A liquid level detection device detecting a liquid level of a liquid in a container includes a heater configured to heat the container, a plurality of temperature sensors provided at different heights of the container, and configured to detect a surface temperature of the container, and a controller configured to detect the liquid level of the liquid in the container, based on the surface temperature of the container detected by the plurality of temperature sensors when the heater is caused to heat.

A linear transmission device with capability of real-time monitoring of an amount of a lubricant includes a long shaft, a moving part, a lubricating device and a detecting module. The lubricating device includes a shell and an oil containing unit. The shell is formed with a first accommodating space. The oil containing unit is disposed in the first accommodating space and configured to provide the lubricant to an outer surface of the long shaft. The detecting module includes a temperature sensing unit and a control unit. The temperature sensing unit is configured to detect a current temperature of the oil containing unit. The control unit is connected with the temperature sensing unit and configured to: receive the current temperature; calculate a remaining amount of the lubricant of the oil containing unit based on the current temperature and an oil releasing model; and output the remaining amount.

A linear transmission device with capability of real-time monitoring of an amount of a lubricant includes a long shaft, a moving part, a lubricating device and a detecting module. The lubricating device includes a shell and an oil containing unit. The shell is formed with a first accommodating space. The oil containing unit is disposed in the first accommodating space and configured to provide the lubricant to an outer surface of the long shaft. The detecting module includes a temperature sensing unit and a control unit. The temperature sensing unit is configured to detect a current temperature of the oil containing unit. The control unit is connected with the temperature sensing unit and configured to: receive the current temperature; calculate a remaining amount of the lubricant of the oil containing unit based on the current temperature and an oil releasing model; and output the remaining amount.

The liquid level meter according to the present invention includes a resistive temperature detector, a temperature measuring body located above it, a temperature detecting unit detecting temperatures of the resistive temperature detector and the temperature measuring body, a current controlling unit determining a current value to be flowed through the resistive temperature detector so that the resistive temperature detector and the temperature measuring body become a predetermined temperature difference, a power supply unit supplying the current of the determined current value to the resistive temperature detector, and a liquid level detecting unit detecting a position of a liquid level. The liquid level detecting unit detects the change in the relative position of the liquid level relative to the resistive temperature detector by determining whether a change width of the current value flowing through the resistive temperature detector during a predetermined period of time is positive or negative, and whether the change width is not less than a predetermined value. As a result, the position of the liquid level can be accurately detected without being affected by the variation in the characteristics of the resistive temperature detector.

A vaporizing device for consuming a stimulant or a pharmaceutical substance by inhaling a vapour comprise a housing having an exit opening provided at one end of said housing, a vaporizer connected to said exit opening via a vapour conduit, said vaporizer having an electrically driven heating unit and a liquid exposure section that is heated by the heating unit to vaporize a liquid in said liquid exposure section, a liquid reservoir connected to said liquid exposure section via a liquid conduit, and an electrical energy storage unit electrically connected to said heating unit, wherein an electrical fluid level sensor is associated with said liquid reservoir, said fluid level sensor being arranged and adapted to produce a low-level-signal if the liquid level within said liquid reservoir is below a predetermined threshold.

The invention relates to devices for detecting media. These are distinguished, in particular, by the fact that simply the medium can be detected and/or properties of the or a medium can be determined or monitored. For this purpose, a heating sensor comprising a heating device and at least one p-n junction operated in the forward direction and a reference sensor comprising at least one p-n junction operated in the forward direction are spaced apart from one another. The heating device and the p-n junctions are connected to a control device, which is a control device ascertaining the presence and/or at least one property of the medium from the thermal properties of the medium.

A logic circuitry package for a replaceable print apparatus component includes an I2C interface to communicate with a print apparatus logic circuit and at least one logic circuit. The at least one logic circuit is configured to respond to communications over the I2C interface that are directed to an initial or reconfigured I2C address. The at least one logic circuit is configured to receive, via the I2C interface, a write command to a first memory address of the logic circuit to initiate a first function of the logic circuit. The at least one logic circuit is configured to generate first data in response to the first function. The at least one logic circuit is configured to receive, via the I2C interface, a first read command to a second memory address of the logic circuit. The at least one logic circuit is configured to transmit, via the I2C interface, the first data in response to the first read command to the second memory address.

A method for controlling a water heater appliance includes energizing the heating element for an energization period, such as less than two seconds. During the energization period, the appliance controller measures the electrical current passing through the heating element. The measured electrical current and a base signal are passed through a correlation filter to determine a correlation value. The base signal may correspond to the electrical current passing through the heating element when the tank is full or when the tank is empty, and the correlation value may be used to determine to which base signal the measured electrical current more closely correlates. In this manner, the correlation value is used to determine whether the heating element is submerged in water.

A logic circuitry package for a replaceable print apparatus component includes an interface to communicate with a print apparatus logic circuit and at least one logic circuit including a memory storing a reference parameter. The at least one logic circuit is configured to receive, via the interface, a first request sent to a first address to read the reference parameter; and transmit, via the interface, the reference parameter in response to the first request. The at least one logic circuit is configured to receive, via the interface, a second request sent to a second address to implement a task; and implement the task to output a digital value via the interface in response to the second request. The reference parameter corresponds to the digital value.

A logic circuitry package includes an interface to communicate with a print apparatus logic circuit and at least one logic circuit. The logic circuit is configured to receive, via the interface, a plurality of first requests in a heater disabled mode, each first request corresponding to a different sensor ID of a plurality of sensor IDs; transmit, via the interface, a first digital value in response to each first request; receive, via the interface, a plurality of second requests in a heater enabled mode, each second request corresponding to a different sensor ID of the plurality of sensor IDs; and transmit, via the interface, a second digital value in response to each second request. Delta values corresponding to a difference between the first digital value and the second digital value for each different sensor ID of the plurality of sensor IDs are indicative of a print material level.