Clamping device for plant leaf surface physical parameter detection sensor

Abstract

The invention discloses a clamping device for a plant leaf surface physical parameter detection sensor, aiming to overcome defects that existing clamping devices are large in size, inconvenient to carry and narrow in application range. A stepped through hole for holding a magnet is formed at the center of an upper clamping plate, a rectangular groove is formed at one end of the upper clamping plate, the depth of the stepped thorough hole is larger than the thickness of the magnet, the stepped through hole is sealed by a magnet cover plate, one side of the stepped through hole, close to the rectangular groove, is in the shape of a semi-dovetail groove, and a trapezoidal clamping block is regulated in the rectangular groove freely by screws, and matches with the semi-dovetail groove to fix the physical parameter acquisition sensor. Besides, an elongated slot is formed at the other end of the upper clamping plate and used for mounting a USB (universal serial bus) connector, and is communicated with a wiring slot on the inner side of the upper clamping plate, and the USB connector is in signal connection with the physical parameter acquisition sensor through a signal line in the wiring slot. By the clamping device, the sensor can be fixed reliably, measurement precision of leaf thermometers is improved, and damages to measured objects can be reduced to the utmost extent.

Description

technical field [0001] The invention relates to a sensor clamping device of a plant leaf surface physical parameter detector, relates to a test and measurement technology of a plant leaf temperature real-time detector, and particularly relates to a kind of tobacco leaf which is easy to be damaged during the baking process and has a leaf moisture The clamping temperature measurement technology of the measured object whose parameters such as thickness and thickness are constantly changing. Background technique [0002] Tobacco leaf curing technology is a crucial technical link in the production of high-quality tobacco leaves. The detection and control of the tobacco leaf surface and the temperature and humidity of the tobacco room are the prerequisites for improving the curing technology. Aiming at the present situation that the tobacco leaf curing temperature and humidity measuring instrument cannot directly measure the surface temperature of the tobacco leaf and has low meas...

AI Technical Summary

Problems solved by technology

If such a fixture is used to clamp a relatively small, unbreakable and stable object to be measured, it is more feasible, but if it is used to clamp a measured object such as tobacco leaves, the volume of the fixture needs to be increased. In a changing state, the control of the clamping force is also an important factor. Finally, the tobacco leaves are easily damaged when they are dried and cannot bear a large weight. Larger size, extremely inconvenient to carry and install, narrow range of use

There is also a prominent disadvantage of the clamp clamp, that is, if the design of the clamp is not suitable, the front end is prone to open when clamping the object to be measured, so that the sensor cannot reliably contact the surface of the object to be measured, which affects the measurement accuracy of the measuring instrument

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