ZA961374B - Method and apparatus for monitoring soil compaction - Google Patents
Method and apparatus for monitoring soil compactionInfo
- Publication number
- ZA961374B ZA961374B ZA961374A ZA961374A ZA961374B ZA 961374 B ZA961374 B ZA 961374B ZA 961374 A ZA961374 A ZA 961374A ZA 961374 A ZA961374 A ZA 961374A ZA 961374 B ZA961374 B ZA 961374B
- Authority
- ZA
- South Africa
- Prior art keywords
- soil compaction
- monitoring soil
- monitoring
- compaction
- soil
- Prior art date
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D3/00—Improving or preserving soil or rock, e.g. preserving permafrost soil
- E02D3/02—Improving by compacting
- E02D3/026—Improving by compacting by rolling with rollers usable only for or specially adapted for soil compaction, e.g. sheepsfoot rollers
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/235—Rolling apparatus designed to roll following a path other than essentially linear, e.g. epicycloidal
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/22—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/288—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Agronomy & Crop Science (AREA)
- Soil Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
- Road Paving Machines (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GBGB9504345.1A GB9504345D0 (en) | 1995-03-03 | 1995-03-03 | Method and apparatus for monitoring soil compaction |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA961374B true ZA961374B (en) | 1996-08-28 |
Family
ID=10770623
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA961374A ZA961374B (en) | 1995-03-03 | 1996-02-21 | Method and apparatus for monitoring soil compaction |
Country Status (11)
Country | Link |
---|---|
US (2) | US6004076A (ja) |
EP (1) | EP0813635B1 (ja) |
JP (1) | JP3585929B2 (ja) |
CN (1) | CN1087375C (ja) |
AU (1) | AU698714B2 (ja) |
CA (1) | CA2214753C (ja) |
DE (1) | DE69602829T2 (ja) |
ES (1) | ES2135213T3 (ja) |
GB (1) | GB9504345D0 (ja) |
WO (1) | WO1996027713A1 (ja) |
ZA (1) | ZA961374B (ja) |
Families Citing this family (88)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6843615B1 (en) * | 1998-11-09 | 2005-01-18 | Compaction Technology (Soil) Limited | Compaction roller |
US6485227B1 (en) * | 1999-10-05 | 2002-11-26 | R And G Construction Co. | Concrete breaking apparatus |
US6321153B1 (en) * | 2000-06-09 | 2001-11-20 | Caterpillar Inc. | Method for adjusting a process for automated bucket loading based on engine speed |
WO2001088529A1 (en) * | 2001-05-15 | 2001-11-22 | Industry Advocates, Inc. | Monitoring fill soil via compactor rolling resistance |
US6558072B2 (en) | 2001-05-15 | 2003-05-06 | Caterpillar Paving Products Inc. | Speed control system for a work machine |
US6623207B2 (en) * | 2001-06-07 | 2003-09-23 | Kmc Enterprises, Inc. | Method of upgrading gravel and/or dirt roads and a composite road resulting therefrom |
JP4669173B2 (ja) * | 2001-09-05 | 2011-04-13 | 酒井重工業株式会社 | 振動型締固め車両における締固め度管理装置 |
US20050129467A1 (en) * | 2002-07-01 | 2005-06-16 | Compaction Technology (Soil) Ltd. | Drop mass compaction of soil |
US6719485B1 (en) * | 2002-08-05 | 2004-04-13 | Scott R. Roth | Compaction roller and method for rubblizing concrete |
US20080004809A1 (en) * | 2002-09-16 | 2008-01-03 | Earthwork Solutions, Inc. | Engineering design and construction of earthen fills |
US6879899B2 (en) | 2002-12-12 | 2005-04-12 | Caterpillar Inc | Method and system for automatic bucket loading |
US20050100417A1 (en) * | 2003-11-07 | 2005-05-12 | Geopartner Sp. Z O.O | Method of deep soil compacting from a surface |
US7455476B2 (en) * | 2003-12-18 | 2008-11-25 | Kmc Enterprises, Inc. | Method of reconstructing a bituminous-surfaced pavement |
