[1] [1] VENUGOPAL A, AGRAWAL A, PRABHU S V. Review on vortex flowmeter-designer perspective[J]. Sensors and Actuators A: Physical, 2011, 170: 8-23.

[2] [2] CHA J E, AHN Y C, KIM M H. Flow measurement with an electromagnetic flowmeter in two-phase bubbly and slug flow regimes[J]. Flow Measurement & Instrumentation, 2002, 12(5): 329-339.

[3] [3] LIGEZA P. An investigation of a constant-bandwidth hot-wire anemo-meter[J]. Flow Measurement & Instrumentation, 2009, 20(3): 116-121.

[4] [4] WUCHANG C A. Flow measuring instrument applications and developing trends[J]. Process Automation Instrumentation, 2006, 27(7): 71-76.

[5] [5] ODA S, ANZAI M, UEMATSU S, et al. A silicon micromachined flow sensor using thermopiles for heat transfer measurements[J]. IEEE Transactions on Instrumentation & Measurement, 2003, 52(4): 1155-1159.

[6] [6] RASMUSSEN A, ZAGHLOUL M E. In the flow with MEMS[J]. IEEE Circuits & Devices Magazine, 1998, 14(4): 12-25.

[7] [7] WANG Y H, LEE C Y, CHIANG C M. A MEMS-based air flow sensor with a free-standing micro-cantilever structure[J]. Sensors, 2007, 7(10): 2389-2401.

[8] [8] LEE C L, HONG W Y, HSIEH H J, et al. Air Gap Fiber Fabry-Perot interferometer for highly sensitive micro-airflow sensing[J]. IEEE Photonics Technology Letters, 2011, 23(13): 905-907.

[9] [9] JEWART C, MCMILLEN B, CHO S K, et al. X-probe flow sensor using self-powered active fiber Bragg gratings[J]. Sensors and Actuators A: Physical, 2006, 127(1): 63-68.

[10] [10] BYRNE G D, JAMES S W, TATAM R P. A Bragg grating based fibre optic reference beam laser Doppler anemometer[J]. Measurement Science & Technology. 2001, 12(7): 909-913.

[11] [11] HSIAO Y L, LI C M, CHIANG T C, et al. 16th Opto-electronics and communications conference, July 4-8, 2011[C]. Kaohsiung: IEEE, 2011.

[12] [12] CASHDOLLAR L J, CHEN K P. Fiber Bragg grating flow sensors powered by in-fiber light[J]. IEEE Sensors Journal, 2005, 5(6): 1327-1331.

[13] [13] CALDAS P, JORGE P A S, REGO G, et al. Fiber optic hot-wire flowmeter based on a metallic coated hybrid long period grating/fiber Bragg grating structure[J]. Appl. Opt., 2011, 50(17): 2738-2743.

[14] [14] WANG X H, DONG X Y, ZHOU Y, et al. Hot-wire anemometer based on silver-coated fiber Bragg grating assisted by No-core fiber[J]. IEEE Photonics Technology Letters, 2013, 25(24): 2458-2461.

[15] [15] DONG X Y, ZHOU Y, ZHOU W J, et al. Compact anemometer using silver-coated fiber Bragg grating[J]. IEEE Photonics Journal, 2012, 4(5): 1381-1386.

[17] [17] CHANG Z S. The available range of Newton's law of cooling[J]. College Physics, 2000, 10(9): 55-59.

[18] [18] BRUUN H H. Hot-wire anemometry: Principles and signal analysis[M]. Oxford: Measurement Science and Technology, 1996.

[19] [19] LOMAS C G, KORMAN M S. Fundamentals of hot wire anemometry[M]. Cambridge: Cambridge University Press, 1986.

[20] [20] WANG X H, DONG X Y, ZHOU Y, et al. Optical fiber anemometer using silver-coated fiber Bragg grating and bitaper[J]. Sensors and Actuators A: Physical, 2014, 214: 230-233.

[21] [21] YAN S C, LIU Z Y, LI C, et al. “Hot-wire” microfluidic flowmeter based on a micro fiber coupler[J]. Optics Letters, 2016, 41(24): 5680-5683.