Transcript Document
Fast, direct measurement in cubic yards Load Volume Scanner Overview Certification effort Raw Scan Data 2D View Truck Under Load Volume Scanner 2D View Scan Data 3 D View Scan Data Uses Mining & Construction •Ore •Crushed Stone •Sand & Gravel •Other Aggregates •Coal, etc. Forestry & Landscaping •Wood Chips •Bark Mulch •Raw Bark •Compost & Fertilizer •Soils Waste Processing •Shredded Scrap Steel •Shredded Tires •Disaster debris Why is LoadScan attending this meeting of NCWM? Significant demand from US industry to use our Load Volume Scanner (LVS) for trade measurement. We hope to submit amendments to Handbook 44 so that the LVS can achieve NTEP certification. The LVS does not fit nicely into any existing instrument classification in Handbook 44 so development of specific language/amendments is not trivial and requires dialogue. We have ‘Developing Item’ status and want to move forward. So where does the LVS fit in Handbook 44? No existing classification specifically covers our instrument. In terms of Application - the quantitative measurement of bulk solid materials such as gravel, sand, soil, mulch etc - the LVS is best compared to Scales or Dry Measures. In terms of Principle of Operation the LVS is best compared to Multiple Dimension Measuring Devices (MDMD). We believe that MDMD is the best match and propose to integrate the LVS into HB44 as an amendment to the MDMD section, or if necessary as a new section based on MDMD. How is the LVS Similar to Multiple Dimension Measuring Devices? Both typically uses the same non-contact laser measurement technology. Both compute volume from multiple linear distance measurements. Both typically measure moving targets passing below the measurement elements of the instrument. Both measure the target relative to a zero reference profile formed by the surface or container that carries the object or load being measured. Have other legal metrology authorities approved the LVS? The LVS has been approved Legal for Trade in New Zealand since 1999 and in Australia since 2010. Type approval in New Zealand was based loosely on the OIML specification for Automatic Catchweighing Instruments (OIML R51). Type Approval in Australia was based as closely as practical on the OIML specification for Multi-Dimensional Measuring Instruments (OIML R129). So can the LVS be incorporated into HB44 MDMD classification? Consider this excerpt from HB44, Section 5.58. Multiple Dimension Measuring Devices: A.2. Other Devices Designed to Make Multiple Measurement Automatically to Determine a Volume. – Insofar as they are clearly applicable, the provisions of this code apply also to devices designed to make multiple measurements automatically to determine a volume for other applications as defined by Section 1.10. General Code paragraph G-A.1. Commercial and Law-Enforcement Equipment. This clearly applies to our Load Volume Scanner device so MDMD is an appropriate choice for classification. However some of the provisions of the code cannot be applied to the LVS as specified. What are the main issues that need to be addressed? Accuracy requirements (tolerances) Application restrictions Methods for accuracy testing (type evaluation, initial and in-service) Methods for disturbance testing (type evaluation only) What is the next step? To move forward will require dialogue. In addition to submitting more detailed documentation including HB44 amendment proposals, I would like to request the opportunity to engage in dialogue with the appropriate working group and/or individual members during this meeting of NCWM to discuss these proposals.