Method for determining a pressure in a pressure cell, the method consisting in determining a measuring signal (x) that is at least proportional to a measured pressure in the pressure cell, generating an output signal (y) from the measuring signal (x) using a filter unit (10) comprising a transfer function by at least reducing, preferably eliminating, a noise signal contained in the measuring signal determining a change over time of the measuring signal (x), and setting the transfer function as a function of the change over time of the measuring signal (x). A measuring cell arrangement is also specified.

The invention relates to a density monitor (10) for monitoring a gas density in a gas chamber (20). The density monitor (10) comprises a measuring apparatus (12) having a first measuring device (24) and a second measuring device (28), the two measuring devices (24; 28) being coupled together. The first measuring device (24) is designed to measure a first pressure range (62) in relative terms with respect to an atmosphere, and the second measuring device (28) is configured to measure a second pressure range (64) in absolute terms. The density monitor (10) further comprises an indicator device (50), which is designed to indicate the two pressure ranges (24; 28). The density monitor (10) also comprises a movable drive element (48), which is designed to drive the indicator device (50), wherein at least one of the two measuring devices (24; 28) is designed to move the drive element (48) in order to drive the indicator device (50), wherein the indicator device (50) comprises an indicator element (58) which is designed to indicate the two pressure ranges (62, 64).

A measurement system (20) includes pressure measurement apparatuses (220, 221, 222) capable of measuring pressure. The pressure measurement apparatuses (220, 221, 222) measure pressure at a measurement timing designated by a trigger signal.

Monitoring systems and methods for a relief valve system. In one example, a monitoring system for a relief valve includes at least one tilt sensor coupled to one or more of a cover or a latch of the relief valve. The at least one tilt sensor is associated with an interface. Upon detection by the at least one tilt sensor that one of the cover is open or the latch is unlocked, a signal is transmitted by the interface indicating one or more of the cover is open or the latch is unlocked.

Provided are a sensor, a display panel and a display device. The sensor includes: a flexible film; a first carrier substrate disposed opposite to and spaced apart from the flexible film; a protrusion structure disposed on a side, facing toward the flexible film, of the first carrier substrate; multiple sensing units located on a side, facing toward the first carrier substrate, of the flexible film; where a perpendicular projection of the protrusion structure on a plane where the flexible film is located does not overlap perpendicular projections of the multiple sensing units on the plane where the flexible film is located; and a shielding structure, which is disposed at least partially around the protrusion structure.

A pressure gauge includes an introduction member, a connection member, a bourdon tube, a pointer, a dial plate, a detector, and an information communication unit. A battery installed in the information communication unit is disposed between a circuit board and a lid. The information communication unit is inserted in a through hole of the dial plate to be disposed astride between a front surface and a rear surface of the dial plate and the lid is disposed on a side of the information communication unit close to the front surface of the dial plate.

Systems and methods are provided for providing a tire pressure enhancing device for increasing the air pressure of tires mounted on a vehicle. For example, an air compressor may be coupled to an engine of a vehicle to compress air. The compressed air is then stored in the frame of the vehicle. The compressed air may be transferred to each tire through a hose via an access point in the frame.

A nail gun system includes a nail gun and a measuring device. The nail gun includes a cylinder unit, an inlet valve that is mounted to the cylinder unit for allowing air to enter the cylinder unit, and a power unit that is operable for increasing an air pressure inside the cylinder unit, and that is further operable for striking a nail using the air pressure. The measuring device is connected to the nail gun, and includes a pressure measurement module that is adapted for measuring a pressure value of the air inside the cylinder unit, and at least one display module that includes a display section, and a first indicator for indicating the pressure value on the display section.

An apparatus, having: a pressure differential sensor apparatus (100) configured to detect a pressure difference between two locations; a faceplate (102) having a base (104) and a protrusion (106) from the base, the protrusion comprising a light-transmissive perimeter (116) configured to transmit light forward and laterally; and a circuit board (400) having an indicator light (402) mounted thereon and configured to emit light into the light-transmissive perimeter, the indicator light further configured to emit a first color under first pressure difference conditions and a second color under second pressure difference conditions.

A differential pressure sensor with wireless RFID communication ability senses and records a specified differential pressure threshold without great energy consumption and without requiring direct access or visual inspection of the sensing element. The differential pressure sensor includes a sensing element sensing a differential pressure between a low pressure side and a high pressure side and a RFID tag comprising a tag antenna, a tag integrated circuit (IC) and a tamper loop connected to the tag IC for tracking a specific differential pressure threshold of the differential pressure sensor. The RFID tag is connected to the sensing element in such a way that the tamper loop is triggered if the specific differential pressure threshold has been reached.