Download How is the LVS Similar to Multiple Dimension Measuring Devices?

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.