Jiangsu ultrasonic flowmeter manufacture

  Qtds ultrasonic flowmeter is a kind of non-contact instrument, which can measure the medium flow of large pipe diameter, and can also be used for the measurement of medium that is not easy to contact and observe
It has high measurement accuracy and is almost free from the interference of various parameters of the measured medium
In particular, it can solve the flow measurement problems of highly corrosive, non-conductive, radioactive, flammable and explosive media that cannot be measured by other instruments
Details of qtds series handheld ultrasonic flowmeter
Qtds series handheld ultrasonic flowmeter is suitable for on-line calibration and patrol measurement of liquid flow in various industrial sites
With the characteristics of high measurement accuracy, good consistency, battery power supply, simple operation and convenient carrying, it is a truly portable ultrasonic flowmeter with small volume and light weight in China
Its products are exported to Japan, South Korea, Australia, the United States and other regions and have been widely praised

Qtds handheld ultrasonic flowmeter features: friendly operation interface and full keyboard; Battery powered, sustainable use for 14 hours; The data can be quickly and easily transmitted to the computer through the serial port; Optional thickness gauge can realize wall thickness measurement; Sensor: firm, fast installation and high performance; With energy metering function, measurement accuracy: better than 1%
Repeatability: better than 0
2%
Working power supply: 90 ~ 230VAC (built-in Ni MH rechargeable battery, which can work for 10 hours after sufficient)
Installation method: external application installation, simple and convenient operation
4
Display of instantaneous flow rate and cumulative flow rate in the same line
Signal output: non isolated RS232 (Fuji extended protocol)
Data storage: the built-in data recorder can record time, cumulative flow, instantaneous flow, signal status, working time, etc
the stored data can be imported into the computer by using software
Other functions: self diagnosis, indicating whether the current working state is normal

Qtds ultrasonic flowmeter is a device that measures the information of fluid flow velocity by detecting the effect of fluid flow on ultrasonic beam
According to the detection mode of signal, it can be divided into propagation velocity difference method, Doppler method, beam offset method, noise method and correlation method
Doppler method uses the principle of acoustic Doppler to determine the fluid flow by measuring the ultrasonic Doppler frequency shift scattered by scatterers in uneven fluid
It is suitable for the measurement of fluid flow including suspended particles, bubbles and so on
The beam offset method uses the offset of the propagation direction of ultrasonic beam in the fluid with the change of fluid velocity to reflect the fluid velocity
At low velocity, the sensitivity is very low and the applicability is not good
At present, the most widely used is & rdquo; Time difference method & rdquo; Measurement principle
Combined with multi pulse technology, digital information processing technology and signal processing circuit, the measured data are displayed in real time

“ Time difference method & rdquo; The ultrasonic signal is generated by the transmitting sensor and distributed in the air flow
The signal passes through the pipe wall and fluid to the receiving sensor
At the same time, the receiving sensor emits the same ultrasonic signal, and the signal passes through the pipe wall and fluid to the transmitting sensor
At this time, due to the existence of flow velocity, the time difference can be used to calculate the flow velocity and then the flow