Impedance Analyzer
[E4990A, Keysight Technologies, USA]

Located at: CRF Annexe - S03
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a) Measurement parameters: |Z|, |Y|, θ, R, X, G, B, L, C, D, Q, Complex Z, Complex Y, Vac, Iac, Vdc, Idc

b) 25 mΩ to 40 MΩ wide impedance measurement range (10% measurement accuracy range)

c) 4-channel and 4-trace on 10.4-inch color LCD with touch screen

d) Built-in DC bias range: 0 V to ±40 V, 0 A to ±100 mA


a. Frequency range: 20 Hz to 20 MHz
b. Impedance range: 25 mΩ to 40 MΩ

List of Facilities:

• Sweep type: Linear frequency, log frequency, OSC level (voltage, current), DC bias (voltage, current), log DC bias (voltage, current),Up / Down(sweep)

Application domains:

• Measures the dielectric constant of a material
• Characterization of many electrochemical devices such as photovoltaic cells, fuel cells and batteries

Estimated testing charges (per sample)

Impedance I / V
NITK Rs. 250/- Rs. 250/-
Academic & Research Institute* Rs. 350/- Rs. 350/-
Industry* Rs. 1000/- Rs. 1000/-

*GST(18%) extra. Above charges are for providing raw data.

For further Query Contact:


Dr. Rizwanur Rahman (Impedance Analyzer, Faculty in-charge) Mob: +91-9620169801, Email: