RU93032530A - METHOD FOR DETERMINING THE SPEED OF ULTRASOUND - Google Patents
METHOD FOR DETERMINING THE SPEED OF ULTRASOUNDInfo
- Publication number
- RU93032530A RU93032530A RU93032530/28A RU93032530A RU93032530A RU 93032530 A RU93032530 A RU 93032530A RU 93032530/28 A RU93032530/28 A RU 93032530/28A RU 93032530 A RU93032530 A RU 93032530A RU 93032530 A RU93032530 A RU 93032530A
- Authority
- RU
- Russia
- Prior art keywords
- pulses
- channel
- counting
- pulse
- speed
- Prior art date
Links
- 238000002604 ultrasonography Methods 0.000 title claims 3
- 230000001419 dependent Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
Claims (1)
при условии, что 0,1 ≤ m < 1, из него исключают n - младших разрядов, определяемых по формуле
где n - порядок числа; tи - время счета; c - скорость звука в среде; l - расстояние между пьезопреобразователями в контролируемом канале; m - мантисса числа, после чего определяют скорость ультразвука. Технический эффект: позволяет на несколько порядков повысить точность измерений скорости ультразвука.Use: to determine the functionally dependent ultrasonic parameters and indicators of liquid and gaseous media. The essence of the invention: in the proposed method, in a controlled channel, the mode of auto-circulation of electroacoustic pulses is established, and in the reference channel - a pulse mode of passing of electro-acoustic pulses while simultaneously exciting both channels, then from a pulse of autocirculation they form a sequence of reference electric pulses with a frequency of autocirculation and a sequence of electric pulses of the same frequency repetition, formed after the acoustic signal passes the reference channel, for it is used both for generating said sequences of the reference time interval equal to the propagation time of the acoustic pulse in the reference channel, counting high frequency pulses, which fill reference intervals during the measuring time interval, then after counting the total number of high frequency pulses, identified by the formula:
provided that 0,1 ≤ m <1, exclude n - low-order digits, determined by the formula
where n is the order of the number; t and - counting time; c is the speed of sound in the medium; l is the distance between piezoelectric transducers in a controlled channel; m is the mantissa of the number, and then determine the speed of ultrasound. Technical effect: allows to increase the accuracy of ultrasound velocity measurements by several orders of magnitude.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU93032530A RU2060474C1 (en) | 1993-06-22 | 1993-06-22 | Method of determination of ultrasound velocity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU93032530A RU2060474C1 (en) | 1993-06-22 | 1993-06-22 | Method of determination of ultrasound velocity |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU93032530A true RU93032530A (en) | 1996-01-20 |
| RU2060474C1 RU2060474C1 (en) | 1996-05-20 |
Family
ID=20143717
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU93032530A RU2060474C1 (en) | 1993-06-22 | 1993-06-22 | Method of determination of ultrasound velocity |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2060474C1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2464556C1 (en) * | 2011-06-15 | 2012-10-20 | Федеральное Государственное Автономное Образовательное Учреждение Высшего Профессионального Образования "Сибирский Федеральный Университет" | Method of measuring speed of ultrasound |
-
1993
- 1993-06-22 RU RU93032530A patent/RU2060474C1/en active
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