Title: Thermal cup vacuum detection instrument
Application Number: 200610085703 Application Date: 2006.06.28
Publication Number: 1869624 Publication Date: 2006.11.29
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: G01L21/08
Applicant(s) Name: Yang Yifang Address: 215200
Inventor(s) Name:
Attorney & Agent:
Abstract:
     The invention is a thermos cup vacuum detector, calculating vacuum degree by comparing ultrasonic strength and time difference between inner cup bottom, outer cup bottom and two walls of the thermos cup, thus basically able to meet small, accurate and non-damage vacuum detection requirements of thermos cups.
Time: 3