A system for pressure measurement within a surgical system is disclosed. The system comprises a pressure sensitive disc in communication with at least one applied pressure a magnetic field generator for generating at least one first magnetic field, and at least one sensor for measuring at least one second magnetic field, wherein the at least one first magnetic field at least partially creates the at least second magnetic field; and wherein the at least one sensor produces signal indicative of the distance between the at least one sensor and the at least one second magnetic field.

Measurement with satisfactory sensitivity in a low-pressure range, and accurate measurement in a wider pressure range, are realized by a pressure sensor that includes a diaphragm layer and a pressure receiving region formed on the diaphragm layer. The pressure sensor includes a first piezostrictive element, a second piezostrictive element, a third piezostrictive element, and a fourth piezostrictive element. In addition, the pressure sensor includes a first magnetostrictive element, a second magnetostrictive element, a third magnetostrictive element, and a fourth magnetostrictive element. A switching function unit outputs a pressure value calculated by a second calculation function unit until a pressure value calculated by a first calculation function unit exceeds a set threshold value, and outputs the pressure value calculated by the first calculation function unit when the pressure value calculated by the first calculation function unit exceeds the threshold value.

A space-saving pressure sensor for a metal or plastics processing tool is configured to perform date stamping during injection molding with the processing tool. The pressure sensor is configured to be inserted into a single drilled hole of the tool. A first cast-compatible mark and a second cast-compatible mark of the pressure sensor may be adjusted against one another in such a way that a variety of different date marks can be created, which may then be applied to different injection-molded products. The pressure sensor may be used within the framework of manufacturing an injection-molded product.

A pressure sensor comprises a deformable substrate, at least one coil supported by the substrate and responsive to a changing coil drive signal to produce a changing magnetic field, a fluid chamber having a first wall formed by the substrate and a second wall formed by a conductive material and positioned proximate to the at least one coil so that the changing magnetic field produces eddy currents within the conductive material that generate a reflected magnetic field, and at least one magnetic field sensing element configured to detect the reflected magnetic field and produce a signal responsive to a distance between the magnetic field sensing element and the second wall. The substrate is deformable by fluid pressure within the fluid chamber and the deformation of the substrate changes the distance between the magnetic field sensing element and the second wall.

A pressure capsule/header assembly for a process fluid pressure transmitter is provided. An isolator plug has an isolation diaphragm at a first end thereof and a second end spaced from the first end. The isolator plug has a fill fluid passageway fluidically coupling the first end to the second end. A header has a first end configured to carry a pressure sensor and a second end spaced from the first end. The header has at least one electrical interconnect extending from the first end to the second end. A biaxial support ring is disposed about an outer surface of the header. The biaxial support ring and the header define a tapered interference interface therebetween. The header is welded to the isolator plug at a first weld and the biaxial support ring is welded to the isolator plug at a location that is spaced from the second end of the header.

A pressure sensor comprises a deformable substrate, at least one coil supported by the substrate and responsive to a changing coil drive signal to produce a changing magnetic field, a fluid chamber having a first wall formed by the substrate and a second wall formed by a conductive material and positioned proximate to the at least one coil so that the changing magnetic field produces eddy currents within the conductive material that generate a reflected magnetic field, and at least one magnetic field sensing element configured to detect the reflected magnetic field and produce a signal responsive to a distance between the magnetic field sensing element and the second wall. The substrate is deformable by fluid pressure within the fluid chamber and the deformation of the substrate changes the distance between the magnetic field sensing element and the second wall.

A water bag pressure detection device, a water bag inflow control device and a water bag type water purifier are provided. The water bag pressure detection device includes: a base seat defining an airtight cavity therein, and having an upper end provided with a mounting opening; a pressure sensor module having at least a lower portion disposed in the airtight cavity and connected with a circumferential edge of the mounting opening in a sealing manner, an inductive head of the pressure sensor module being configured to abut against a lower portion of the water bag; and a ventilation member defining a ventilation passage therein and disposed to the base seat, the ventilation passage being provided with a balancing seal member configured to move in the ventilation passage along with variations of pressure in the airtight cavity and outside pressure.

A water bag pressure detection device (100), a water bag inflow control device (1000) and a water bag type water purifier are provided. The water bag pressure detection device (100) includes: a base seat (10) defining an airtight cavity (101) therein, and having an upper end provided with a mounting opening; a pressure sensor module (20) having at least a lower portion disposed in the airtight cavity (101) and connected with a circumferential edge of the mounting opening in a sealing manner, an inductive head (22) of the pressure sensor module being configured to abut against a lower portion of the water bag; and a ventilation member (30) defining a ventilation passage (301) therein and disposed to the base seat, the ventilation passage (301) being provided with a balancing seal member (40) configured to move in the ventilation passage (301) along with variations of pressure in the airtight cavity (101) and outside pressure.

The invention relates to a magnetic field sensor (100, 100A, 100B) for components (200) having a preferably cylindrical, conical, prismatic main body (210) or having a free-form main body, wherein at least one first magnetic conductive track (110) and at least one second conductive track (120) are mounted on the main body (210 of the component (200), and the at least second conductive track (120) is arranged at a distancepreferably in the form of a separation layer (300)from the at least first magnetic conductive track (110), wherein at least one exciter magnet is provided and a change in the magnetic flux due to a change in the distance (A) of the at least one first magnetic conductive track (110) from the at least second magnetic conductive track (120) is monitored.

A pressure sensor system is provided. In another aspect, a wireless intraocular pressure sensor includes a deformable or stretchable inductor. A further aspect of an intraocular pressure sensing system includes a deformable inductor sized to contact an eye. Another aspect provides an organ pressure sending system including a passive inductor with a wavy, serpentine or undulating shape.