To provide a technology capable of accurately measuring pressure from the outside of a tube in a non-wetted manner. The present technology provides, for example, a pressure measurement method at least including: a moving step of moving a detection unit that detects a force accompanying deformation of a flexible tube by a predetermined distance in a load measurement direction of the tube; a reaction force measurement step of measuring a reaction force of the tube by the detection unit; and a measurement step of measuring an internal pressure of the tube on the basis of the reaction force in the reaction force measurement step.

The invention relates to a take-up device intended to be mounted on an opening of a pipeline, said device comprising: a base having a through-hole, and a seal intended for sealing the connection between the opening of said pipeline and the through-hole of said base. The base further comprises at least two anchoring points, and the device comprises a clamping collar comprising: an elongate element intended to partially surround the pipeline, said elongate element being mounted on the base by inserting the ends of the elongate element in the through-openings and forming a loop around the edges of said base, and means for adjusting the length of the clamping collar so that the device is able to be mounted on pipelines of different diameters.

A method for manufacturing a pressure-sensitive sensor includes providing an extruder that includes a cylindrical die, a mandrel arranged inside the die and having plural helical grooves on an outer circumferential surface, and an annular outlet sandwiched between the die and the mandrel, and by using the extruder, performing simultaneous extrusion-molding of an elastic insulating material and an elastic conductive material by supplying the elastic conductive material into not less than two of the grooves from the inside of the mandrel while extruding the elastic insulating material, so as to form a pressure-sensitive sensor. The sensor includes a tubular body including an elastic insulation and having a hollow portion along a longitudinal direction, and not less than two conductive ribs including an elastic conductor and helically provided along an inner circumferential surface of the hollow portion of the tubular body so as to protrude inward from the inner circumferential surface.

A fluid monitoring assembly includes a segment of tubing having a wall defining a lumen through which the fluid passes and a sensor at least partially embedded within a wall of the tubing. The assembly includes a housing having first and second portions connected to one another at a hinge, the housing defining an interior portion configured to hold the segment of tubing and the sensor. The housing may be opened and closed as needed using a fastener.

A fluid monitoring assembly includes a segment of tubing having a wall defining a lumen through which the fluid passes and a sensor at least partially embedded within a wall of the tubing. The assembly includes a housing having first and second portions connected to one another at a hinge, the housing defining an interior portion configured to hold the segment of tubing and the sensor. The housing may be opened and closed as needed using a fastener.

A pressure transducer comprising a flexible member made of amorphous quartz and a crystalline quartz sensor are coupled together without an adhesive material. Instead, the amorphous quartz and the crystalline quartz sensor are coupled together at the molecular level. In some embodiments, the crystalline quartz sensor remains in compression or tension during the entire operating range of the pressure transducer. In one embodiment, the crystalline quartz sensor is pre-stressed in either compression or tension when the pressure transducer is exposed to atmospheric pressure. In one embodiment, pressure transducer is located in pressure stabilizing system.

A pressure sensing device is operable to monitor pressure variations within a fluid pipeline. The pressure sensing device comprises a pair of complementary sensor elements. At least one of the sensor elements is mounted to a supporting bracket that is mounted to a point on the external surface of the pipeline. At least one sensor element is mounted such that the pair of complementary sensor elements experience relative displacement as the external surface of the pipeline undergoes changes in size or shape. The pair of complementary sensor elements are operable to detect said relative displacement and thereby provide an indication of pressure variation within the pipeline.

A pressure measurement device for determining a pressure of a fluid located inside a cylindrical casing includes: at least one sensor for determining a force acting thereon; and a clamp for peripheral attachment to the casing. The at least one sensor is arranged inside the clamp and is operatively connected thereto. The clamp includes a peripheral link chain having chain links that are pivotably coupled to one another at end joints, and a closure device that interacts with a first chain link and a final chain link.

Flow through connectors and pressure sensing devices as well as their methods of use are described. In some instances a pressuring sensing device may include a ceramic body with a flow path extending through the ceramic body and at least one non-ceramic body attached to the ceramic body. The at least one non-ceramic body may include one or more attachment features formed therein and the flow path extends through the at least one non-ceramic body as well.

Flow through pressure sensors for use in fluid chromatography systems include a planar device formed from diffusion bonding of a plurality of metallic sheets and at least one sensing element. The planar device has a top surface, a bottom surface and a flow through channel. A diaphragm formed from a portion of one of the top or bottom surfaces is located adjacent to a sensing region of the flow through channel and is attached to the sensing element. The diaphragm is sized to deflect a distance in response to fluid pressure in the sensing region, which has an internal volume of less than about 25 microliters. The diaphragm and attached sensing element form a pressure sensor that measures strain or deflection of the diaphragm to calculate a pressure within the sensing region.