US7428455B2 (en) * | 2004-10-12 | 2008-09-23 | Caterpillar Inc. | Compaction indication by effective rolling radius |
ATE420999T1 (de) * | 2004-11-29 | 2009-01-15 | Compaction Technology Propriet | Fallgewichts-bodenverdichtungsvorrichtung |
US7555855B2 (en) * | 2005-03-31 | 2009-07-07 | Caterpillar Inc. | Automatic digging and loading system for a work machine |
WO2006128033A1 (en) * | 2005-05-25 | 2006-11-30 | University Of Florida Research Foundation, Inc. | Devices, systems, and methods for measuring and controlling compactive effort delivered to a soil by a compaction unit |
US20070150147A1 (en) * | 2005-12-23 | 2007-06-28 | Rasmussen Terry L | Compactor using compaction value targets |
US20070239338A1 (en) * | 2006-04-06 | 2007-10-11 | Dean Potts | Worksite preparation method using compaction response and mapping information |
GB2437960B (en) | 2006-05-08 | 2008-08-13 | Aqs Holdings Ltd | Ground engineering method |
US7979181B2 (en) | 2006-10-19 | 2011-07-12 | Caterpillar Inc. | Velocity based control process for a machine digging cycle |
DE202006020680U1 (de) * | 2006-10-25 | 2009-09-03 | Wacker Neuson Se | Bodenverdichtungssystem mit positionsbezogener Dokumentation von Maschinen- und Verdichtungsdaten |
US20080267719A1 (en) * | 2007-04-24 | 2008-10-30 | Caterpillar Inc. | Towed compaction determination system utilizing drawbar force |
US8116950B2 (en) * | 2008-10-07 | 2012-02-14 | Caterpillar Inc. | Machine system and operating method for compacting a work area |
KR101065468B1 (ko) * | 2009-11-30 | 2011-09-19 | 한국건설기술연구원 | 지반의 다짐정도 평가방법 및 다짐정도 평가지표 측정 연산 장치 |
DE102010052243A1 (de) * | 2010-11-23 | 2012-05-24 | Wacker Neuson Produktion GmbH & Co. KG | Stampfvorrichtung mit Synchronisationseinrichtung und Verfahren dafür |
CN102445529B (zh) * | 2011-09-30 | 2015-09-16 | 昆明理工大学 | 一种土壤压实度测试装置 |
DE102011088567A1 (de) * | 2011-12-14 | 2013-06-20 | Hamm Ag | Vorrichtung zur Erfassung der Bewegung einer Verdichterwalze eines Bodenverdichters |
DE102012200557A1 (de) * | 2012-01-16 | 2013-07-18 | Hamm Ag | Verdichterwalze für einen Bodenverdichter |
CN102561154B (zh) * | 2012-03-13 | 2014-07-09 | 三一集团有限公司 | 压实作业辅助装置、压实作业辅助方法和压路机 |
WO2014162261A1 (en) * | 2013-04-02 | 2014-10-09 | Roger Arnold Stromsoe | A soil compaction system and method |
DE102013220962A1 (de) | 2013-10-16 | 2015-04-30 | Hamm Ag | Vorrichtung und Verfahren zur Ermittlung einer einen Kontaktzustand einer Verdichterwalze mit zu verdichtendem Untergrund repräsentierenden Aufstandsgröße |
US9534995B2 (en) | 2014-06-11 | 2017-01-03 | Caterpillar Paving Products Inc. | System and method for determining a modulus of resilience |
US20160168806A1 (en) * | 2014-12-12 | 2016-06-16 | Caterpillar Inc. | System and method for determining ground stiffness |
CN106149670B (zh) * | 2015-03-23 | 2018-09-04 | 徐工集团工程机械股份有限公司 | 夯实度传感器和强夯机以及夯实度检测方法 |
CN105002810B (zh) * | 2015-06-01 | 2017-03-15 | 清华大学 | 一种智能碾压机器人 |
EP3353351B1 (en) * | 2015-09-25 | 2020-04-29 | Roger Arnold Stromsoe | Impact compactor |
CN106480873B (zh) * | 2015-11-09 | 2018-09-04 | 徐工集团工程机械股份有限公司 | 强夯机自动控制系统和方法 |
WO2017095239A1 (en) * | 2015-12-04 | 2017-06-08 | Pavement Analytics Limited | A method and system for measuring deformation of a surface |
US20170211245A1 (en) | 2016-01-21 | 2017-07-27 | Diamond Surface, Inc. | Reduced volume sonic noise alert pattern grinder & method |
USD803272S1 (en) * | 2016-01-21 | 2017-11-21 | Diamond Surface, Inc. | Lobed control wheel |
DE102016009086A1 (de) * | 2016-07-26 | 2018-02-01 | Bomag Gmbh | Handgeführte Bodenverdichtungsmaschine, insbesondere Vibrationsstampfer oder Vibrationsplatte |
