CN-224231794-U - High-precision triaxial acceleration sensing device

Abstract

The utility model discloses a high-precision triaxial acceleration sensor which comprises an installation carrier and three single-shaft paper-based acceleration sensors, wherein an installation assembly is arranged in the installation carrier and comprises an inner fixing frame, three fixing plates, a threaded sleeve, locking screws, a locking plate, two guide posts and an installation through hole, and the three fixing plates are respectively and fixedly connected to the inner part of the inner fixing frame. According to the utility model, the internal fixing frame, the fixing plate and other structures are arranged in the mounting carrier, so that the integral rigidity of the sensor is enhanced, and during mounting, the single-shaft paper-based acceleration sensor can be locked and fixed through the matching of the locking plate and the fixing plate, the position stability of the single-shaft paper-based acceleration sensor is ensured, the condition of measuring data deviation is avoided, and the accuracy of the sensor is improved.

Inventors

• WANG YAOBIN
• BAI CHENGCHUN
• Zhang Lieai

Assignees

• 北京神州翔宇技术有限公司

Dates

Publication Date

20260512

Application Date

20250801

Claims (8)

1. 1. The high-precision triaxial acceleration sensing device is characterized by comprising a mounting carrier (40) and three single-axis paper-based acceleration sensors (30), wherein a mounting assembly (101) is arranged in the mounting carrier (40), and the mounting assembly (101) comprises an inner fixing frame (11), three fixing plates (12), a threaded sleeve (13), locking screws (14), a locking plate (15), two guide posts (16) and a mounting through hole (17); Three fixed plate (12) are fixed connection respectively in the inside of internal fixation frame (11), screw sleeve (13) fixed connection is in the lateral wall of locking board (15), installation through-hole (17) are seted up in the inside of fixed plate (12) and locking board (15) and correspond with screw sleeve (13) position, two guide post (16) symmetry fixed connection is on fixed plate (12), locking board (15) sliding connection is in the lateral wall of two guide post (16), unipolar paper-based acceleration sensor (30) laminating is in the opposite face of locking board (15) and fixed plate (12), locking screw (14) run through installation through-hole (17) and threaded connection in the inside of screw sleeve (13).
2. 2. The high-precision triaxial acceleration sensing device according to claim 1, characterized in that anti-slip patterns (19) are formed on opposite surfaces of the locking plate (15) and the fixing plate (12).
3. 3. The high-precision triaxial acceleration sensing device according to claim 2, characterized in that the inner fixing frame (11) is fixedly connected to the inside of the mounting carrier (40), and three adjacent planes of the mounting carrier (40) are provided with open slots (41).
4. 4. A high precision triaxial acceleration sensor according to claim 3, characterized in that three of the single-axis paper-based acceleration sensors (30) are located on three adjacent planes of the mounting carrier (40) and in open slots (41).
5. 5. The high-precision triaxial acceleration sensor according to claim 4, characterized in, that the bottom of the mounting carrier (40) is provided with an output through hole (42).
6. 6. The high-precision triaxial acceleration sensor device according to claim 1, characterized in that the uniaxial paper-based acceleration sensor (30) comprises a mass (31), a paper-based carrier (32), a carbon film resistor (33), a signal transfer part (35) and a signal output part (36); The mass block (31) is arranged at the end part of the paper-based carrier (32), the carbon film resistor (33) and the signal switching part (35) are arranged on the paper-based carrier (32), and the signal switching part (35) is electrically connected with the carbon film resistor (33) and the signal output part (36).
7. 7. The high-precision triaxial acceleration sensor according to claim 6, characterized in that a fixing portion (37) is fixed at the other end of the paper-based carrier (32), and two U-shaped positioning grooves (34) are formed in the fixing portion (37).
8. 8. The high-precision triaxial acceleration sensing device according to claim 7, characterized in that the fixing portion (37) is located between the locking plate (15) and the fixing plate (12), and the guide post (16) is located inside the U-shaped positioning groove (34).

