摘要:
The subject of the present invention is a method and a system for measuring a level of liquid inside of a hermetically closed container for pressurized liquid gas, such as LPG (liquefied petroleum gas) or LNG (liquified natural gas), utilizing a fluid level sensor, such as a microwave fluid level sensor or an optical time of flight level sensor.
摘要:
The invention relates to an electric circuit of a generator of oscillations, comprising an enhancement-mode field transistor T1, inductance L1 and resistance R1 connected to the source or the drain of the transistor T1, characterized in that the inductance L1 is connected directly between the gate and the drain of the transistor T1 or to an electric circuit of a generator of oscillations, comprising an depletion-mode field transistor T1, inductance L1 and resistance R1 connected with its one end to the source of the transistor T1, characterized in that the inductance L1 is connected directly between the gate of the transistor T1 and the other end of the resistance R1.
摘要:
The present invention relates to a liquid gas level measuring system for use in a liquid gas tank and designed to cooperate with a float level gauge head mounted on the gas tank and made of magnetically inert material. The system comprises a dial module (1) attachable to the float level gauge head and a sensor module (2) releasably connected to the dial module (1) . The dial module is provided with at least one directing dial magnet (103) magnetically coupled with a drive magnet of the float level gauge. The sensor module includes a Hall effect sensor, a battery (204) and a radio module with an antenna (205) , allowing wireless measurement data transmission to a remote location.
摘要:
The invention relates to an automatic cylinder changeover device (1), comprising two gas inlets for mounting gas cylinder banks, namely the left gas inlet and the right gas inlet, a gas outlet through which gas may be discharged and a valve suitable for connecting said left gas inlet or said right gas inlet with the gas outlet and configured for automatically reversible switching between these two connections, wherein the device (1) comprises an indicator, suitable for being manually set in one of two distinct positions, one of said positions indicating the left gas inlet and the other of said positions indicating the right gas inlet and comprises means for detecting the position of the indicator, including at least one sensor (5), preferably a pair of sensors (5). The invention also covers a method for monitoring a gas installation equipped with such automatic cylinder changeover device.
摘要:
According to the present invention there is provided a container (1) for pressurized liquid gas, such as LPG or LNG, having an opening (2) leading from outside to inside of the container (1) and having a microwave fluid level sensor (4) mounted on the outside of the container (1) over the opening (2) and configured to emit a microwave beam towards the inside of the container (1) and to receive a microwave beam reflected from the surface of the liquid inside the container (1). Between the microwave fluid level sensor (4) and the inside of the container (1) there is a lid (3) closing the opening (2), wherein said lid (3) is made of plastic material capable of transmitting at least a part of said microwave beams.
摘要:
The object of the invention is an extension for water meter, characterised in that it comprises an upper body (1) with a place reserved for an electronic teletransmission system and a lower body (2) having its shape adapted to the upper part of the water meter housing, equipped with a mounting means (2a, 2b, 2c, 3) for mounting the extension to the water meter (10), wherein the mounting means include at least one rigid hook (2c) and at least one hooking unit comprising a flexible hook (2a), a hook clamp (2b) and a screw (3) positioned relative to each other so that, after placing the extension on the water meter (10), the flexible hook (2a) falls into a hooking window (10a) of the water meter (10), and is blocked in this position by the hook clamp (2b) tightened with the screw (3).
摘要:
The invention relates to an automatic cylinder changeover device (1), comprising two gas inlets for mounting gas cylinder banks, namely the left gas inlet and the right gas inlet, a gas outlet through which gas may be discharged and a valve suitable for connecting said left gas inlet or said right gas inlet with the gas outlet and configured for automatically reversible switching between these two connections, wherein the device (1) comprises an indicator, suitable for being manually set in one of two distinct positions, one of said positions indicating the left gas inlet and the other of said positions indicating the right gas inlet and comprises means for detecting the position of the indicator, including at least one sensor (5), preferably a pair of sensors (5). The invention also covers a method for monitoring a gas installation equipped with such automatic cylinder changeover device.
摘要:
A method for digital wireless communication through a barrier (6) made of a conductive material, preferably metal, consisting in transmission of encoded digital information using a transmitter (1), by generation of a static magnetic field with a stepwise variable spatial orientation of the magnetic induction vector on the first side of the barrier (6), then reading the resulting spatial orientation of the magnetic induction vector on the second side of the barrier (6) using at least one spatial orientation sensor of the magnetic induction vector located in the receiver (3), and subsequently decoding the digital information from the stepwise variable spatial orientation of the magnetic induction vector by means of a reading system (4) connected to the receiver (3). The invention comprises also a system for performing digital wireless communication through a barrier (6) and a system for monitoring the level of fluid content in a metal air-tight container.