Development and calibration of portable power measuring instrument for testing agricultural machines. MARDI Report No. 221 (2017).
Abstract
The Engineering Research Centre in MARDI has developed a portable power measuring instrument for measuring power requirement, draft force and pull slip performance of agricultural machines. The methodology used to develop this instrument includes construction and testing of a portable power measuring instrument circuit, construction of a calibration stand and calibration of the power measuring instrument with commercial torque and force transducers. The construction and testing of the power measuring instrument involve the design and construction of a stable direct current power supply regulator and a suitable instrumentation amplifier circuit. The calibration of the instrument was then carried out with Honeywell torque and force transducers on the calibration stand. The correlation of the voltages output of the instrument and torque or force values from the transducers is very linear with an accuracy of 0.1% error margin. In short, a portable power measuring instrument which could be interfaced to any commercial torque or force transducers has been successfully developed. In addition, the calibration stand was found to be a convenient method to calibrate commercial torque or force transducers over a wide range of load capacity by subjecting the transducers to counter the variable weight moment of the cantilever beam pivoted at the calibration stand frame.
| Item Type: | Article |
|---|---|
| Keywords: | Teknologi Pemakanan |
| Taxonomy: | By Niche > Food Technology > Research & Food Product Development (R&D) |
| Local Content Hub: | Niche > Food Technology |
| Depositing User: | Muhammad Shafiq Amirullah |
| Date Deposited: | 28 Mar 2025 04:23 |
| Last Modified: | 28 Mar 2025 04:23 |
Actions (login required)
 |
View Item |
