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Minimum Resolvable Temperature

Minimum resolvable temperature (MRT) The smallest blackbody equivalent target temperature difference that can be observed temperature sensitivity. (Example MRT = 0.1°C at 25°C temp.)... [Pg.39]

Temperature sensitivity, also called thermal resolution or NETD for a radiation thermometer, is the smallest temperature ehange at the target surface that can be clearly sensed at the output of the instrument. For an imaging system, the term minimum resolvable temperature (MRT) or minimum resolvable temperature difference (MRTD) defines temperature sensitivity but also implies spatial resolution (IFOV). MRTD is expressed as a function of angular spatial frequency. [Pg.40]

Minimum resolvable temperature (difference), MRT(D) - Thermal resolution thermal sensitivity—the smallest temperature difference that an instmment can clearly distinguish out of the noise, taking into account characteristics of the display and the subjective interpretation of the operator. [Pg.161]

Sensitivity - See MRTD, Minimum resolvable temperature difference. [Pg.164]

Modulation transfer function (MTF) How the responsivity varies as smaller and smaller targets are focused on the detector Minimum resolvable temperature difference (MRTD) The minimum temperature difference that we can resolve - this is a function of spatial frequency (small or finely spaced features are harder to resolve than large, widely spaced ones) it combines the noise equivalent temperature difference and the MTF... [Pg.12]

MRTD MRTD (minimum resolvable temperature difference) quantifies how well we can resolve (distinguish) small temperature differences between small or closely spaced features. It is a function of the spatial frequency k. Predicted MRTD(fe) is the NEED divided by the MTE(A ), where the MTF is the total MTF of the system. If we can predict the NEDT and MTF of the components, then we can predict the MRTD of the system. [Pg.137]

Unique targets are required for two other tests of imaging systems The minimum resolvable temperature difference (MRDT) test uses a set of standard four-bar targets, and the triangle orientation determination test uses sets of four triangles. The tests and the associated targets are described in Section 10.5.3. [Pg.284]

Clearly, many factors in addition to site temperature affect the 5 O and 5D of the water in a packef of precipitation delivered to a site. The or 5D preserved at a site is a weighted average of all the packets of precipitation delivered over some time interval. The relevant interval or the minimum resolvable interval may be determined by human analysts (sample size), but may be determined by physical processes that mix or... [Pg.538]

This is sometimes called Minimum Resolvable Differential Temperature (MRdT) or Minimum Resolvable Delta T (MRDT). Do not confuse MRTD with NETD (Noise Equivalent Temperature Difference). [Pg.366]

The naphtha will create a thick orange emulsion with small bubbles that sometimes takes over 48 hours to separate. Always wait a few days before trying other methods to break down the emulsion. Keeping the naphtha warm will increase the amount of alkaloids it carries with it during each extraction. To help keep the jar warm, place it in a pot surrounded by warm water. Naphtha floats. If DCM is used for our extraction solvent in STEP 7, we will have a faster resolving emulsion than naphtha (less than an hour in some cases.) The solvent will turn a darker color, usually reddish-brown or yellow. DCM sinks. Allow a minimum of 24 hours for the contents of the jar to react completely. If using methanol allow a minimum of 4 days warmed to room-temperature for reactions to complete. [Pg.20]

The main interest in (212) and related dibenzo and dinaphtho compounds is in the conformational barrier to racemization of optically active derivatives, which requires deformation of the tub to the planar form. The compounds have proven to be optically stable at very high temperatures (64JCS2326). A minimum AH value of 71 kJ mol-1 has been calculated for racemization of the resolved 3,10-dicarboxylic esters of (212). Thermal decomposition sets in at 240 °C and leads to the phenanthridine (214) and benzonitrile, presumably via a diradical (213) (63JOC3007). [Pg.675]


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