A kind of small soil-dwelling animal digging force testing device and testing method
A test device and small animal technology, which can be applied in the measurement of the change force of the optical properties of the material when it is stressed, and the adaptation to climate change, etc. Difficulty and the effect of improving test accuracy
Active Publication Date: 2022-07-08
TIANJIN UNIV OF SCI & TECH
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Problems solved by technology
The strain gauge method uses a bridge composed of strain gauges to convert the deformation caused by organisms on the strain gauges into force. However, the strain gauge method needs to arrange strain gauges at specific parts of the excavation position, which is cumbersome to use and calibrate.
Method used
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[0052] like Figure 9 The middle digging force-time curve shows an example of the digging force of the mole cricket tested by the small soil-dwelling animal digging force test device. It can be seen from the figure that the forefoot of the mole cricket touches the force-bearing slider at about 0ms, and starts to dig. At about 700ms, the digging force collected by the sensor reached the peak value, indicating that the forefoot of the mole cricket was fully extended at this time, and at about 1200ms, the forefoot of the mole cricket was fully retracted, and one digging action was over, and the test was completed. Depend on Figure 9 It can be shown that for small soil-dwelling animals, the digging force testing device and the digging force testing method of the present invention can be used to measure and record the digging force in the digging process in real time. It plays a guiding role in researching engineering bionics.
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The invention discloses a small soil-dwelling animal digging force testing device, which comprises a test-bed bottom plate, a sensor bracket, a sensor, a force-receiving device and a test channel. A test channel is fixedly installed at the upper central position of the test-bed bottom plate, and two sides of the test channel are fixedly installed. Symmetrically install the sensor bracket, install the sensor on the sensor bracket, the sensor bracket is made of X-axis bracket, Y-axis bracket, Z-axis bracket can be adjusted and installed; Install the force-bearing device on the side of the test channel at the lower end of the sensor. The device and method for testing the digging force of small soil-dwelling animals of the present invention provide a set of methods for testing the digging force of small soil-dwelling animals, which can measure and record the digging force in the digging process in real time and simultaneously record its digging action, and has important biological functions. and bionics research value.
Description
technical field [0001] The invention provides a bionic mechanics test device, in particular to a test device and a test method for measuring the digging force of small soil-dwelling animals. Background technique [0002] In order to adapt to the underground environment, small soil-dwelling animals have evolved excellent soil excavation functions, such as earthworms, dung beetles, mole crickets, voles, etc. The configuration, shape, structure and movement pattern of their bodies or some organs can be used for underground excavation equipment. Design provides a source of bionic inspiration. Among them, the digging force test equipment designed for small soil-dwelling animals is an important part of engineering bionics research and has important biological and engineering significance. [0003] Animal digging is divided into digging force measurement and digging motion measurement. The measurement methods of biological force mainly include photoelastic analysis method, MEMS (...
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IPC IPC(8): G01L1/24
CPCG01L1/24Y02A40/70
Inventor 张琰张峻霞张鹏涛王新亭苏海龙
Owner TIANJIN UNIV OF SCI & TECH