Measuring apparatus and method for the determination of temperature and / or pressure, and using the measurement apparatus

Measuring device for determining temperature and / or pressure with at least - a transmitter / receiver unit (S / E) of ultrasonic pulses (50, 61, 62, 63, 70, 80) and - a means of reflection of ultrasonic pulses (50, 51a, 53a), in which - at least one ultrasonic pulse (50) from the transmission / reception unit (S / E) through a one of the transmission / reception unit (S / E) facing the object surface (3) and one of the transmission / reception unit (S / E) facing away from the object surface (4) exhibiting property (2) can be emitted therethrough in the means of reflection, - the object (2) for ultrasonic pulses (50, 61, 62, 63, 70, 80) is at least partially transmissive and - the (53a 50, 51a) can be reflected at least one ultrasound pulse temperature correlated by means of reflection in the direction of transmission / reception unit (S / E), characterized, in that - the means for reflection at the transmission / reception unit (S / E) facing away from the object surface (4) is attached.