. Aerographer's Mate 3 & 2. United States. Navy; Meteorology; Oceanography. Figure 5-14. —Projector, transmissometer ML-47l/GMQ-10( ) front and side views. photoelectric detector within the telescope, which generates a pulse signal. At the same time the receiver excludes most of the light from the background. The pulse rate is pro- portional to the amount of light falling on the receiver. (See fig. 5-15.) The AMPLIFIER-POWER SUPPLY unitpro- vides regulated voltage for the photoelectric receiver and amplifies the pulse signal of the receiver for transmission to the indicator. A mete
. Aerographer's Mate 3 & 2. United States. Navy; Meteorology; Oceanography. Figure 5-14. —Projector, transmissometer ML-47l/GMQ-10( ) front and side views. photoelectric detector within the telescope, which generates a pulse signal. At the same time the receiver excludes most of the light from the background. The pulse rate is pro- portional to the amount of light falling on the receiver. (See fig. 5-15.) The AMPLIFIER-POWER SUPPLY unitpro- vides regulated voltage for the photoelectric receiver and amplifies the pulse signal of the receiver for transmission to the indicator. A metering unit is also provided to facilitate field adjustment. The INDICATOR is essentially a frequency meter which converts the pulse signal to a direct current which is proportional to the pulse rate and hence to the transmission. The RECORDER provides upon a strip chart a continuous record of the output of the indicator. An auxiliary pen indicates the sensitivity range on which the indicator is operating. In all models of Transmissometer AN/GMQ- 10( ), the Indicator and recorder are housed in a single unit, which is known as the indicator- recorder. The CABLE TERMINAL CHAMBERS, of which there are two with each set, act as a housing and a junction for all cabling used in the set. One cable terminal chamber is mounted on the projector stand, and the other is mounted on the receiver Figure 5-15.— Receiver, transmissometer R-970/GMQ-10( ). A typical installation of the transmissometer, showing the various component parts, is shown in figure 5-16. Operation Since the initial starting of the transmis- someter Involves several calibrations and ad- justments not ordinarily performed by Aerographer's Mates, the starting procedures for the set are not given here. Once the set Is in operation, no further on-off switching is necessary. When the set is placed out of operation or is not operating properly, electronics personnel usually handle the shut- down, repair, and re
Size: 2341px × 1067px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, booksubjectmeteorology, booksubjectunitedstates
