Teledyne LeCroy HDO4054A

to observe ultrasonic echo signal

to digitize echo signal for the vector-type phase detection method (frequency-constant ultrasonic measurement)

KEYSIGHT EXG N5171B (~1 GHz)

to generate a high-frequency signal

using frequency modulation for the feedback-type phase detection method (wavelength-constant ultrasonic measurement)

Agilent (KEYSIGHT) 8648A (~1 GHz)

to generate a reference signal for the feedback-type phase detection method 

TUJICON (custom order)

to integrate phase deviation for the feedback-type phase detection method

Agilent (KEYSIGHT) 81101A (50 MHz)

to generate pulse signal

width ~ 500 ns, freq. ~ 1 kHz

KEYSIGHT 53220A (350 MHz)

to observe ultrasonic frequency for the feedback-type phase detection method

R&K AA000110-4040-R OP-R6 (1 - 1000 MHz)

to amplify ultrasonic echo signal from a sample

max: +40 dB (10 W)

Leica A60F

Flex arm

zoom x5 - x30

Handmade probe with two coaxial cables

Pt-103 thermometer (77 K < Temp. < 390 K)

KEYSIGHT U1232A

to check contact