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Method for measuring flying torsional moment of insect and device

A torque measurement and insect technology, applied in measuring devices, force/torque/work measuring instruments, instruments, etc., can solve the problems of complex optical path, movement, and inconvenient observation of the fruit fly brain, etc., to achieve accurate measurement methods and simple structure , making easy effects

Inactive Publication Date: 2005-03-30
INSITUTE OF BIOPHYSICS CHINESE ACADEMY OF SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this type of device, the measuring mandrel is supported by a suspension wire, and the force generated by the insect's flight will cause the movement of the insect's body, which will affect the observation of the insect's brain nerve activity with electrodes or microscopes
In 1976, Carl Gates invented a device that uses infrared rays to measure the movement of insect wings. After calculation, the torque of insects can be measured. The optical path of this device is complicated, and it interferes with the light Louis of the microscope. Drosophila brain viewed from above

Method used

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  • Method for measuring flying torsional moment of insect and device
  • Method for measuring flying torsional moment of insect and device
  • Method for measuring flying torsional moment of insect and device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] like figure 1 As shown, the insect 1 is glued on the fixed rod 4, two miniature sound sensors 2, 3 are installed about 2 mm behind the body, the two miniature sound sensors 2, 3 are connected in series, the middle contact is grounded, and the lead wires at both ends are respectively connected to the The amplifiers 7 and 8 of the two circuits are electrically connected, and the two amplifiers 7 and 8 are electrically connected with the two detection circuits 9 and 10. The signals output by the detection circuits 9 and 10 are collected in the comparison circuit 11. After the comparison circuit 11 judges, The output signal, giving the measurement of torque for Drosophila 1. The measurements can be used for research or to compose other instrumentation systems such as flight simulators.

[0024] The beating of the wings of the insect 1 transmits the sound to the sound sensors 2 and 3, and the electric signal thereof is amplified and detected to obtain a sound amplitude sign...

Embodiment 2

[0028] like figure 2 As shown, the difference between the second embodiment and the first embodiment is: the sound pickup conduits 5,6 are installed on the sound sensors 2,3, and the others are all the same. At 2 millimeters behind the fruit fly 1, two sound pickup conduits 5 and 6 are installed at a distance of 4 millimeters. The front ends of the sound pickup conduits 5 and 6 have small holes with a diameter of about 2 millimeters, facing the left and right wings of the fruit fly 1 respectively. Miniature capacitive microphones (miniature sound sensors) 2,3 are installed in the sound conduit 5,6 afterbody, and the connection of miniature capacitive microphones 2,3 and the circuit is identical with embodiment one. The use of the sound pickup tubes 5 and 6 reduces the sound pickup structure behind the fruit fly 1, reduces the impact on the fruit fly 1, and the sound pickup is more directional, which can better separate the sounds of the left and right wings. Using this devic...

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Abstract

The invention relates to a measurement method and it device, in particular, it relates to a method for dynamically measuring insect flying torque and its device. Said device is composed of fixing bar, miniature sound sensor and circuit board, its fixing bar is placed over two miniature sound sensors, said two miniature sound sensors are series-connected, and intermediate connection point is earthed, lead-out wires of their two ends are respectively electrically connected with amplifiers of two detection circuits, the signals outputted from said two detection circuits are collected into comparision circuit, and said comprision circuit is connected with output end. Said invention also provides its measurement method and concrete steps.

Description

technical field [0001] The invention relates to a measuring method and a device, in particular to a method and a device for dynamically measuring insect flight torque. Background technique [0002] In the study of insect behavior, it is necessary to measure the flight torque of insects (drosophila) in real time, which can be used to study insect flight dynamics or form a fruit fly flight simulator system to study learning and memory. Insects fly with a torque of 10 -10 The order of magnitude of N.m, and the speed of change is fast, and it can be completed within 10 milliseconds from stationary to steering, so a torque measuring device with high sensitivity and fast response is required for measurement. [0003] In 1964, German scientist Carl Gates invented a device that directly measures the flight torque of houseflies by means of electromagnetic induction. In 1984, German engineer Wolff improved it to measure the flight torque of fruit flies. In this type of device, the m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/00G01L5/00
Inventor 唐世明
Owner INSITUTE OF BIOPHYSICS CHINESE ACADEMY OF SCIENCES
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