瞬态温度测量系统

Transient temperature measurement system QUEENTEST FOR TESING Coaxial Thermocouple MCT（快速响应热电偶） Micro Thermocouples for High Frequency Measurements Adaptable to any Surface Shapes Typical Applications This coaxial thermocouple is designed for measurements of high frequency surface temperature changes during hypersonic wind tunnel experiments. From the surface temperature signal the convective heat flux is deduced. The probe has to be seen as a half infinite body. The sensor measures the model surface temperature change. With the knowledge of the wall material the heat flux can be calculated. The probe is small enough for mounting in the wing tip and can be shape adapted to the surface by grinding. Alternatively the conjunction can be reached by a vacuum disposition of a metal coating, but with the disadvantage of a fixed geometry. MCT48 The application of this thermocouple is not only limited to wind tunnel investigations, it can be used for all cases where fast surface temperature measurements are required. With its fast response time (only some μs) it can be used in engines, jet turbine engines etc. without disturbance of stream. This coaxial thermocouple has demonstrated its reliability and durability in multiple experiments in Germany and worldwide. In cases of very high temperatures the surface will oxidise and lead to signal loss. A new grinding with sand paper renovates the probe for nearly unlimited lifetime. Durability without renovation: 35 min at 615°C and 8 min. by 715°C. For much longer durability use the metal coated version. MCT 19 and 36 Transient temperature measurement system QUEENTEST FOR TESING MCT 19 wall mount with glue Fast sensor respond in water Technical Data Type of thermocouple: Type E Material: Chromel - Constantan, coaxial Temperature range: - 200 to 900 °C Smallest temperature change: 0.5 K Heat flux: 20 KW/m² to 20 MW/m² Response time: 3 μs √ ρ c k About 9500 W √s/m²K Diameter: 1.9, 3.6 and 4.8 mm Size: MCT 19: O 1.9 x 26 mm MCT 36: O 3.6 mm x 17 mm MCTB 48: O 4.8 x 25 mm Sensor MCT 19, 36 and 48 can be shortened in the area of their diameter 1.9, 3.6 and 4.8 mm. Sensitivity: About 63 μV/K, (s. IEC-584 T1) Calibration: Calibrated by the University of Aachen Tip: Can be individually shaped by the user. Specials: For the thermocouple with an outer diameter of 4.8 mm a coaxial borehole with d = 0.8 mm for connecting a pressure probe with a diameter of 1.9 mm is possible (e.g. Kulite XCQ-080 or Müller M60-1). Connection: Via2mtemperatureresistancecoaxialcablewithBNCpos Amplification: AmplifierisneededWerecommendourMFA1000 Transient temperature measurement system QUEENTEST FOR TESING Article-No. 100-001-1: MCT 19, diameter 1.9 mm Article-No. 100-001-2: MCT 36, diameter. 3.6 mm Article-No. 100-001-3: MCTB 48, diameter 4.8 mm with coaxial borehole for pressure probe connection. Bore hole fits for sensor M60-1 with thread (100-201-2). Article-No. 100-001-4: Surcharge for metallic surface Article-No. 100-001-5: Surcharge for a short 10 cm cable plus connection to a 2 m extension cable with BNC pos. Transient temperature measurement system QUEENTEST FOR TESING  16 bit A/D converter board  2 synchronous channels with seperate A/D  Maximum sampling rate 3 MS/s on 2 channels  Extremely high dynamic range  32 Bit 66 MHz PCI interface  compatible to 32/64 bit PCI and PCI-X  compatible to 3,3V and 5V PCI I/O voltage  max data transfer 245 MByte/s  Up to 2 GSample memory  8 input ranges between ±50 mV and ±10 V  Window/pulse width/re-arm/OR/AND trigger  Automatic offset calibration  Synchronisation to multi-board system possible  ABA mode available as an option  Option :4 or 8 channels