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  • Dielectric & Ferroelectric Test Instrument
  • Leakage Current and Pyroelectric Test System HT 600C
  • Leakage Current and Pyroelectric Test System HT 600C
  • Leakage Current and Pyroelectric Test System HT 600C
  • Leakage Current and Pyroelectric Test System HT 600C Leakage Current and Pyroelectric Test System HT 600C

    Leakage Current and Pyroelectric Test System HT 600C

    PolyK

    MSRP:
    Now: $1,130.00
    (You save )
    SKU:
    PK-Pyro600

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    Product Description

    Please contact us for price information sale@polyk-lab.com

    In high energy density and power density capacitors, the electrical leakage current may contribute significantly to the power loss and thermal runaway.

    For pyroelectric ceramic and polymer materials, it is is important to measure the pyroelectric current as a function of temperature. The pyroelectric current may be as low as pA.

    This measurement system can measure up to 600 C for pyroelectric current (pyroelectric constant coefficient) with an electrometer such as Keithley 6514, 6517A/B, Keysight B2980A B2985A. 

    • The electrical resistivity reported in many commercial material datasheets is usually measured following ASTM D 257 at low electrical field (<1 V/um) for short period of time (60 seconds). For comparison, many capacitors are operated at >100 V/um field and the conductivity increases exponentially with field. Therefore, such data in the manufacturers’ datasheet are not relevant.
    • Measuring leakage current of thin polymer film under high electrical field and high temperature is very challenging:
    • Current can be ~pA (10-12 A), interference from surroundings must be completed shielded.
    • As dielectric fluid may become conductive during long term high voltage test, the test must be done in air without dielectric fluid. Many specimens have low dielectric breakdown strength in air and it is hard to test them at >100 V/um for > 1 hour.
    • In addition, thin polymer films are usually soft and they can be easily damaged by the electrode. Therefore, it is very difficult to measure such thin film (<10 um) at field >100 V/um.
    • pa current measurement by Keithley 6517 (6514) or similar electrometers with triax shielded cables.
    • High voltage was applied with stable power supply/amplifier such as SRS PS350 or Trek. Voltage: 5~10 kV
    • Temperature: -184 to 300 C with liquid nitrogen cooling
    • Fully shielded test enclosure with electrical insulation mounted to the inner side of the chamber door for easy sample loading.
    • High voltage is applied with unique spring-loaded ball electrode to maintain reasonable electrical connection without damaging soft thin polymer film.
    • pA current measurement has been confirmed in capacitor film with thickness <5 um and high voltage (200 V/um) can be applied for >20 hours without dielectric breakdown.
    • LabView QControl© program automatically sets up the test and record the results with thermocouple close to sample.
    • Specimen Size: up to 8 cm diameter, as small as <3 mm.
    • Test system can also be used to measure TSDC (thermally stimulated depolarized current) or pyroelectric current.
    • Module design concept such that the test chamber can be shared with other PolyK dielectric and high voltage test system

    Contact us for options and final price 

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    One year warranty

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