RU2003944C1 - Ultrasonic flowmeter - Google Patents
Ultrasonic flowmeterInfo
- Publication number
- RU2003944C1 RU2003944C1 SU5017333A RU2003944C1 RU 2003944 C1 RU2003944 C1 RU 2003944C1 SU 5017333 A SU5017333 A SU 5017333A RU 2003944 C1 RU2003944 C1 RU 2003944C1
- Authority
- RU
- Russia
- Prior art keywords
- output
- input
- correlator
- amplifier
- adder
- Prior art date
Links
Description
которое через усилитель 4 и излучатель 5 поступает в движущуюс среду. Отража сь от движущихс частиц, акустический сигнал поступает на вход приемного элемента 7.which, through amplifier 4 and emitter 5, enters a moving medium. Reflected from moving particles, the acoustic signal is fed to the input of the receiving element 7.
b(t)-Aa(1+ )t-reb (t) -Aa (1+) t-re
2 V2 V
НУМ - А ехр {- В -t - (ге - гз)} хNUM - A exp {- B -t - (ge - rz)} x
/2V/ 2V
X (-t - (Ге - Г3) ,X (-t - (Ge - G3),
2 V2 V
R2(t) Az ехр {- В -1 - (ге - гэ)Г хR2 (t) Az exp {- B -1 - (ge - ge) G x
где V - скорость движени частиц;where V is the particle velocity;
с - скорость света;c is the speed of light;
тв - врем распространени акустического сигнала от излучени до приема.tv is the propagation time of the acoustic signal from radiation to reception.
Уравнение (3) показывает, что прин тый сигнал соответствует по форме излученному , но задержанному в акустическом канале . Одновременно с этим излучаемый сигнал a(t) задерживаетс блоком 9 регулируемой задержки на врем гэ:Equation (3) shows that the received signal corresponds in shape to the emitted but delayed in the acoustic channel. At the same time, the emitted signal a (t) is delayed by the adjustable delay unit 9 by the time ge:
d(t) a(t-r3).(4)d (t) a (t-r3). (4)
. Сигналы e(t) и d(t) одновременно поступают на два входа коррел тора 12 и через фазовращатели 10 и 12 на 90° на два входа коррел тора 13. На выходах коррел торов 12 и 13 образуютс напр жени . The signals e (t) and d (t) simultaneously arrive at the two inputs of the correlator 12 and through the phase shifters 10 and 12 through 90 ° to the two inputs of the correlator 13. At the outputs of the correlators 12 and 13, voltages are generated
Ri(t) А ехр {- В ЈЈ.t - (Те - г3)} х ,2VRi (t) A exp {- B ЈЈ.t - (Te - r3)} x, 2V
X COS fflo (-- t - (Ге - Г3) ,X COS fflo (- t - (Ge - G3),
2V2V
R2(t) А ехр {- В -t - (re - Г3)} хR2 (t) A exp {- B -t - (re - T3)} x
,2V, 2V
X sin ftfe (-1 - (Te - Г3),X sin ftfe (-1 - (Te - G3),
(5)(5)
которые поступают на входы квадраторов 14 и 15 соответственно. На выходах последних образуютс напр жени :which go to the inputs of the quadrants 14 and 15 respectively. At the outputs of the latter, voltages are formed:
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU5017333 RU2003944C1 (en) | 1991-11-27 | 1991-11-27 | Ultrasonic flowmeter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU5017333 RU2003944C1 (en) | 1991-11-27 | 1991-11-27 | Ultrasonic flowmeter |
Publications (1)
Publication Number | Publication Date |
---|---|
RU2003944C1 true RU2003944C1 (en) | 1993-11-30 |
Family
ID=21591959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU5017333 RU2003944C1 (en) | 1991-11-27 | 1991-11-27 | Ultrasonic flowmeter |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2003944C1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2696823C1 (en) * | 2018-10-31 | 2019-08-06 | Открытое акционерное общество "Авангард" | Ultrasonic sensor of gas and liquid fuel media flow rate |
-
1991
- 1991-11-27 RU SU5017333 patent/RU2003944C1/en active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2696823C1 (en) * | 2018-10-31 | 2019-08-06 | Открытое акционерное общество "Авангард" | Ultrasonic sensor of gas and liquid fuel media flow rate |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN111337902B (en) | Multi-channel high-repetition-frequency large-dynamic-range distance and speed measuring laser radar method and device | |
US3878525A (en) | Frequency jumping CW radar | |
US5164733A (en) | Phase shift detection for use in laser radar ranging systems | |
SE9300689D0 (en) | RADAR APPARATUS AND METHOD | |
RU2003944C1 (en) | Ultrasonic flowmeter | |
US3257638A (en) | Doppler navigation system | |
US4292635A (en) | Signal processing system | |
US2659079A (en) | Moving target radar system | |
US4449209A (en) | Utilization of entire transmitted bandwidth in continuous transmission FM sonar | |
CA2046952C (en) | Measuring device | |
RU2058033C1 (en) | Method for selecting moving targets | |
SU994929A1 (en) | Device for touch-free measuring of vibration rate | |
RU2062481C1 (en) | Method and device for determination of ship's speed over bottom | |
RU2236694C1 (en) | Radio-locating station for determining radial speed of target | |
RU97112590A (en) | DEVICE FOR MEASURING COORDINATES OF A ROTATING REACTIVE APPLIANCE | |
RU2072526C1 (en) | Device for determining ship speed relative to bottom | |
SU1141355A1 (en) | Ground speed determination device | |
SU718787A1 (en) | Method of determining flow rate components of liquid or gas | |
SU800931A1 (en) | Angle discriminator | |
SU820430A1 (en) | Device for measuring range and velocity of object | |
SU1256049A1 (en) | Analog fourier processor | |
JPH02170080A (en) | Distance limited type pulse doppler radar device | |
JPH0282184A (en) | Radar device | |
RU2083993C1 (en) | Air target identification radar set | |
RU2042146C1 (en) | Direction finder |