CN107219300B (zh) * | 2017-05-23 | 2019-09-03 | 徐工集团工程机械股份有限公司 | 一种基于相关度的压实度随车检测系统 |
CN108646755A (zh) * | 2018-07-03 | 2018-10-12 | 清华大学 | 一种土石方智能碾压系统 |
US11131614B2 (en) * | 2018-07-18 | 2021-09-28 | Caterpillar Paving Products Inc. | Autonomous compaction testing systems and methods |
US11641800B2 (en) | 2020-02-06 | 2023-05-09 | Deere & Company | Agricultural harvesting machine with pre-emergence weed detection and mitigation system |
US11178818B2 (en) | 2018-10-26 | 2021-11-23 | Deere & Company | Harvesting machine control system with fill level processing based on yield data |
US11653588B2 (en) | 2018-10-26 | 2023-05-23 | Deere & Company | Yield map generation and control system |
US11957072B2 (en) | 2020-02-06 | 2024-04-16 | Deere & Company | Pre-emergence weed detection and mitigation system |
US12069978B2 (en) | 2018-10-26 | 2024-08-27 | Deere & Company | Predictive environmental characteristic map generation and control system |
US11240961B2 (en) | 2018-10-26 | 2022-02-08 | Deere & Company | Controlling a harvesting machine based on a geo-spatial representation indicating where the harvesting machine is likely to reach capacity |
US11589509B2 (en) | 2018-10-26 | 2023-02-28 | Deere & Company | Predictive machine characteristic map generation and control system |
US11672203B2 (en) | 2018-10-26 | 2023-06-13 | Deere & Company | Predictive map generation and control |
US11467605B2 (en) | 2019-04-10 | 2022-10-11 | Deere & Company | Zonal machine control |
US11079725B2 (en) | 2019-04-10 | 2021-08-03 | Deere & Company | Machine control using real-time model |
US11234366B2 (en) | 2019-04-10 | 2022-02-01 | Deere & Company | Image selection for machine control |
US11778945B2 (en) | 2019-04-10 | 2023-10-10 | Deere & Company | Machine control using real-time model |
US12035648B2 (en) | 2020-02-06 | 2024-07-16 | Deere & Company | Predictive weed map generation and control system |
US11477940B2 (en) | 2020-03-26 | 2022-10-25 | Deere & Company | Mobile work machine control based on zone parameter modification |
CN111441221B (zh) * | 2020-04-10 | 2022-06-03 | 蒋利科 | 一种冲击压路机 |
CN111474029B (zh) * | 2020-05-19 | 2022-06-14 | 重庆交通大学 | 一种路基碎石土动态回弹模量预估方法 |
US11889788B2 (en) | 2020-10-09 | 2024-02-06 | Deere & Company | Predictive biomass map generation and control |
US12013245B2 (en) | 2020-10-09 | 2024-06-18 | Deere & Company | Predictive map generation and control system |
US11474523B2 (en) | 2020-10-09 | 2022-10-18 | Deere & Company | Machine control using a predictive speed map |
US11927459B2 (en) | 2020-10-09 | 2024-03-12 | Deere & Company | Machine control using a predictive map |
US11871697B2 (en) | 2020-10-09 | 2024-01-16 | Deere & Company | Crop moisture map generation and control system |
US11946747B2 (en) | 2020-10-09 | 2024-04-02 | Deere & Company | Crop constituent map generation and control system |
US11650587B2 (en) | 2020-10-09 | 2023-05-16 | Deere & Company | Predictive power map generation and control system |
US11825768B2 (en) | 2020-10-09 | 2023-11-28 | Deere & Company | Machine control using a predictive map |
US11845449B2 (en) | 2020-10-09 | 2023-12-19 | Deere & Company | Map generation and control system |
US11635765B2 (en) | 2020-10-09 | 2023-04-25 | Deere & Company | Crop state map generation and control system |
US11864483B2 (en) | 2020-10-09 | 2024-01-09 | Deere & Company | Predictive map generation and control system |
US11895948B2 (en) | 2020-10-09 | 2024-02-13 | Deere & Company | Predictive map generation and control based on soil properties |
US11874669B2 (en) | 2020-10-09 | 2024-01-16 | Deere & Company | Map generation and control system |
