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高精度数字式旋光仪

点击次数:961发布时间:2009/11/2 0:00:00

高精度数字式旋光仪

更新日期:2012/3/8 16:46:51

所 在 地:上海

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简单介绍: 高精度数字式旋光仪

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    高精度数字式旋光仪介绍 
a background of experience
hp stands for high precision versatile and easy to operate
since 1959, the name of dr. kernchen has been closely connected
with progress in development and design of automatic polarimeters.
our instruments are used worldwide in more than 55 countries
and have earned a good reputation due to their excellent performance
and reliability. gyromat-hp combines advanced microprocessor
technology and highest optomechanical precision opening new
dimensions in polarimetry.

    高精度数字式旋光仪特点

hp stands for high precision
high precision means not only a high resolution of 0.001° optical
rotation. it also means a very good linearity of <0.003° over the entire range of measurement. thus, the gyromai-hp guarantees excellent absolute accuracy. displayed results are averages of
multiple measurements. the sampling rate is 8/s and by se-lecting a proper integration time within the range of 1-99 s,even samples of lowest light transmittance down to 0.1 % (od 3) can be measured accurately. moreover, microbore cells for sample volumes of less than 1 ml can be used without problems.

versatile and easy to operate
a well designed water-proof keyboard and a 40-column alphanumeric
display are provided for communication between operator and instrument. all instrument functions are displayed as easily
understandable menu items:
- range se-lection.
- se-lection of light source, wavelength (multiple light source/
wavelength models only).
- parameter input, such as cell length, specific rotation or standard
concentration.
- integration time se-lection to define the number of measurements
averaged.
- sample identification mode se-lection, either for individually
entered or automatically advanced sample numbers.
- setting of calendar date and time. 

   高精度数字式旋光仪技术指标

seven measuring ranges
optical rotation
specific rotation
concentration...
-by measuring optical rotation,while specific rotation and cell态万方length are entered manually.
-after calibration by a standard.
-sucrose
-glucose
-°z international sugar scale,icumsa 1988.

a choice of light sources and wavelengths
eight models of gyromat-hp are offered to meet individual requirements ranging from a budget priced single light source
single wavelength polarimeter up to the most versatile model with
three lamps (sodium, mercury,tungsten-halogen) and six wavelengths.

digital display of temperature
the optical rotation of all substances is influenced by temperature.
sample cells with builtin pt-100 platinum resistance thermometer
permit sample temperature measurements to 0.1 °c accuracy.

two data output ports
a centronics type parallel printer interface port allows data recording by any low cost standard printer. the second data output
port is an rs-232c serial interface for communication with a computer.data transmitted to printer or computer are sample identification number, measured value,sample temperature (optional),
date and time of measurement,and measuring range label.

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