{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,14]],"date-time":"2025-10-14T20:13:55Z","timestamp":1760472835430,"version":"build-2065373602"},"reference-count":29,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2020,6,7]],"date-time":"2020-06-07T00:00:00Z","timestamp":1591488000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100012226","name":"Fundamental Research Funds for the Central Universities","doi-asserted-by":"publisher","award":["2015ZCQ-GX-04"],"award-info":[{"award-number":["2015ZCQ-GX-04"]}],"id":[{"id":"10.13039\/501100012226","id-type":"DOI","asserted-by":"publisher"}]},{"name":"National Nature Science Foundation of China","award":["31670719"],"award-info":[{"award-number":["31670719"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>Analysis of a tree ring is the primary method for determining the growth and age of a tree. In a microdestructive tree-ring measurement system, the tree under test is drilled with a microdrill at a constant rotating speed to detect the difference in density between the early and late wood, thereby realizing a microdestructive measurement of the tree-ring. The measurement system comprises a microdrill with a diameter of 3 mm, mechanical transmission, direct current (DC) servomotor, stepper motor, and control and detection circuit. The DC servomotor and stepper motor realize rotation and translation of the microdrill, respectively, through mechanical transmission. When the microdrill rotates and drills into the tree, the control and detection circuit samples and acquires the armature current of the DC servomotor, which is proportional to the resistance encountered by the drill bit and reflects the change in the density of the tree. The tree-ring number can be obtained by filtering the sampled original signals of the armature current using a finite impulse response (FIR) filtering algorithm. The annual rings of larch and fir tree discs were measured and tested using the designed system. It was observed that the average annual ring measurement accuracy of the larch discs reached 95.28%, while that of the fir discs was 84.16%. The diameter of the drill hole in the trunk was less than 3 mm after measuring the living wood, thereby achieving a microdestructive measurement of the tree-ring.<\/jats:p>","DOI":"10.3390\/s20113253","type":"journal-article","created":{"date-parts":[[2020,6,9]],"date-time":"2020-06-09T06:34:16Z","timestamp":1591684456000},"page":"3253","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Design and Test of a Microdestructive Tree-Ring Measurement System"],"prefix":"10.3390","volume":"20","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-6716-2149","authenticated-orcid":false,"given":"Xueyang","family":"Hu","sequence":"first","affiliation":[{"name":"School of Technology, Beijing Forestry University, Beijing 100083, China"},{"name":"Beijing Laboratory of Urban and Rural Ecological Environment, Beijing 100083, China"},{"name":"Key Lab of State Forestry Administration for Forestry Equipment and Automation, Beijing 10083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yili","family":"Zheng","sequence":"additional","affiliation":[{"name":"School of Technology, Beijing Forestry University, Beijing 100083, China"},{"name":"Beijing Laboratory of Urban and Rural Ecological Environment, Beijing 100083, China"},{"name":"Key Lab of State Forestry Administration for Forestry Equipment and Automation, Beijing 10083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9540-4627","authenticated-orcid":false,"given":"Hao","family":"Liang","sequence":"additional","affiliation":[{"name":"School of Technology, Beijing Forestry University, Beijing 100083, China"},{"name":"Beijing Laboratory of Urban and Rural Ecological Environment, Beijing 100083, China"},{"name":"Key Lab of State Forestry Administration for Forestry Equipment and Automation, Beijing 10083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yandong","family":"Zhao","sequence":"additional","affiliation":[{"name":"School of Technology, Beijing Forestry University, Beijing 100083, China"},{"name":"Beijing Laboratory of Urban and Rural Ecological Environment, Beijing 100083, China"},{"name":"Key Lab of State Forestry Administration for Forestry Equipment and Automation, Beijing 10083, China"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2020,6,7]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"63","DOI":"10.3959\/1536-1098-74.1.63","article-title":"Climatic Signal in Earlywood and Latewood in Conifer Forests in the Monarch Butterfly Biosphere Reserve","volume":"74","author":"Teodoro","year":"2018","journal-title":"Tree Ring Res."},{"key":"ref_2","first-page":"32","article-title":"Dendroclimatological analysis and tree-ring growth prediction of Quercus mongolica","volume":"16","author":"Na","year":"2020","journal-title":"For. 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