Abstract: A magneto-inductive, flow measuring device for measuring flow of a measured medium through a measuring tube, comprising: at least a first coil assembly for accommodating a coil core is arranged in a first passageway. The coil core has a broadened part and a first stop, which is arranged between the measuring tube and the coil. The broadened part of the coil core in the assembled state of the first coil assembly lies against the first stop of the coil body and prevents shifting of the coil core relative to the coil body along the longitudinal axis of the coil core in a first direction facing away from the measuring tube. The coil body has a second stop, wherein the coil core is secured to the coil body with a securement element (which, in the assembled state, lies against the second stop of the coil body under a prestress along the longitudinal axis of the coil core between the first stop and the second stop of the coil body.

Abstract: An apparatus and method for monitoring sanitary sewer systems designed to carry away wastewater through a system of buried pipes, often referred to as “sewer lines”, to a sewage treatment facility, the apparatus and method use a weir which facilitates the collection of flow rate data in the sewer lines which in turn facilitates the determination of infiltration and inflow (“I/I”) of rain water, or clear water, into the sewer system in a manner which further allows the identification of specific I/I locations so that repair and construction of sewer systems can be efficiently coordinated.

Abstract: According to at least one embodiment, the embodiment provides a method for determining a size of an electronic apparatus. The electronic apparatus includes a connector for electrically connecting to an external apparatus, and a supporting plate for supporting a back surface of the external apparatus. The method includes determining a minimal length of the electronic apparatus by balancing moment of forces on a first fulcrum according to a first acting force, a gravity of the external apparatus and a length of the external apparatus in a condition that the external apparatus does not rotate with respect to the electronic apparatus.

Abstract: An apparatus for load testing a coupon may include a test frame and a pair of spaced apart load balancing assemblies connected to the test frame, each load balancing assembly of the pair of load balancing assemblies including a load leveling mechanism connected to the test frame and a plurality of spaced apart load plates, each load plate of the plurality of load plates having a first end pivotably connected to the load leveling mechanism and a second end, the second end of each load plate including a friction holder configured to frictionally engage an end of the coupon, wherein at least one load balancing assembly of the pair of load balancing assemblies is movable along an axis of movement with respect to an opposed load balancing assembly to communicate a load to the coupon.

Abstract: A measuring transducer comprises: a housing, with an inlet-side flow divider having four flow openings, and an outlet-side end having four flow openings; a tube arrangement having four tubes connected to the flow dividers; and a first coupling element. An exciter mechanism for producing and/or maintaining mechanical oscillations of the four measuring tubes. The first coupling element includes a deformation body and four connecting struts, of which connected with a first strut end and with the first measuring tube, a second connecting strut is connected with a first strut end and with a second strut end with the second measuring tube, a third connecting strut and with a second strut end with the first measuring tube, and a fourth connecting strut is connected with a first strut end and with a second strut end with the fourth measuring tube.

Abstract: Apparatus and related fabrication methods are provided for a sensor device. An exemplary sensor device includes a first structure including a first sensing arrangement and a second sensing arrangement formed therein and a second structure affixed to the first structure. The second structure includes a cavity aligned with the first sensing arrangement to provide a first reference pressure on a first side of the first sensing arrangement and an opening aligned with the second sensing arrangement to expose the first side of the second sensing arrangement to an ambient pressure.

Abstract: A retrievable pressure sensor for the in situ measurement of pressure of a process fluid in a pipe/chamber, and an associated method. The sensor includes a pressure-transferring arrangement which includes a device for sealing attachment in an opening in a wall of the pipe/chamber, a cavity containing a pressure-transferring fluid, a first separation diaphragm for separating between the process fluid and the pressure-transferring fluid, and a second separation diaphragm defining an outer boundary of the cavity containing the pressure-transferring fluid.

Abstract: A compression fitting includes a housing, a compressible seal, a follower and a driving member. The housing includes an axial cavity having a lateral sidewall that includes an axial keyway therein. The cavity terminates at a first end portion thereof at a seat. The compressible seal may receive a signal transmitting lead therethrough, and is disposed within the cavity and seated on the seat. The follower is axially movable within the cavity for selective engagement with the seal for axially compressing the seal against the seat, the sidewall of the cavity and the signal transmitting lead. The follower includes an integral key that extends laterally outward therefrom and is received within the keyway, and an axial bore for accommodation therewithin of the lead. The driving member is rotatably mounted on the housing and engageable with the follower such that rotation of the driving member causes an axial translation thereof.

Abstract: Apparatus configured detect a physical quantity, for example a density, of a flowing fluid, the apparatus including: a sensor body (2) configured to extend into the flowing fluid, the sensor body comprising a fiber Bragg grating (FBG) of a fiber Bragg grating sensor (3, 7, FBG), for generating a detector signal relating to vibration of at least part (2B) of the sensor body (2); and a processing unit, configured to process the detector signal, and to determine the physical quantity based on detected vibration at a mechanical eigenfrequency of the flexible part (2B) of the sensor body (2).

Abstract: A circuit board has a hollow space partitioned with a detection film on the front side exposed in a passage. The circuit board is accommodated in a recess of a support member and opposed to a bottom surface of the recess on the rear side. The bottom surface of the recess has a groove on one side in both the X-axis and Y-axis directions relative to the detection film. The groove inclines airflow in the groove relative to both the X-axis and Y-axis directions to guide the airflow toward the rear side of the detection film.