Description

High-precision triaxial acceleration sensing device Technical Field The utility model relates to an acceleration sensing device, in particular to a high-precision triaxial acceleration sensing device, and belongs to the technical field of acceleration sensors. Background The acceleration sensor is a high-sensitivity device capable of measuring acceleration change of the surrounding environment, and is also an important part in the application fields of automobile safety, intelligent products, GPS navigation, aviation and the like. The device mainly uses silicon as a base material, consists of a mass block, an elastic element, a damper, a sensitive element, an adaptive circuit and the like, converts acceleration signals into corresponding electric signals, and can be applied to measurement of multi-directional acceleration. The known China authorized utility model (bulletin number: CN 209198491U) discloses a multi-axis paper-based acceleration sensor, which is formed by respectively arranging single-axis paper-based acceleration sensors in three directions on three adjacent planes of a paper-based mounting carrier to form a three-axis paper-based acceleration sensor (X axis, Y axis and Z axis), wherein the acceleration sensor utilizes the characteristic that the paper-based is easy to fold and deform, can reduce the difficulty of a preparation process and the environmental protection characteristic of the paper-based, reduces the cost on the premise that the sensitivity of the paper-based acceleration sensor is not influenced compared with the traditional silicon-based acceleration sensor, and meanwhile, the cost is not polluted, and is green and environment-friendly; compared with the traditional silicon-based sensor, the sensor has obvious advantages in the aspect of green environmental protection, however, the adopted paper-based structure also has a short board which cannot be ignored, the strength and the hardness of the paper-based structure are relatively low, a plurality of inconveniences are brought to the installation of the sensor, the sensor is easy to damage due to the action of external force in the installation process, and a proper installation mode is difficult to find to ensure the structural stability of the sensor, so that the deviation of measurement data can be caused, and the measurement precision is influenced. Disclosure of utility model The present utility model is directed to a high-precision triaxial acceleration sensor device, which solves one of the problems set forth in the background art. The high-precision triaxial acceleration sensing device comprises a mounting carrier and three single-axis paper-based acceleration sensors, wherein a mounting assembly is arranged in the mounting carrier and comprises an inner fixing frame, three fixing plates, a threaded sleeve, locking screws, a locking plate, two guide posts and a mounting through hole; The three fixed plates are respectively and fixedly connected to the inside of the inner fixed frame, the threaded sleeve is fixedly connected to the outer side wall of the locking plate, the installation through holes are formed in the inside of the fixed plate and the locking plate and correspond to the positions of the threaded sleeve, the two guide posts are symmetrically and fixedly connected to the fixed plate, the locking plate is slidably connected to the outer side walls of the two guide posts, the single-shaft paper-based acceleration sensor is attached to the opposite surface of the locking plate and the fixed plate, and the locking screw penetrates through the installation through holes and is in threaded connection with the inside of the threaded sleeve. As a further preferable mode of the technical scheme, anti-skid patterns are formed on the opposite surfaces of the locking plate and the fixing plate. As a further preferable mode of the technical scheme, the inner fixing frame is fixedly connected to the inside of the installation carrier, and three adjacent planes of the installation carrier are provided with open slots. As a further preferred aspect of the present invention, three of the single-axis paper-based acceleration sensors are located on three adjacent planes of the mounting carrier and in the open slot. As a further preferable mode of the technical scheme, the bottom of the mounting carrier is provided with an output through hole. As a further preferred aspect of the present invention, the uniaxial paper-based acceleration sensor includes a mass block, a paper-based carrier, a carbon film resistor, a signal transfer part, and a signal output part; the mass block is arranged at the end part of the paper-based carrier, the carbon film resistor and the signal transfer part are arranged on the paper-based carrier, and the signal transfer part is electrically connected with the carbon film resistor and the signal output part. As a further preferable mode of the technical scheme, the other end of the paper-based carrie