US11983009B2 (en) | 2020-10-09 | 2024-05-14 | Deere & Company | Map generation and control system |
US11849671B2 (en) | 2020-10-09 | 2023-12-26 | Deere & Company | Crop state map generation and control system |
US11727680B2 (en) | 2020-10-09 | 2023-08-15 | Deere & Company | Predictive map generation based on seeding characteristics and control |
US11675354B2 (en) | 2020-10-09 | 2023-06-13 | Deere & Company | Machine control using a predictive map |
US11592822B2 (en) | 2020-10-09 | 2023-02-28 | Deere & Company | Machine control using a predictive map |
US11849672B2 (en) | 2020-10-09 | 2023-12-26 | Deere & Company | Machine control using a predictive map |
US11711995B2 (en) | 2020-10-09 | 2023-08-01 | Deere & Company | Machine control using a predictive map |
US12069986B2 (en) | 2020-10-09 | 2024-08-27 | Deere & Company | Map generation and control system |
US11844311B2 (en) | 2020-10-09 | 2023-12-19 | Deere & Company | Machine control using a predictive map |
US11889787B2 (en) | 2020-10-09 | 2024-02-06 | Deere & Company | Predictive speed map generation and control system |
CN113567553A (zh) * | 2021-07-30 | 2021-10-29 | 山东高速集团有限公司 | 一种智能压实评价指标及其现场测量方法 |
US12082531B2 (en) | 2022-01-26 | 2024-09-10 | Deere & Company | Systems and methods for predicting material dynamics |
CN114112603B (zh) * | 2022-01-28 | 2022-04-19 | 南京大学 | 一种模拟某一深度下夯土试样制备系统及方法 |
US12058951B2 (en) | 2022-04-08 | 2024-08-13 | Deere & Company | Predictive nutrient map and control |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2909106A (en) * | 1953-08-17 | 1959-10-20 | Berrange Aubrey Ralph | Impact rolling or tamping machines for the compaction of loose materials, such as road surfaces |
US2897734A (en) * | 1956-09-21 | 1959-08-04 | Jr Albert G Bodine | Sonic beam earth compacting system |
US4149253A (en) * | 1970-11-21 | 1979-04-10 | Losenhausen Maschinenbau Ag | Soil compacting apparatus |
US3797954A (en) * | 1972-05-23 | 1974-03-19 | Tampo Mfg Co | Ground compacting apparatus |
US3865501A (en) * | 1973-07-09 | 1975-02-11 | Int Tech Handelsonderneming En | Method and device for soil compacting |
FR2390546A1 (fr) * | 1977-05-09 | 1978-12-08 | Albaret Sa | Procede et dispositif pour le reglage en frequence des vibrations appliquees a un sol pour un engin de compactage, et engin de compactage equipe d'un tel dispositif |
US4422795A (en) * | 1979-04-09 | 1983-12-27 | Berrange Aubrey R | Compactor |
SE424455B (sv) * | 1980-11-26 | 1982-07-19 | Thurner Geodynamik Ab | Forfarande och anordning for metning av den packningsgrad, som uppnas vid packning av ett underlag med ett packningsredskap |
SE432792B (sv) * | 1982-04-01 | 1984-04-16 | Dynapac Maskin Ab | Forfarande och anordning for att astadkomma optimal packningsgrad vid packning av olika material sasom asfalt, jord etc medelst en vibrerande velt |
SE446893B (sv) * | 1984-04-09 | 1986-10-13 | Kjell Yngve Alvarsson | Sett och anordning for utjemning av betong vid gjutning av stora betongplattor |
SE455002B (sv) * | 1984-05-08 | 1988-06-13 | Nilsson Peter | Metanordning for metning av packningsgraden i byggnadsmaterial for damm- och vegbyggnadsendamal |
DE3421824C2 (de) * | 1984-06-13 | 1986-07-17 | CASE VIBROMAX GmbH & Co KG, 4000 Düsseldorf | Vorrichtung zur Kontrolle der Verdichtung bei Vibrationsverdichtungsgeräten |
SE456507B (sv) * | 1984-11-12 | 1988-10-10 | Pieux Armes Int | Forfarande och anordning for att medelst vibrationer packa ett jordlager |
SE445566B (sv) * | 1984-11-19 | 1986-06-30 | Thurner Geodynamik Ab | Forfarande for att uppskatta den packningsgrad som uppnas vid packning samt anordning for att meta packningsgrad for genomforandet av forfarandet |