Abstract: A load detection device for a vehicle seat includes a strain generating body including a first end hole, a second end hole and a strain gauge, a first fixing member including a first middle shaft portion and a first end shaft portion, a second fixing member including a second middle shaft portion and a second end shaft portion, a bracket member including first and second fixing portions connected to each other with a connecting portion, first and second fixing holes, the first end shaft portion is press-fitted into the first fixing hole, the second fixing hole is fitted onto the second end shaft portion in a manner that the second fixing hole includes a degree of freedom of a movement thereof in a lengthwise direction and a movement thereof in a direction intersecting with the lengthwise direction is restricted, and a connecting member.

Abstract: An object is to prevent a bottle from being inclined when a weight is dropped, and to prevent cushion members from moving due to the impact applied when the bottle is inclined, thereby enabling efficient and correct measurement of the water hammer strength. An apparatus for testing the water hammer strength includes holding element that holds bottle filled with content and sealed with a cap at a position above the center of gravity thereof so as to suspend the bottle in the air, and the holding element is placed on cushion members placed on a fixing stage. A weight is then dropped onto the cap to measure the water hammer strength. The cushion members are compressed and deformed in advance using a compression element for forcing the holding element downward to solve the above-described problems.

Abstract: For flow measurement a device with a compact housing and a fixable hinged cover has a measuring channel for inserting a flexible tube such that it becomes deformed in a defined way. The measuring channel extends over the entire width of the housing. A measuring cell arranged in the center of the measuring channel has four ceramics I, II, III, IV, integrated in a sound-decoupled way and facing each other diagonally in pairs, which are placed in lateral parts on the left and on the right of the measuring cell, and a base plate limiting the measuring cell downwards in the direction of an installation space for an electric evaluation system, wherein the base plate also limits the remaining area of the measuring channel from below.

Abstract: A stator includes: cylindrical stator cores, each of which is formed of a laminated structure of electromagnetic steel sheets and at which an exciting coil and a detection coil are wound; and a mounting seat portion that is fixedly fitted to axial end faces of the stator cores. Insertion holes through which inserting bolts are passed are formed in the mounting seat portion.

Abstract: A chain force measuring device for measuring a chain force of a bicycle includes a dropout body unit having frame and axle connecting portions which are respectively connected to a frame fork and a wheel axle to define an accommodation space therebetween, and a hall sensing unit having a sensor extending from the frame connecting portion to spacedly confront a magnetic element which is disposed on a slidable carrier. By shifting of the magnetic element with the carrier due to the chain force exerted on the wheel axle, a magnetic field generated thereby is changed so as to give off a signal indicative of the magnitude of the chain force.

Abstract: An ultrasonic flow sensor for use in a fluid medium is described. The ultrasonic flow sensor includes at least two ultrasonic converters which are situated in a flow tube offset relative to one another, longitudinally with respect to a flow of the fluid medium. The ultrasonic flow sensor also includes a reflection surface, the ultrasonic converters being set up to exchange ultrasonic signals via simple reflection on the reflection surface. In addition, a deflection device is provided between the ultrasonic converters which is set up to essentially suppress parasitic ultrasonic signals, which are reflected from the reflection surface and which strike the deflection device, by deflection away from the ultrasonic converters.

Abstract: The invention relates to a submillimeter-sized hot-wire sensor (1) comprising a substrate (10), two support rods (11, 12), a metal wire (13) extending between the two ends of the support rods (11, 12), and electrical contacts (14, 15) disposed on the support rods, said contacts each being linked to one of the ends of the wire (13). The metal wire comprises at least two layers of metal materials, one of said layers being made of a material exhibiting a residual stress under tension and the other layer being made of a material exhibiting a residual stress under compression. The thicknesses of these metal layers are adapted so as to compensate the residual stresses between the various layers.

Abstract: A recursive hexapod testing machine for mechanical testing of deformable material specimens under six degrees of freedom multiaxial loading. The machine includes a fixed base, a movable base connected to the fixed base at by a hexapod arrangement of six linearly extendable actuator linkages, with an end of each linkages attached to the movable base and the other end of the linkage attached to the fixed base. Each actuator linkage includes a hydraulic cylinder and piston, a digitally-controlled electro-hydraulic servo-valve for actuating the hydraulic cylinder in response to a digital command string, a load cell in line between the piston and the universal joint attached to the movable base, a linear variable displacement transducer for measuring extension of the piston, and a magneto-resistive position transducer for measuring a position of the piston. The servo-valves extend each hydraulic cylinder a predetermined amount to effect a desired motion of the material specimen.

Abstract: An apparatus and method for inspecting a rubbing-cloth is provided. The apparatus for inspecting a rubbing-cloth includes: a base-platform provided with a pressure-sensing device on a surface thereof; a supporting-frame; a rubbing-roller, rotatably supported above the surface of the base-platform by means of the supporting-frame, with a rubbing-cloth wrapped around an outer circumference of the rubbing-roller; when the rubbing-roller is rotated, the rubbing-cloth rubs the surface of the base-platform, and the pressure-sensing device can detect pressure-sensing signals of pressure applied by the rubbing-cloth at each of detection-points on the surface of the base-platform.

Abstract: A method and apparatus for measuring a resultant flow delivered by a pump coupled to an over pressure valve, the method comprising the steps of: measuring, using a first flow meter, feed flow to the pump; measuring, using a second flow meter, return flow from the over pressure valve; and calculating resultant flow, at least in part, by subtracting measured return flow from measured feed flow. A pump power modification module can further modifying the pump output pressure to enable pressure profiling.