Abstract: Disclosed is a flow meter with at least two measuring sensors, preferably ultrasonic sensors, spaced apart from each other, wherein the coupling of the measuring signals into and out of a fluid is performed via a coupling element According to the disclosure, the measuring channel is formed with an approximately oval or trapezoid cross-section.

Abstract: Disclosed is a flow meter with at least two measuring sensors, preferably ultrasonic sensors, spaced apart from each other, wherein the coupling of the measuring signals into and out of a fluid is performed via a coupling element which is inserted flush into a circumferential wall of a measuring channel.

Abstract: Disclosed is a flow meter with at least two measuring sensors, preferably ultrasonic sensors, spaced apart from each other, wherein the coupling of the measuring signals into and out of a fluid is performed via a coupling element which is inserted flush into a circumferential wall of a measuring channel.

Abstract: Disclosed is a flow meter with at least two measuring sensors, preferably ultrasonic sensors, spaced apart from each other, wherein the coupling of the measuring signals into and out of a fluid is performed via a coupling element According to the disclosure, the measuring channel is formed with an approximately oval or trapezoid cross-section.

Abstract: A measuring device is provided that includes a fluid meter for determination of the flow rate of a fluid flowing through a measuring tube, at least one measuring unit for detecting physical, chemical or biological properties of the fluid, at least one evaluation unit for evaluation of the data captured by means of the measuring unit, and at least one communication unit, wherein the measuring unit, evaluation unit and communication unit are designed as one or more individual modules and each individual module can be connected mechanically to the fluid meter.

Abstract: The invention relates to a turbine flowmeter for measuring the consumption of fluids, particularly water. The turbine flowmeter comprises a housing (1) with an inflow (2), and outflow (3) and a flow channel (4). The turbine flowmeter also comprises a measuring unit (5) for measuring and indicating the consumption. A turbine (10) with a hub (11) and a number of radial vanes (12.1, 12.2) is located inside the channel (4). A holding insert (20) is also located inside the channel (4) and is comprised of a water guide cross (20.1) and of an insert base body (20.2). The water guide cross (20.1) comprises a hub (21), radial struts (22) extending from the hub (21) to the wall of the channel (4), a nozzle body (23), which surrounds the front (14) of the turbine (10), however, a gap (17) remains through which the fluid flows, and comprises a central opening (24) in the nozzle body (23). The vanes (12.1. 12.2) of the turbine (10) are positioned near the nozzle body (23). A nozzle ring (16) connects the vanes (12.1, 12.

Abstract: The invention relates to a turbine flowmeter for measuring the consumption of fluids, particularly water. The turbine flowmeter comprises a housing (1) with an inflow (2), and outflow (3) and a flow channel (4). The turbine flowmeter also comprises a measuring unit (5) for measuring and indicating the consumption. A turbine (10) with a hub (11) and a number of radial vanes (12.1, 12.2) is located inside the channel (4). A holding insert (20) is also located inside the channel (4) and is comprised of a water guide cross (20.1) and of an insert base body (20.2). The water guide cross (20.1) comprises a hub (21), radial struts (22) extending from the hub (21) to the wall of the channel (4), a nozzle body (23), which surrounds the front (14) of the turbine (10), however, a gap (17) remains through which the fluid flows, and comprises a central opening (24) in the nozzle body (23). The vanes (12.1. 12.2) of the turbine (10) are positioned near the nozzle body (23). A nozzle ring (16) connects the vanes (12.1, 12.

Abstract: The present invention relates to water meters for the installation in pipe lines of a nominal width-group and a method for operating such water meters, which operate according to the Woltmann principle. The present invention addresses the problem of avoiding the calibration expenditures for each of the nominal widths of the nominal width-group and the disadvantages entailed therein. The solution of this problem, stated generally, is that in the water meters at the relevant site, namely in the annular channel (16) directly in front of the impeller wheel (8), independently of the nominal width of the connected pipe line, a substantially rectangular velocity distribution (19) obtains with stream lines directed substantially parallel to the wall of the annular channel (16), with these flow conditions being substantially identical at identical throughflows.

Abstract: The present invention relates to water meters for the installation in pipe lines of a nominal width-group and a method for operating such water meters, which operate according to the Woltmann principle. The present invention addresses the problem of avoiding the calibration expenditures for each of the nominal widths of the nominal width-group and the disadvantages entailed therein. The solution of this problem, stated generally, lies therein that in the water meters at the relevant site, namely in the annular channel (16) directly in front of the impeller wheel (8), independently of the nominal width of the connected pipe line, a substantially rectangular velocity distribution (19) obtains with stream lines directed substantially parallel to the wall of the annular channel (16), with these flow conditions being substantially identical at identical throughflows.

Abstract: The turbine flowmeter includes an impeller wheel mounted, so that it can rotate, between an upstream hub and downstream hub in a tubular element. The hubs are mounted securely in the tubular element by ribs. A device for regulating to compensate measuring errors resulting from manufacturing tolerances is provided at least on the upstream hub.