US 12,613,115 B2Granted

Method, use, and device for ultrasonic double-wave measurement of pre-tightening force and temperature of solid material

AssigneeLvyin Technology (Wuhan) Co., Ltd.

InventorsKun Li, Xuxiang Zhu, Yuping Shen

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Abstract

A method for the ultrasonic double-wave measurement includes: obtaining a first mode wave time-of-flight and a second mode wave time-of-flight of an ultrasonic double-wave of a solid material at a first temperature and stress state; measuring a first mode wave time and a second mode wave time of the ultrasonic double-wave of the solid material in an unknown state; obtaining a first mode wave temperature influence coefficient and a second mode wave temperature influence coefficient of the solid material, and a first mode wave pre-tightening force influence coefficient and a second mode wave pre-tightening force influence coefficient in the solid material to be measured having the same specification and geometric shape; and obtaining a relative change relationship of ultrasonic double-wave time-of-flight according to the first-order or second-order Taylor approximation, and jointly solving to obtain a measured pre-tightening force and a measured temperature.

Claims10

Dependent claims

A method for ultrasonic double-wave measurement of a pre-tightening force and temperature of a solid material, comprising the following steps:

S01:
obtaining a temperature T0 and pre-tightening force F0 of a solid material in a first state, and a first mode wave time-of-flight TS0 and a second mode wave time-of-flight TL0 of an ultrasonic double-wave in this state;
S02:
measuring a first mode wave time TS and a second mode wave time TL of the ultrasonic double-wave of the solid material in an unknown state;
S03:
obtaining a first mode wave temperature influence coefficient KTS and a second mode wave temperature influence coefficient KTL of the solid material, and a first mode wave pre-tightening force influence coefficient KFS and a second mode wave pre-tightening force influence coefficient KFL in the solid material to be measured having the same specification and geometric shape;
and
S04:
obtaining a relative change relationship of ultrasonic double-wave time-of-flight according to the first-order Taylor approximation as:
(
T
S
-
T
S
⁢
0
)
/
T
S
⁢
0
=
K
T
⁢
S
·
(
T
-
T
0
)
+
K
F
⁢
S
·
(
F
-
F
0
)
(
I
)
(
T
L
-
T
L0
)
/
T
L0
=
K
TL
·
(
T
-
T
0
)
+
K
FL
·
(
F
-
F
0
)
(
II
)
wherein, F is the measured pre-tightening force, and T is the measured temperature;
jointly solving the measured pre-tightening force F by means of formulas (I) and (II):
F
=
K
TL
(
T
S
-
T
S
⁢
0
)
/
T
S
⁢
0
-
K
TS
(
T
L
-
T
L
⁢
0
)
/
T
L
⁢
0
K
TL
⁢
K
FS
-
K
TS
⁢
K
FL
+
F
0
;
and
solving the measured temperature T:
T
=
K
F
⁢
L
(
T
S
-
T
S
⁢
0
)
/
T
S
⁢
0
-
K
F
⁢
S
(
T
L
-
T
L
⁢
0
)
/
T
L
⁢
0
K
TS
⁢
K
FL
-
K
TL
⁢
K
F
⁢
S
+
T
0
.

190 more elements

A device for ultrasonic double-wave measurement of a pre-tightening force and temperature of a solid material, comprising:

a data obtaining/measuring module, configured to obtain a temperature T0 and pre-tightening force F0 of a solid material in a first state, and a first mode wave time-of-flight TS0 and a second mode wave time-of-flight TL0 of an ultrasonic double-wave in this state;
a measuring module, configured to measure the first mode wave time TS and the second mode wave time TL of the ultrasonic double-wave of the solid material in an unknown state;
a parameter obtaining module, configured to obtain the first mode wave temperature influence coefficient KTS and the second mode wave temperature influence coefficient KTL of the solid material, and the first mode wave pre-tightening force influence coefficient KFS and the second mode wave pre-tightening force influence coefficient KFL in the solid material to be measured having the same specification and geometric shape;
and
a modeling and calculating module, configured to obtain a relative change relationship of ultrasonic double-wave time-of-flight according to the first-order Taylor approximation as:
(
T
S
-
T
S
⁢
0
)
/
T
S
⁢
0
=
K
T
⁢
S
·
(
T
-
T
0
)
+
K
F
⁢
S
·
(
F
-
F
0
)
(
I
)
(
T
L
-
T
L0
)
/
T
L0
=
K
TL
·
(
T
-
T
0
)
+
K
FL
·
(
F
-
F
0
)
(
II
)
wherein, F is the measured pre-tightening force, and T is the measured temperature;
jointly solve the measured pre-tightening force F by means of formulas (I) and (II):
F
=
K
TL
(
T
S
-
T
S
⁢
0
)
/
T
S
⁢
0
-
K
TS
(
T
L
-
T
L
⁢
0
)
/
T
L
⁢
0
K
TL
⁢
K
FS
-
K
TS
⁢
K
FL
+
F
0
;
and
solve the measured temperature T:
T
=
K
F
⁢
L
(
T
S
-
T
S
⁢
0
)
/
T
S
⁢
0
-
K
F
⁢
S
(
T
L
-
T
L
⁢
0
)
/
T
L
⁢
0
K
TS
⁢
K
FL
-
K
TL
⁢
K
F
⁢
S
+
T
0
.

186 more elements

Dependencies are inferred from the claim text.

Facts

Application: 18/291,688Filed 12 Nov 2021
Priority: CN 202110864700.529 Jul 2021
Published: US 2024/0240976 A118 Jul 2024
Granted: 28 Apr 2026
Term ends: Not estimatedThe source records don’t support an estimate.

Classification20 codes

G01D 21/02
Measuring or testing not otherwise provided for: measuring two or more variables by means not covered by a single other subclass
G01K 3/06
Giving means values; giving integrated values: in respect of space
G01K 11/24
Using measurement of acoustic effects: of the velocity of propagation of sound
G01L 1/255
Using wave or particle radiation, e.g. X-rays , microwaves, neutrons: using acoustic waves, or acoustic emission