Hildebrantometer

General discussions of measurement techniques and the results of testing of techniques and equipment.

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mdvaden
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Hildebrantometer

Post by mdvaden » Tue Sep 23, 2014 7:46 pm

Anyone ever used something like this gadget Ron Hildebrant is using? He used it to volume measure the Coast Redwood that Chris Atkins and I found in Redwood National and State Parks a few months ago. Atkins measured with just the laser rangefinder, and came up with 35,500 cu. ft. .. through the day, I referred to Ron's gizmo as the "Hildebrantometer" ... it was mounted over his Impulse 200LR laser rangefinder.

Ron said Atkins method has potential to be very accurate, if done accurately. Ron's method apparently takes longer for number-crunching. Waiting for his tally ... maybe this week. If Atkins number holds, that places this coast redwood near the 5th largest known. The 3rd image has Ron next to the tree.
Attachments
RH_1200.jpg
Gadget_2.jpg
Gadget_1.jpg
M. D. Vaden of Oregon = http://www.mdvaden.com

200 Pages - Coast Redwoods - http://www.mdvaden.com/grove_of_titans.shtml

Portraits & Weddings - http://www.vadenphotography.com

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M.W.Taylor
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Re: Hildebrantometer

Post by M.W.Taylor » Fri Sep 26, 2014 5:54 pm

Ron Hildebrant was my first exploring partner many years ago. He taught me quite a lot about tree measurement. He is a very bright man. He memorized Pi to something around 10,000 decimals not long ago. I've checked his scratch built angle readers with my factory built instruments and they seemed to be very accurate. He has a wooden transit just like that but I think he uses the Impulse200LR for vertical height now. I bet that contraption is significantly more accurate than the MacroScope.

Michael Taylor

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mdvaden
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Re: Hildebrantometer

Post by mdvaden » Fri Sep 26, 2014 6:39 pm

M.W.Taylor wrote:Ron Hildebrant was my first exploring partner many years ago. He taught me quite a lot about tree measurement. He is a very bright man. He memorized Pi to something around 10,000 decimals not long ago. I've checked his scratch built angle readers with my factory built instruments and they seemed to be very accurate. He has a wooden transit just like that but I think he uses the Impulse200LR for vertical height now. I bet that contraption is significantly more accurate than the MacroScope.

Michael Taylor
He let me carry the gadget in a bag. But I didn't see it until he unwrapped it. Had I realized how intricate the tool was, I probably would have moved even slower, although I was careful anyway.

Ron seems to put a lot of care into his tools and details, so I could imagine the two of you as an exploring team.
M. D. Vaden of Oregon = http://www.mdvaden.com

200 Pages - Coast Redwoods - http://www.mdvaden.com/grove_of_titans.shtml

Portraits & Weddings - http://www.vadenphotography.com

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