BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin film type temperature measuring array, and is related to a thin film RTD array manufactured by MEMS technology, which is installed on a phantom used for heat invasive treatment planning to measure temperature. In one aspect of the present invention, there is provided a temperature measuring device comprising: a plurality of thermometer arrays connected in series； A data collecting device including a plurality of voltage sensing units arranged in units of each of the plurality of temperature measuring device arrays to measure voltages generated at each of the plurality of temperature measuring devices； And a controller configured to determine a temperature change inside a phantom to which external energy is irradiated, using a plurality of voltage values sensed by the data collection device. It further comprises a temperature measuring temperature array array connected in series, the power supply for supplying power to the temperature measuring device, wherein the plurality of the temperature measurement array is disposed on a thin film, the external energy is focused ultrasound (High Intensity Focused Ultrasound , HIFU) is irradiated for treatment, the thickness of the temperature measuring device is equal to or smaller than the wavelength of the ultrasonic wave used for the focused ultrasound therapy, and the resistance of each of the plurality of temperature-measuring array according to the degree to which the external energy is irradiated The voltage generated in each of the plurality of thermometer arrays may vary according to the changed resistance.본 발명은 박막형 온도 측정 어레이에 관한 것으로, 열을 이용한 비침습적 치료 계획에 이용되는 팬텀에 설치되어 온도를 측정할 수 있는 MEMS 기술로 제작된 Thin film RTD array에 관한 것이다. 본 발명의 일 양상인 온도측정장치에 있어서, 직렬로 연결되는 복수의 측온체 어레이； 복수의 측온체 각각에서 발생된 전압을 측정하기 위해, 복수의 상기 측온체 어레이 각각의 단위로 배치된 복수의 전압 감지부를 포함하는 데이터수집장치； 및 상기 데이터수집장치를 통해 감지된 복수의 전압값을 이용하여, 외부 에너지가 조사되는 팬텀(phantom) 내부의 온도 변화를 판단하는 제어
