2007年06月30日(土) 17:46
argus electronic gmbh
Next Generation of
Hazard Tree
Assessment!
PiCUS
Sonic
Tomograph
2007 model
ピカス弾性波樹木
画像診断システム
2007 モデル
TERRA-TECH,INc.
The Fareast Sole Agent
of Argus Electronic GmbH
provides information about
PiCUS Sonic Tomograph.
アーガス社極東総代理店
テラテックはこのブログで
ピカス弾性波樹木画像診断
システムの最新情報を
公開します。
Features
◆Localises defects in trees
exactly and non-invasively.
◆PICUS interpret damages of
trees with 2-Dimensional
colored Tpmograms.
◆User friendly, High Density
Images speaks thousand words.
樹木内部腐朽を非破壊で正確に検知し
内部欠陥を2次元カラー断層画像で
わかりやすく表示します。
人体のX線CT(Computer Tomgraphy)や
MRI(核磁気共鳴断層画像撮影）と同様
樹木を傷つけることのない非破壊検査で
2000年ドイツ優秀技術賞を受賞しました。
特別な熟練を要せず現場で画像診断が
できることから英国(80台以上）を中心に
世界各国で使われています。
This highly sophysticated
system uses a series of
sensors placed around the
stem of the tree at the
desired level of
investigation and
connected to a computer.
対象の樹幹に鉄釘を打ち込み釘頭を
専用ハンマーで打撃し、センサー間を
伝わる音波伝播時間をモジュールで測り
PCソフトで演算・解析して内部の密度分布
（腐朽分布）をカラー画像で表示します。
By tapping special pins
placed into the sub-bark
layer of the tree,
a series of sound waves
can be cross-interpretted
by all the sensors.
This provides a cross-
section picture of
the tree's interior
condition at any given
level of the stem using
the accurate measurement
of sound velocities through
varying densities of tissue.
PICUS Tomograph can be used
either at ground level or
high in the crown of a tree.
It is thus possible, using
multiple readings,
to assess accurately
the condition of the
entire stem of a tree
is required.
樹木の基部だけでなく、先端部まで
計測すれば（架設足場や高所作業車使用）
詳しい腐朽の原因がわかります。
The problem Municipalities
and private owners are held
liable for damages caused by
their trees.
Most often trees are broken
or thrown due to decay caused
by fungal infections.
To avoid risks the safety
of trees has to be assessed
on a regular basis.
The usual investigation
method and devices
need several years
of experience, inspect
only small parts of
the trunk , or cause
severe injuries
(e.g. increment borers,
penetrometers)
Their range of application
is therefore limited.
これまでの樹木診断方式はは樹体内に
錐を貫入して錐にかかる抵抗で密度分布
（腐朽度）を検知してしてきましたが、
データは一方向の線的な情報だけで
判読には数年以上のの経験が必要でした。
またドリル貫入により病菌を内部に
拡大させる危険もありました。
直径が錐の長さ2 倍以上の樹木は
測定できませんでした。
The PICUS Sonic Tomgraph
can investigate
very large trees which
have been a problem
with previous method.
It is easy to apply and
yields precise results.
The measuring is based
on the fact that sound
wood is a better wave
conductor than wood
damaged by decay.
測定原理：
健全な材中を伝わる音波の速度は腐朽した
欠陥材中を伝わるそれより速いという
簡単な原理に基づいています。
The device uses a series
of sonic sensors
which detect waves
induced and propagated
through the wood.
Typically 10 to 14
sonic sensors are
strategically placed
around the tree.
Each sensors is connected
to a nail which is
tapped into contact with
the wood by a hammer
at each inspection point.
A small tap on a metal
pin is all that is
required to send sound
waves which are received
and measured by the other
sensors.
●step 1
Mounting the magnetic sensors
to the tree by using small
roofnails.
Recording the geometry of
the tree's cross-section.
In most cases two perpendicular
measurements with a calliper suffice.
If not, the software provides
assistance for a detailed
description of the geometry.
釘の先端が辺材部に
達する深さまで
樹皮の上から
幹の周りに（適当な間隔で）
鉄釘を打ち込みます。
●step 2
Induction of stress waves:
a slight tap on
each sensor.
All other sensors measure
the velocity of
the stress waves.
Handheld PC controls
the measurement and
stores the data.
小型ハンマーで釘の頭を
数回打撃します。
伝播時間とセンサー間の
距離を基にソフトウエアで
音波速度が計算され
画像化されます、
●step 3
Handheld PC shows
the result of
the measurement
graphically right
at the tree.
４回のスクロールで約10秒後
ノートPC画面上に
断層画像が表示されます。
■Specifications
*Tree diameter measurable:
0.3m〜6m by 30 sensors
*Dimensions of the unit:
W 540 x L480 x H180mm
(including Case)
*Weight: 11.3kg (including case)
*Power Supply:
Charging unit 100-240V AC 50Hz
*Type of Accumulator: Lead accumulator
*Accu power: 2.1Ah
*Charging Time : max.10 hrs
*Consumption: 35 mA
*Time of operastion at 20 ℃
with 8 modules: approx: 7.5 h
meets 80 trees (5 min/tree)
with 10 modules:aoopprox: 6h
meets 50 trees(7 min/tree)
with 12 modules: approx: 4h
meets24 trees (10 min/tree)
*Operation Temperature: 0〜40℃
*PC performance : Pentium II 266 MHz more
Windows 98/ Me/ 2000/ XP Compatible
Contents: PICUS Power Supply, Modules,
Measuring Tape, Strap, Battery Charger,
Hammer,Steel Nails,Pryer, Software,
Instruction Manual, Spare Battery,
ABS Carrying Case
Disclaimer: Technical specifications are
subject to change without notice.
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