Product info

Thermoelectric element (peltier device) controlled 4ch/1ch analysis system

Analytical system in which temperature control is performed electrically by a thermoelectric element (peltier element)
Thermoelectric element (peltier device) controlled 4ch/1ch analysis system JAXA COSMODE

Features

The system does not need liquid nitrogen. The simple system provides you evaluation results, and is the best suited for material and environmental evaluations.
  • Running cost is just electricity cost only.
  • Measurement at low temperatures (-80℃ to +125℃) and high vacuum (10-4Pa or less).
  • There are two types, such as the most suitable type for evaluation in a large vacuum chamber that can measure the desorption gas emitted from a sample with up to four sensor modules, and the most suitable type for evaluation in a small vacuum chamber that measures with one sensor module.
Measurement is possible without gasifying the measurement sample.
  • Without destroying the sample, it is possible to collect it as it is.
  • No sample size restrictions provides outgas measurement withthe final product state.
Measurement is possible without gasifying the measurement sample.
※The photo shows the sample loading in a small vacuum chamber.
Outgas measurement can be performed in real time over a long period of time.
  • Measuring over a long period of time with up to four modules, it is possible to identify the outgas emission point and the time of occurrence.
  • The measurement interval can be selected from among 1, 10, 30, 60, 600, and 3600 seconds.
  • The measurement data is divided and saved every week.This can prevent the enlargement of the data.
Example of continuous measurement for two weeks
Example
Week 1 data
Example
2nd Week data
The sensor module can be cooled down to -80℃ or less depending on the heat radiation conditions.
  • By cooling the mounting part (heat dissipation surface) to -30°C, crystal oscillator can be cooled to -80°C or less.
The sensor module can be cooled down to -80℃ or less depending on the heat radiation conditions.
The sensor module can be cooled down to -80℃ or less depending on the heat radiation conditions.
【4ch Analysis system】
The sensor can be installed in a large vacuum chamber.
  • LVDS was selected as the power interface.
  • The sensor and sensing unit can be installed at a distance of up to 20m.
【1ch Analysis system】
The system is a reasonable price entry model that is best suited for evaluation in small vacuum chambers.
  • The number of the sensor modules to be connectesd is just one, and this is the best suited solution for environmental evaluation of small vacuum chambers.
  • Combination with a small vacuum chamber for material evaluation, this enables material analysis evaluation with an inexpensive configuration.
  • High repeatability of outgas desorption enables highly accurate and stable measurement.
The system is a reasonable price entry model that is best suited for evaluation in small vacuum chambers.
The system is a reasonable price entry model that is best suited for evaluation in small vacuum chambers.
Desorption wave form of adsorbed siloxane D8 amount
Desorption amount(Hz) 166 491 732 1,134 2,296 6,006 12,170 19,584 Average σ
1Hz/sec
Desorption temperature(℃)		 -13 -12.3 -13 -12.4 -12.4 -13 -11.8 -10.9 -12.4 0.73
付着量(Hz) 1Hz/sec
Desorption temperature(℃)
166 -13
491 -12.3
732 -13
1,134 -12.4
2,296 -12.4
6,006 -13
12,170 -11.8
19,584 -10.9
Average -12.4
σ 0.73
Crystal part of the sensor can be replaced.
The crystal part of the sensor contaminated at outgas measurement must be replaced because it is a consumable part.
  • Customers can make the replacemen easily.
Crystal part of the sensor can be replaced.
Replacement crystal
※On the other company's outgas sensors for QTGA method, customers can not replace crystal sensor and have to change sensor module into new one.
Running cost reduction for approx. 1/10
Crystal part of the sensor can be replaced.
How to replace the crystal
Customize is available
  • Widen opening angle of reaction electrode to expand supplementary range
  • Modify structure of the Sensor Module to adjust to the mounting part
  • Change length of cable and connector type to adjust to the vacuum chamber
  • Change the control specification and analysis function of the application software
Example of Widening opening angle upon customer's request

System configuration

【4ch Analysis system】
Example of system configuration installed in a large vacuum chamber
System configuration
【1ch Analysis system】
Example of system configuration installed in a small vacuum chamber for material evaluation
System configuration

Compact high vacuum evaluation system is available More details

Application software
"Twin-QCM Real Time Monitor" is dedicated application software to handle the Twin-QCM sensing unit and to monitor, to analyze data.

  Main functions

  • Measurement and monitoring of frequency changes in QCM Sensor Modules
  • Measurement and monitoring of temperature changes in QCM Sensor Modules
  • Storage function of measured frequency and temperature data in csv format
  • Analysis functions such as measuring the frequency deviation of acquired frequency data and superimposing waveforms
  • Frequency stability monitoring by Allan ANALYSIS METHOD
  • Analysis of desorption rates and thermal correlations of contaminants by ER (Evaporation Rate) Charts
  • Monitoring the status of Twin-QCM Sensing unit
  • Editing of temperature control program and writing to temperature controller (built-in Twin-QCM Sensing unit)
  • Determination of CQCM/TQCM and automatic switching of temperature control system

Application software
Twin-QCM Real Time Monitor Screen example

Specification

Twin-TQCM Sensor Module PSA-QM-1002
Frequency 10.278MHz(Fundamental wave) /30.833MHz(The 3rd. overtone)
Mass sensitivity 2.39x108 (Hz/g)㎠(Fundamental wave)
7.17x108 (Hz/g)㎠(The 3rd. overtone)
Operating temperature range -80 ～ +125℃
Temperature characteristics ±10ppm
against +25℃ (-80℃ to +80℃)
Dimensions Φ35.0x23.3(H)mm
Electrode area:12.57㎟
Weight ≦50g
Peltier power ≦9W
Measurement viewing angle 20° (Harf Angle)
Twin-QCM Sensing unit 4ch type・PSA-QS-1001 1ch type・PSA-QS-1002
Number of control channels 1 ～ 4 1
Frequency detection accuracy ≦1ppm ≦1ppm
Frequency resolution 0.01Hz 0.01Hz
Operating temperature range +10 ～ 40℃ +10 ～ 40℃
Power supply voltage AC100V ～ AC240V(50/60Hz) AC100V ～ AC240V(50/60Hz)
Dimensions 437(W) x 132(H) x 499(D) mm(Except protrusions) 437(W) x 132(H) x 499(D) mm(Except protrusions)
Weight ≦10kg ≦10kg
Twin-QCM Sensing unit 1ch type・PSA-QS-1002
Number of control channels 1
Frequency detection accuracy ≦1ppm
Frequency resolution 0.01Hz
Operating temperature range +10 ～ 40℃
Power supply voltage AC100V ～ QC240V(50/60Hz)
Dimensions 437(W) x 132(H) x 499(D) mm(Except protrusions)
Weight ≦10kg
*The power supply voltage may be limited depending on the country or region where the product is used.
External appearance of Twin-TQCM Sensor Module (unit:mm)
External appearance of Twin-TQCM Sensor Module
External appearance of Twin-QCM Sensing unit(4ch) (unit:mm)
External appearance of Twin-QCM Sensing unit(4ch)
External appearance of Twin-QCM Sensing unit(1ch) (unit:mm)
External appearance of Twin-QCM Sensing unit(1ch)
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