| 摘要 |
<p>A soil air-permeability measuring apparatus, comprising a detection module (1), a single-chip microcomputer (2), a storage and display module (3), a power supply module (4) and a control module (5); the detection module (1) detects and transmits a signal to the single-chip microcomputer (2); the single-chip microcomputer (2) converts the signal into data for calculation; the storage and display module (3) is in bidirectional data connection with the single-chip microcomputer (2), and stores and displays the data and calculation result transmitted by the single-chip microcomputer (2); the power supply module (4) supplies power for the detection module (1), the single-chip microcomputer (2) and the storage and display module (3); and the control module (5) controls the single-chip microcomputer (2) to receive the signal and transmit the data. The measuring apparatus of the present invention has the advantages of small size, low cost, portability and visual display, employs a single-chip microcomputer integrated with multiple analog/digital converters, is of simple circuit design and low power consumption, utilizes a liquid crystal screen to realize a more visual human-machine interface, can store the data of several measurements, and can, via a USB port, transmit the data to an upper computer for storage, display and analysis, thus facilitating field detection with a battery power supply mode.</p> |
