Paul Bernard Hasselquist
Engineers at Candelero St, Santa Fe, NM
License number
Colorado 17714
Issued Date
Dec 12, 1980
Renew Date
Dec 31, 2002
Expiration Date
Dec 31, 2002
Type
Professional Engineer
Address
Address
2187 Candelero St, Santa Fe, NM 87505
Professional information
Calibration Stand For Sensor
US Patent:
5020357, Jun 4, 1991
Filed:
Aug 18, 1989
Appl. No.:
7/395757
Inventors:
Nebojsa Kovacevic - Plymouth MN
Paul B. Hasselquist - Santa Fe NM
Paul B. Hasselquist - Santa Fe NM
Assignee:
N. K. Biotechnical Engineering Company - Minneapolis MN
International Classification:
G01L 2500, G01D 1130
US Classification:
73 1B
Abstract:
A calibration stand for multiforce component sensors is capable of providing six components of force and moment to such sensors, using support and loading apparatus on the calibration stand. The stand is a compact, portable unit that provides for holding the sensor in a precise position by fully permitting pitch and lateral adjustments of the support assembly, as well as vertical and lateral adjustments for axial and "roll" or moment loading. The adjustability permits accurate applications of normal, lateral, and axial loads on the sensor being calibrated. Load cells are used to measure the application of the loads, and by proper instrumentation the output from the load cells can be used for recording data or providing digital displays. A coupling for carrying loads to the sensor permit determining whether shear loads are being introduced into the sensor and the adjustments permit zeroing out such shear loads so the loads are directed along the desired axes only. The calibration stand permits simultaneous loading in directions along more than one component of measured force.