US 11,796,554 B2
Integrated acceleration, speed and vibration sensor
Zhongshan Tian, Beijing (CN); Xianzhong Wang, Guangzhou (CN); Lin Yi, Guangzhou (CN); Changqun Yang, Guangzhou (CN); Daodong Niu, Guangzhou (CN); and Jiaming Liang, Guangzhou (CN)
Assigned to China Oil & Gas Pipeline Network Corporation, Beijing (CN); and South China Company, China Oil & Gas Pipeline Network Corporation, Guangzhou (CN)
Filed by China Oil & Gas Pipeline Network Corporation, Beijing (CN); and South China Company, China Oil & Gas Pipeline Network Corporation, Guangzhou (CN)
Filed on Mar. 28, 2022, as Appl. No. 17/705,459.
Claims priority of application No. 2021110562556 (CN), filed on Sep. 9, 2021.
Prior Publication US 2022/0229082 A1, Jul. 21, 2022
Int. Cl. G01P 1/04 (2006.01); G01P 1/02 (2006.01); H01C 7/12 (2006.01)
CPC G01P 1/04 (2013.01) [G01P 1/023 (2013.01); G01P 1/026 (2013.01); H01C 7/12 (2013.01)] 5 Claims
OG exemplary drawing
 
1. A sensor, comprising a housing, a circuit board, and a base;
wherein the housing is mounted on the base, the circuit board is mounted in the housing;
wherein the circuit board comprises:
an accelerometer configured to output a first signal representing acceleration of the accelerometer along a direction;
a first positive phase proportional amplifier configured to output a second signal by amplifying the first signal;
an integrator configured to output a third signal by integrating the first signal;
a second positive phase proportional amplifier configured to output a fourth signal by amplifying the third signal;
a low-pass filter configured to output a fifth signal by performing low-pass filtering on the fourth signal;
an RMS-to-DC converter configured to output a sixth signal representing a root-mean-square (RMS) of the fifth signal;
a third positive phase proportional amplifier configured to output a seventh signal by amplifying the sixth signal, wherein the seventh signal represents velocity of the accelerometer along the direction.