Thermal Analysis --> Seebeck Coefficient / Electric Resistance

Seebeck - LSR - Seebeck Coefficient / Electric Resistance

The Thermal power, thermoelectric power, or Seebeck coefficient of a material measures the magnitude of an induced thermoelectric voltage in response to a temperature difference across that material. The thermal power has units of (V/K).
In recent years much interest has been shown in various methods of direct conversion of heat into electricity. Waste heat from hot engines and combustion systems could save billions of dollars if it could be captured and converted into electricity via thermoelectric devices
For this challenging application Linseis has developed a characteristic evaluating instrument for these materials and devices; the LSR-3 “Linseis - Seebeck & Electric Resistivity Unit”.


The LSR - 3 can simultaneous measure both Seebeck coefficient and electric resistance (Resistivity).

  • Prism and cylindrical samples with a length between 6 to 22mm can be analyzed
  • Wires and Foils can be analyzed with a unique measurement adapter
  • Three different exchangeable furnaces cover the temperature range from -100 up to 1100°C
  • The design of the sample holder guarantees highest measurement reproducibility
  • State of the art 32-Bit software enables automatic measurement procedures
  • Measurement Data can be easily exported


Principles of Measurement

A sample of cylindrical or prism shape is vertically positioned between two electrodes. The lower electrode block contains a heater, whilst the entire measuring arrangement is located in a furnace.
The furnace surrounding the measuring arrangement heats the sample to a specified temperature. At this temperature the secondary heater in the lower electrode block creates a set temperature gradient. Two contacting thermocouples then measure the temperature gradient T1 and T2. A unique thermocouple contact mechanism permits highest accuracy measurements of the electromotive force dE at one wire of each of the two thermocouples.
The dc four-terminal method is used to measure the Electric Resistance. By applying a constant current (I) at both ends of the sample and measuring the change in voltage dV between one wires at each of the two thermocouple pares.




Temperature range*

- 100 to 500°C, RT up to 800°C, RT up to 1100°C

Specimen holder

Sandwiched between two electrodes

Measurement method

Seebeck coefficient: Static dc method 
Electric resistance: Four-terminal method


inert, oxid., red., vac.

Sample size

2 to 4 mm square or diameter x 6 to 23 mm long (maximum)

Lead interval

4,6,8 mm

Cooling water requirements


* different furnaces available

Brochure for more information

deel deze pagina op uw:

Facebook Twitter Google+ Linkedin


Klik hier om direct contact met ons op te nemen.



Smartchem 600



lees meer

Gratis Weende analyse in ongemalen mengvoer

Snelle (Weende) analyse en nog vele andere eigenschappen in ongemalen mengvoer (brokken en biks) en zonder chemicaliën met een onderhoudsvrije FTNIR voor Laboratorium en proces.........kan dat ??

Ja, dat kan.... met het NutriLine concept!


lees meer

Brookhaven Instruments brengt de NanoBrook op de markt

Brookhaven Instruments heeft de NanoBrook geïntroduceerd voor de analyses in het nano bereik. Alles is nu compleet op het gebied van deeltjesanalyses. U kunt nu studies in peptides, RNA en andere biologische produkten uitvoeren. Kijk naar ons overzicht van onze deeltjes analyses. Voor de goede orde wijzen wij u erop dat wij soms ook in staat zijn om deeltjes analyses voor u uit te voeren in ons applicatie laboratorium.  


lees meer