TTG - Test Target Generator
The Thermal Imager Test Target Generator is designed for measuring the performance of complete thermal imaging systems. It may be used as a stand alone instrument for measuring MRTD and MDTD subjectively, or as part of a system including a measurement device and the I-SITE software package for measuring these parameters objectively.
The Thermal Imager Test Target Generator consists of a variable temperature source and target. In normal operation, the source maintains a very precisely controlled temperature difference with respect to the target. Radiation from the source passes through one or more apertures in the target to produce a thermal contrast in the object space of the system under test. The temperature difference corresponding to a given contrast in the image is then the MRTD or MDTD for that particular target.
Applications
- High Emission
- High Uniformity
- High Slew Rate
- Positive and Negative Temperature Difference
- Absolute or Differential Control
Will facilitate the following measurements:
- Modulation Transfer Function (MTF)
- Line Spread Function (LSF)
- Phase Transfer Function (PTF)
- Signal Transfer Function (SiTF)
- Noise Power Function (NPS)
- Root Mean Square Function (RMS Noise)
- Noise Equivalent Temperature Difference (NETD)
- Minimum Resolvable Temperature Difference (MRTD)
- Minimum Detectable Temperature Difference (MDTD)