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Electric quantity identification and rigidity screening coupled sensing method and sensing system thereof

A technology of sensing system and sensing method, which is applied in the field of power identification and stiffness screening sensing, and can solve the problem of not finding a composite sensor, etc.

Active Publication Date: 2020-08-25
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, no composite sensor has been found to satisfy the sensing of these two characteristics of objects at the same time.

Method used

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  • Electric quantity identification and rigidity screening coupled sensing method and sensing system thereof
  • Electric quantity identification and rigidity screening coupled sensing method and sensing system thereof
  • Electric quantity identification and rigidity screening coupled sensing method and sensing system thereof

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Embodiment Construction

[0046] The present invention will be further elaborated below through specific embodiments in conjunction with the accompanying drawings.

[0047] Such as figure 1As shown, the coupled sensor system of the present invention for electric quantity identification and stiffness screening of the present embodiment includes: a coupling identification probe, a voltage follower circuit, a low-pass filter circuit, an operational amplifier circuit, a microprocessor, a voltage comparison circuit and a display device ; The coupling identification probe, the voltage follower circuit, the low-pass filter circuit, the operational amplifier circuit, the microprocessor and the display device are sequentially connected, and the microprocessor is also connected to the voltage comparison circuit.

[0048] Such as figure 2 As shown in (a), the coupling identification probe includes a front electrode 1, a rear electrode 2, a piezoelectric electret film 3 and a resistor R; Deformation; the rear e...

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Abstract

The invention discloses an electric quantity identification and rigidity screening coupled sensing method and a sensing system thereof. The method comprises: using the electrostatic induction and thenear field effect of the piezoelectric electret, and improving the charged quantity recognition sensitivity or rigidity judgment sensitivity through the single-layer or double-layer piezoelectric electret film; the front-end electrode being of a spherical vault structure with fixed threshold rigidity, and if the rigidity of the target object is larger than the threshold rigidity of the front-end electrode, the front-end electrode can generate nonlinear buckling, and generating a high-pulse narrow-deformation electric signal. Therefore, the rigidity of the object can be directly screened without measuring the contact force and the deformation of the object. On one structure, charged quantity measurement and threshold rigidity discrimination of a target are realized at the same time. Furthermore, front-end electrodes with different rigidities are arranged in an array manner, so that charged quantity distribution identification of the object can be realized, and the rigidity range of theobject can be judged with higher precision. The system has the characteristics of high sensitivity, coupling identification, rigidity screening, arraying, high integration degree, small size and the like.

Description

technical field [0001] The invention relates to electric quantity identification and stiffness screening sensing technology, in particular to a coupled sensing system for electric quantity identification and stiffness screening and a sensing method thereof. Background technique [0002] Robotic intelligent manipulators need to wear advanced micro-sensors to better complete fine-grained tasks, including: object recognition, grasping and other operations. In the above tasks, tactile sensors are usually equipped to detect the temperature, shape, surface roughness, surface humidity, electrification characteristics, and stiffness of objects. [0003] The space environment is filled with a large number of charged meteoroids, and its surface voltage can reach up to several thousand volts. It is easy to generate discharge and damage circuit equipment when it comes into contact with equipment. Therefore, it is necessary to judge the charge of the target object in advance before the m...

Claims

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Application Information

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IPC IPC(8): G01R29/24G01B7/16B25J9/16
CPCB25J9/16B25J9/1602B25J9/1694G01B7/18G01R29/24
Inventor 冯跃周子隆韩炎晖胡佳辰
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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