Abstract: An ultrasonic measuring arrangement (1) for the flow, speed of sound, density, viscosity and/or temperature measurement of flowing media, including a measurement tube (2) having a measurement section (3), with the tube being disposed in an area of a measurement housing (4). At least two ultrasound transmitting receivers are spaced apart as sensors for sound transmission through the measurement section (3) in the direction of flow of a medium, and opposite thereto, and for signal recording. In order to provide an ultrasonic measuring arrangement (1) that is simple and inexpensive to produce, has a small nominal diameter and permits direct sound transmission through the measurement section (3) at as low a transmission output as possible, the measurement tube (3) is configured together with the measurement housing (4) as a one-piece housing part (5) free of seals and seams, and the sound path form an acute angle with the flow direction of the medium.

Abstract: An ultrasonic measuring arrangement (1) for the flow, speed of sound, density, viscosity and/or temperature measurement of flowing media, including a measurement tube (2) having a measurement section (3), with the tube being disposed in an area of a measurement housing (4). At least two ultrasound transmitting receivers are spaced apart as sensors for sound transmission through the measurement section (3) in the direction of flow of a medium, and opposite thereto, and for signal recording. In order to provide an ultrasonic measuring arrangement (1) that is simple and inexpensive to produce, has a small nominal diameter and permits direct sound transmission through the measurement section (3) at as low a transmission output as possible, the measurement tube (3) is configured together with the measurement housing (4) as a one-piece housing part (5) free of seals and seams, and the sound path form an acute angle with the flow direction of the medium.

Abstract: A method for operating a measuring apparatus (1) for determining the flow rate of a flowable medium through a measuring section (3) is provided, wherein the measuring apparatus (1) has, as sensors, two ultrasonic transceivers (4), which are arranged spaced apart from one another, for the purpose of ultrasonic testing of the measuring section (3) in and counter to the flow direction and for the purpose of picking up signals and is operated with an ultrasonic phase difference method.

Abstract: A measuring apparatus (1) for detecting gases, in particular air, in a liquid-carrying transport line. The apparatus has at least one ultrasound transmitter (3) and at least one ultrasound receiver (4) as ultrasound sensors (3, 4), which are arranged essentially opposite one another with respect to a measuring pipe (2) in the region of the longitudinal sides of the measuring pipe (2), a control device (5) and a signal processing device (6). In order for the measuring apparatus (1) to operate with little disruption and to have a simple, cost-effective design, it is provided that the ultrasound transmitter (3) emits a continuous ultrasound signal, the signal processing device (6) amplifies the electrical signal processed by the ultrasound receiver (4), rectifies it, passes it to a memory device (6c) and uses a threshold value switch (9) to decide whether or not an electrical signal is then supplied to a control output and/or to a display device.

Abstract: A method for operating a measuring apparatus (10 for determining the flow rate of a flowable medium through a measuring section (3) is provided, wherein the measuring apparatus (1) has, as sensors, two ultrasonic transceivers (4), which are arranged spaced apart from one another, for the purpose of ultrasonic testing of the measuring section (3) in and counter to the flow direction and for the purpose of picking up signals and is operated with an ultrasonic phase difference method.