摘要:
The amount of processing liquid consumed from the processing liquid in the tank is calculated based on the history of opening and closing events of one or more of the valves, and that the anomaly detection controller of the substrate processing apparatus generates a level sensor failure alarm if the calculated amount of consumed processing liquid has increased beyond a state transition liquid consumption amount and yet the level sensor has not switched from the first state to the second state. The substrate processing apparatus and the level sensor are designed so that the level sensor switches from the first state to the second state when the calculated amount of consumed processing liquid has increased beyond the state transition liquid consumption amount.
摘要:
An ultrasonic reactor water level measuring device and an evaluation method are provided and prevent a reduction in the measurement accuracy of a water level that is in a wide measurement range. The ultrasonic reactor water level measuring device includes an upper tube extending from a gas phase portion in a reactor, a lower tube extending from a liquid phase portion in the reactor, measurement tubes connected to each other and arranged at multiple stages between the upper tube and the lower tube, and units for generating and receiving ultrasonic waves, the units being arranged at bottom portions of the measurement tubes. The ultrasonic reactor water level measuring device measures levels of water within the measurement tubes and calculates a water level within the reactor from the sum of the measured water levels, the sum excluding an overlapped part of the measurement tubes.
摘要:
A device has at least one channel for detecting the phase boundary between media in a liquid container and has a probe which can be fed in the direction of the phase boundary and a circuit which processes a signal of the probe to detect a capacitance change. The device includes a testing module which executes an infeed movement of the probe. The testing module performs an analysis of the signal of the channel, and makes a connection statement about the electrical connection between the probe and the measuring circuit. The testing of the electrical connections is performed in a dry manner, i.e., a phase boundary does not have to be searched for or penetrated for the testing.
摘要:
A system for monitoring a liquid level in an aircraft shock strut includes a cylinder having an internal chamber sealed by a piston telescopically movable within the cylinder. The chamber contains a gas and a liquid, and a sensor assembly is provided for monitoring a condition of a level of the liquid in the chamber. The sensor assembly includes at least one probe within the chamber, and a fitting assembly allows one or more leads from the probe to pass through the wall of the strut while maintaining pressure in the chamber. The fitting assembly includes a plug molded to the one or more leads extending from the probe. The fitting assembly also includes a retainer for holding the plug in sealed relationship with a through passage in the strut.
摘要:
A measuring arrangement for determining at least one measured quantity with a sensor device and a transmitter device that has a control device, a switch device and a signal output setting device. The control device is connected to the signal output setting device in the case in which the switch device is in the first state. The signal output setting device generates a fault signal as an output signal when the switch device is in the second state and/or that the signal output setting device is free of a connection to the control device. The sensor device keeps the switch device in the first state when the sensor device is supplied with energy above a definable minimum value. The control device reduces the power supply of the sensor device to a definable boundary value when it recognizes the presence of a fault state.
摘要:
A service module is for a level measuring device, which after being connected to the level measuring device can identify automatically the level measuring device, the operating program version used by the level measuring device and a status message generated by the level measuring device. Then the service module determines on the basis of the status message, what data is required from the level measuring device in order to identify a status of the level measuring device, which status is associated with the status message. This data is received on a data storage unit, which unit can be analysed in the laboratory. A service engineer is not required on site.
摘要:
Fill level monitoring relates to a method for controlling the fill level of a collecting vessel, wherein the collecting vessel could be filled with a dielectric medium. A fill level is monitored by a monitoring circuit with a measuring capacitor, the capacity of which changes steadily in correlation with the fill level, at least beyond a fill level range of the collecting vessel. The method includes: determining a capacity of the measuring capacitor; determining the quality of the measuring capacitor; determining a permissivity of the dielectric medium on the basis of the quality of the measuring capacitor; determining a fill level of the collecting vessel on the basis of the determined capacity of the measuring capacitor and the permissivity of the dielectric medium; and fill level-dependent drainage of the dielectric medium from the collecting vessel.
摘要:
A system for monitoring a liquid level in an aircraft shock strut includes a cylinder having an internal chamber sealed by a piston telescopically movable within the cylinder. The chamber contains a gas and a liquid, and a sensor assembly is provided for monitoring a condition of a level of the liquid in the chamber. The sensor assembly includes at least one probe within the chamber, and a fitting assembly allows one or more leads from the probe to pass through the wall of the strut while maintaining pressure in the chamber. The fitting assembly includes a plug molded to the one or more leads extending from the probe. The fitting assembly also includes a retainer for holding the plug in sealed relationship with a through passage in the strut.
摘要:
A hand held portable truck safety equipment tester uses loading rack criteria to confirm proper operation of the truck but is contained in a small portable battery operated unit. This unit allows for correlation to a rack controller's test and includes direct readout via an LED screen showing the error condition. Additionally, the tester has the capability to test all types of trucks without the need for adapters to accommodate different connectors and allows for remote diagnostics. The tester automatically determines which type of sensor and what grounding system is used.
摘要:
A system for monitoring a liquid level in an aircraft shock strut includes a cylinder having an internal chamber sealed by a piston telescopically movable within the cylinder. The chamber contains a gas and a liquid, and a sensor assembly is provided for monitoring a condition of a level of the liquid in the chamber. The sensor assembly includes at least one probe within the chamber, and a fitting assembly allows one or more leads from the probe to pass through the wall of the strut while maintaining pressure in the chamber. The fitting assembly includes a plug molded to the one or more leads extending from the probe. The fitting assembly also includes a retainer for holding the plug in sealed relationship with a through passage in the strut.