FR2701968B1 (fr) * | 1993-02-24 | 1995-05-24 | Screg Routes & Travaux | Dispositif de détermination en continu des déplacements d'une partie d'un engin de travaux publics sur un terrain. |
SE501234C2 (sv) * | 1993-04-29 | 1994-12-12 | Thurner Geodynamik Ab | Förfarande och anordning för mätning och dokumentation av packningsresultat och styrning av en vält vid packning av ett utlagt underlag |
-
1995
- 1995-03-03 GB GBGB9504345.1A patent/GB9504345D0/en active Pending
-
1996
- 1996-02-21 ZA ZA961374A patent/ZA961374B/xx unknown
- 1996-03-01 CA CA002214753A patent/CA2214753C/en not_active Expired - Lifetime
- 1996-03-01 AU AU48850/96A patent/AU698714B2/en not_active Expired
- 1996-03-01 DE DE69602829T patent/DE69602829T2/de not_active Expired - Lifetime
- 1996-03-01 ES ES96904934T patent/ES2135213T3/es not_active Expired - Lifetime
- 1996-03-01 EP EP96904934A patent/EP0813635B1/en not_active Expired - Lifetime
- 1996-03-01 JP JP52669696A patent/JP3585929B2/ja not_active Expired - Lifetime
- 1996-03-01 CN CN96193476A patent/CN1087375C/zh not_active Expired - Lifetime
- 1996-03-01 WO PCT/GB1996/000489 patent/WO1996027713A1/en active IP Right Grant
- 1996-03-01 US US08/894,903 patent/US6004076A/en not_active Expired - Lifetime
-
1999
- 1999-06-18 US US09/336,001 patent/US6065904A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
CA2214753C (en) | 2005-01-25 |
US6004076A (en) | 1999-12-21 |
AU4885096A (en) | 1996-09-23 |
DE69602829D1 (de) | 1999-07-15 |
CN1087375C (zh) | 2002-07-10 |
EP0813635B1 (en) | 1999-06-09 |
US6065904A (en) | 2000-05-23 |
ES2135213T3 (es) | 1999-10-16 |
JP3585929B2 (ja) | 2004-11-10 |
WO1996027713A1 (en) | 1996-09-12 |
GB9504345D0 (en) | 1995-04-19 |
CN1182464A (zh) | 1998-05-20 |
EP0813635A1 (en) | 1997-12-29 |
AU698714B2 (en) | 1998-11-05 |
JPH11501376A (ja) | 1999-02-02 |
DE69602829T2 (de) | 1999-10-07 |
CA2214753A1 (en) | 1996-09-12 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB9504345D0 (en) | Method and apparatus for monitoring soil compaction | |
EP0740724A4 (en) | IMPROVED METHOD AND DEVICE FOR CHANGING REAL-TIME STRUCTURAL PARAMETERS | |
GB2317141B (en) | Compaction methods and apparatus | |
EP0809540A4 (en) | METHOD AND DEVICE FOR PRODUCING FASTENING ELEMENTS | |
GB2312008B (en) | Method and apparatus for measuring formation pressure | |
IL118191A0 (en) | Apparatus and method for remote spirometry | |
GB2285700B (en) | Monitoring apparatus and method | |
GB2300181B (en) | Web-up apparatus and method | |
GB9507347D0 (en) | Apparatus and method for cultivating molluscs | |
GB9519562D0 (en) | Method and apparatus for monitoring track condition | |
GB9625811D0 (en) | Method and apparatus for spectrum management | |
GB9618313D0 (en) | Method and apparatus for remediating soil | |
GB2307049B (en) | Filrtration apparatus and method | |
AU2702595A (en) | Method and apparatus for in situ soil remediation | |
GB9521614D0 (en) | Lock monitoring method and apparatus | |
ZA9810814B (en) | Apparatus and method for sterilising soil | |
AU8821398A (en) | Apparatus and method for compacting material | |
GB2288242B (en) | Ground compaction apparatus and method | |
GB9404964D0 (en) | Method and apparatus for flushing | |
SG73430A1 (en) | Method and apparatus for measuring cumulative time | |
PL314056A1 (en) | Method for and apparatus for continuously decontaminating soil | |
GB9524373D0 (en) | Monitoring apparatus and method | |
EP0762076A3 (de) | Verfahren und Einrichtung zur Materialanalyse | |
AU4191897A (en) | Method for asphalt compaction and compaction apparatus | |
GB2319480B (en) | Apparatus and method for microdermoabrasion |