FIELD: measurement technology. SUBSTANCE: flowmeter has n single-channel metering sections with two piezoelectric transducers, probing pulse switch, receive signal switch, amplifier, phase-locked loop, controlled self-excited oscillator, probing pulse shaper, Tmeas-long pulse shaper, crystal oscillator, AND circuit. Control unit connected to frequency divider, number code generator, and computer is coupled with switches. Same circuit components are used in each of a number of acoustic channels wherein inflow and counter-flow sync rings are organized. EFFECT: enhanced measuring accuracy. 3 dwg
Title | Year | Author | Number |
---|---|---|---|
GEAR MEASURING FLOW VELOCITY OF SUBSTANCE | 1999 |
|
RU2165085C2 |
MULTIFUNCTIONAL ULTRASONIC INDICATING DEVICE | 1999 |
|
RU2175437C2 |
ULTRASONIC PHASE DIGITAL FLOWMETER | 0 |
|
SU1137306A1 |
ULTRASONIC PIEZOELECTRIC CONVERTER | 1999 |
|
RU2180433C2 |
FREQUENCY-TYPE ULTRASONIC FLOWMETER | 0 |
|
SU655902A1 |
ULTRASONIC FLOW METER | 0 |
|
SU987394A2 |
ULTRASONIC FLOWMETER | 0 |
|
SU717543A1 |
PULSE SINGLE-CHANNEL ULTRASONIC FLOWMETER | 0 |
|
SU972223A1 |
ULTRASONIC FLOWMETER | 0 |
|
SU802792A1 |
PHASE ULTRASONIC FLOW METER | 0 |
|
SU1483266A1 |
Authors
Dates
2002-03-10—Published
2000-01-25—Filed