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Quantum Meter

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光量子計









Basic Quantum Meter　BQM-01
by Apogee Instruments






Quantum Meter QMSS with Cable Sensor
for use quantum measurement of Plants leaves




ＴＥＲＲＡ-ＴＥＣＨ, INC.launches

Quantum Meter weblog

We provide useful information for application

example of use and Q & A.



The Basic Quantum Meter is used to determine

the amount of light that plants use.

It accurately estimates radiation in the

400 - 700nm range, which is the specific

range of light used by plants.



Easy to use:

You only --just turn it on, hold it at eye level

(with the sensor surface on top horizontal) and

read the values.

The sensor is cosine corrected for operation in

sunny or cloudy weather and at high noon or when

the sun is lower in the sky.



The Basic Quantum Meter reads solar radiation of

0 - 1999 µmol m2 s1 (0 - 10,000 foot candles).

It has a standard operating range of 32 - 122°F

with less than 80% relative humidity from 32 - 86°F

and less than 70% relative humidity from 86 - 122°F.

It runs on one 9V battery (included).



Features:

* Determines the amount of light plants use

* Has a domed diffusion disk and head for improved

self-cleaning characteristics and long-term stability

* Innovative blue lens improves the accuracy of

sensor and meter

* Pigments in the lens filter incoming light



Speccifications

◆ Basic Quantum Meter

Application: Measuring photosynthetic photon flux

Measurement range: 0-1999 ìmol m-2 s-1

Input power: Standard 9 V battery

Operating environment:

32 to 122°F. Less than 90% non-condensing relative

humidity up to 86°F.

Less than 70% RH from 86 to 122°F

Display: 3-1/2 digit, approx. 0.50 in. height

Cable:

For meters with separate sensor: 2 meters of

shielded,twisted-pair wire with Santoprene

casing.

Dimensions: 4.9 x 1.5 x 0.9 in.

Weight:
150 g-BQM,QMSW;

180 g-QMSS, QMSW-SS;



■光量子計Quantum Meter　とは

植物の成長にもっとも必要な400 ～700nm
の波長の有効光量子を計測する測定器です。

光合成は400～700nmの波長領域の光子によって
行なわれておりこの光を光合成光子粒（ppf：
Photosynthetic Photon Flux ）と呼んでいます。
測定単位はμｍol m-2 S-1
（マイクロモル/平方メートル・秒）で表示されます。

光量子は光子によって運ばれるエネルギーを表し、
この製品は光量子センサーと呼ばれます。

（＊nm=10億分の１m）