A flow velocity sensor includes a substrate, a resistor, and a signal processing section. The substrate has first and second substrate surfaces outwardly opposite to each other. The first substrate surface is exposed to a fluid. The resistor is mounted on the second substrate surface. The resistor has a heat generating portion facing the second substrate surface. The signal processing section is configured to receive a signal from the resister. The signal from the resistor represents heat dissipation of the resistor. A fluid velocity is detected based on the signal from the resistor.

There is provided a control system for a furnace. The control system comprises a thermal imaging camera and a control unit. The thermal imaging camera is configured to receive thermal radiation from a plurality of positions in a furnace and to generate an image which includes temperature information for the plurality of positions in the furnace. The control unit is configured to receive the image from the thermal imaging camera and to generate control signals for the furnace using the image.

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 replaceable print apparatus component includes a print material reservoir, a print material within the reservoir having a first print material level, and a logic circuitry package including an interface and a logic circuit. The logic circuit may receive, via the interface, a first calibration parameter and receive, via the interface, a first request corresponding to a first sensor ID associated with a second print material level above the first print material level. The logic circuit may transmit, via the interface, a first digital value in response to the first request and receive, via the interface, a second calibration parameter less than the first calibration parameter. The logic circuit may receive, via the interface, a second request corresponding to the first sensor ID, and transmit, via the interface, a second digital value in response to the second request. The second digital value is less than the first digital value.

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.

A rapid rise in the temperature of a liquid level sensor is prevented even at close to a vacuum atmosphere. In a material supply system that is equipped with a tank containing a liquid material and with the liquid level sensor that is provided inside the tank, and in which the liquid level sensor is a self-heating type of sensor that, when the liquid level sensor is generating heat as a result of being supplied with a predetermined normal energy, detects a liquid surface, there are provided a monitoring portion that monitors a detection value from an output signal from the liquid level sensor, and an energy control portion that, when the monitored detection value reaches a predetermined upper limit value, performs control in such a way that the energy supplied to the liquid level sensor is low-level energy that is lower than the normal energy.

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 print apparatus component includes an interface to communicate with a print apparatus logic circuit, and at least one logic circuit. The at least one logic circuit is configured to receive, via the interface, a command series addressed to a first default address and a second default address, and transmit, via the interface, at least one response in response to at least one command of the command series. The at least one logic circuit is configured to receive, via the interface, an other command series addressed to an other first default address and subsequently, the second default address, and transmit, via the interface, at least one other response in response to at least one other command of the other command series.

A flow velocity sensor includes a substrate, a resistor, and a signal processing section. The substrate has first and second substrate surfaces outwardly opposite to each other. The first substrate surface is exposed to a fluid. The resistor is mounted on the second substrate surface. The resistor has a heat generating portion facing the second substrate surface. The signal processing section is configured to receive a signal from the resister. The signal from the resistor represents heat dissipation of the resistor. A fluid velocity is detected based on the signal from the resistor.