Cảm biến điện dung cho việc điều khiển giữ khoảng cách khe hở và góc nghiêng

CAM BIEN DIEN DUNG CHO VIEC Dl£u KHIEN

GICP KHOANG CACH KHE Hd VA GOC NGHIENG

TS. Kh6ng Cao Phong, TS. Nguyen Diic Kho^t

Bd mdn TU dpng hda Xi nghiep Md vi Dau khi - TrUdng Dai hpc Md - Dia chat

NgUdi phan bien: TS. Phan Minh Tao

TOM TAT

Do lUdng khoang each khe hd vd gdc lech trong cong nghiep sdn xuat vd che tao mdyco vai trd

quan trong trong qua trinh hoat dong. Trong thUc tehien tai, hai thong so nay ditoc do trUc tiep hoac

gian tiep thong qua cdc loai cam bien gdc va cam bien khoang each. Viec do lUdng se trd nen phdc

tap khi doi tddng do thu dgng vd co quy dao di chuyen Idn. Di khac phuc cac van de do bdi bao nay

de xuat mgt loai cam bien dien dung mdi cd khd nang do dong thdi hai thong so vd khac phuc dUdc

cdc han che tren. Kit qua thi nghiem va mo phong chi ra tinh khd thi ciia loai cdm bien de xuat.

ABSTRACT

Air gap and tilt angle measurements have an important role in the process of manufacturing

industry. In practice, these two variables are directly or indirectly measured by angle sensors or gap

sensors. The measurement will be complicated when the object is passive and has long trajectory.

In order to overcome that problem, a new capacitive sensor, which can measure the two variables

together, was proposed. The experimental results and simulation results show the viability of the

proposed sensor.

1. MCJ DAU ban may d cac may gia cdng vat lieu (may phay,

may khoan, may bao...) vdi be may can dUpc giam

Trong cdng nghiep san xuat va gia cdng sat va dieu chinh on dinh trong qua trinh hoat ddng

vat lieu, viec do lUdng khoang each khe hd va gdc (dac biet Ik d cac may sit dung he thong khdng 6

nghieng cho cac san pham, chi tiet may va vat lieu dd - bearingless). Do lUdng khoang each khe hd va

dupe sir dyng rat rdng rai. Khoang each va gdc gdc lech ciing rat quan trgng trong qua trinh dUa

nghieng cua cac be m^t chi ti^t may trong qua trinh cac chi tiet may vao lap rap tU ddng diing vi tri hay

boat ddng can ludn dUpc giam sat va di^u chinh. kiem soat do day va do phang cua san pham dugc

Lay vi du nhU khoang each khe Ij^f va gdc lech ciia gia cong (thep tam, giay, gach...) [1] [2] "^

TAP CHf CO KHf VIET NAM • Sd 4 (Thang 4 nam 2012) ^ 9