor unit includes n columns of sensors in which electrode pairs are arranged. The electrode pairs are positioned at boundaries of regions and at boundaries of division regions. A sensor in a first column has a.sub.1 division regions, a second column has a.sub.1 regions corresponding to the division regions in the first column and each of the regions has a.sub.2 division regions. An n-th column has regions whose number is obtained by multiplying numbers from a.sub.1 to a.sub.n1 and which correspond to division regions in an n1-th column and each of the regions has a.sub.n division regions.

A fountain lamp with a water entry sensing and disinfection device, includes a housing, a lighting component, a pumping component, a water entry sensing device, and a control component. The housing is provided in an upper part with a closed floating chamber and a water outlet channel passing through the floating chamber. The water outlet channel is provided with water spray holes at an upper end. The lighting component is disposed within the floating chamber and configured for projecting light to form a column of light. The pumping component is connected to the housing and at least partially provided at a lower part of the floating chamber, the pumping component is in communication with the water outlet channel. The water entry sensing device is installed inside the housing. The control component is electrically connected to the water entry sensing device and the pumping component.

A system and method for remotely monitoring a sump pump system are disclosed. The sump pump system comprises a control system connected to an integrated arrangement of a sensor chamber and a sump pump. The sensor chamber includes a pressure sensor and a capacitive touch sensor for measuring the water level to automatically turn the sump pump on when the water rises to a preset level. A wireless controller is connected to the system, for wirelessly receiving monitoring instructions and wirelessly transmitting sump pump status data to a remote device. Further, a user can configure a water-attribute value by using an application in the remote device. The user can operate and manage sump pump data via the application.

The invention provides a non-contact type water level detection and management method, comprising: obtaining a reference capacitance value of a target pet water dispenser in a waterless state; collecting a real-time detection capacitance value in water of the pet water dispenser at preset intervals during regular operation of the pet water dispenser; comparing the reference capacitance value with the real-time detection capacitance value in water to determine a current water level state in the water dispenser; and controlling and managing an operation state of a water pump in the pet water dispenser based on the water level state. By using a no-load calibration value as a reference datum in combination with periodic detection, the invention can accurately distinguish between watery and waterless states, improve the accuracy of water level judgment, effectively avoid false triggering of water pump operation, and has the advantages of simple structure, low cost, and strong applicability.

A liquid level measurement system may include a liquid level sensor coupled to an outside of the tank, the liquid level sensor configured to output a sensor signal, and a controller configured to receive the sensor signal from the liquid level sensor and determine whether the liquid within the tank is at a level at or above the liquid level sensor based on the sensor signal.