Evaluation of Sensors for Biosecurity and Animal Welfare on Livestock Trailers
| dc.contributor.advisor | Fonstad, Terry A | |
| dc.contributor.committeeMember | Noble, Scott D | |
| dc.contributor.committeeMember | Guo, Huiqing | |
| dc.contributor.committeeMember | Crowe, Trever | |
| dc.creator | Nykoluk, Derrick Marvin | |
| dc.date.accessioned | 2023-09-12T21:31:38Z | |
| dc.date.available | 2023-09-12T21:31:38Z | |
| dc.date.copyright | 2023 | |
| dc.date.created | 2023-08 | |
| dc.date.issued | 2023-09-12 | |
| dc.date.submitted | August 2023 | |
| dc.date.updated | 2023-09-12T21:31:38Z | |
| dc.description.abstract | Validation of a Thermally Assisted Drying and Decontamination (TADD) cycle requires verification that every surface within a livestock trailer achieves the target temperature and time combination required to inactivate pathogens of concern. This validation can be achieved by instrumenting the areas of a trailer that are known to remain coldest during TADD and inferring that everywhere else in the trailer is as hot or hotter. Research presented in this thesis outlines a procedure for determining the consistency and reliability for any sensing device seeking to enter the market of validating TADD cycles by reporting surface temperatures of livestock trailers undergoing TADD. Through this procedure, devices are subjected to seven simulated sources of damage identified by ISO standards and industry professionals. Consistency of a device’s measurement is demonstrated graphically by plotting its measurement deviance from a calibrated reference transducer during a sweep of the devices operating temperature range before and after being subjected to a source of damage. Reliability of devices tested was defined as the acceptance quality limit (AQL) as outlined in ISO 2859-1. A randomized block design dictating the order that the methods of damage are applied to the sensors and subsequent analysis of variance (ANOVA) determines which sensors, if any, have significantly worse measurement deviance than others of that design. Application of the proposed testing methodology revealed that the measurement deviance metric used to evaluate sensor measurement performance is prone to experimental error as the temperature sweep of the device’s operating range is inconsistent. A revised procedure is recommended that would assess a prospective devices measurement accuracy and time response separately. The small test lots of five devices used meant that the ANOVA had very little capability of identifying outlying devices. Devices which failed outright further reduced the sensitivity of the ANOVA by eliminating replicate observations of measurement deviance that could be used. The assessment of these metrics for a given sensor, based on the testing methodology in this thesis, does provide a generalized, and unbiased tool for prospective sensor manufacturers and livestock industry professionals to evaluate a new product before it is sold or utilized. | |
| dc.format.mimetype | application/pdf | |
| dc.identifier.uri | https://hdl.handle.net/10388/14974 | |
| dc.language.iso | en | |
| dc.subject | sensor performance | |
| dc.subject | animal welfare | |
| dc.subject | biosecurity | |
| dc.subject | temperature sensing | |
| dc.subject | humidity sensing | |
| dc.subject | TADD | |
| dc.subject | PEDv | |
| dc.subject | livestock | |
| dc.title | Evaluation of Sensors for Biosecurity and Animal Welfare on Livestock Trailers | |
| dc.type | Thesis | |
| dc.type.material | text | |
| thesis.degree.department | Mechanical Engineering | |
| thesis.degree.discipline | Mechanical Engineering | |
| thesis.degree.grantor | University of Saskatchewan | |
| thesis.degree.level | Masters | |
| thesis.degree.name | Master of Science (M.Sc.) |