PSI, octobre 1975
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Le Projet Starlight International est ravi d'avoir acheté un magnétomètre enregistreur automatique de haute qualité (voir photo ci-contre) fabriqué par Precision Monitoring Systems (P.M.S.) de San Diego, Californie, spécifiquement pour une application à la recherche sur les ovnis. Nous comprenons, en fait, que l'unité obtenue est le tout 1er modèle de production (non prototype) que le groupé dédié d'ingénieur et de physiciens a produit.
Notre unité "Model 100", complètement autonome, rechargeable et alimenté par batterie, est conçu pour la détection, l'enregistrement et la corrélation en Temps Universel de phénomènes électromagnétiques qui pourraient être associés à certains ovnis au moins. Le système nous est arrivé complet avec une tête de capteur de magnétomètre P.M.S. Model 105. Des provisions sont également incorporées pour extension via des entrées de capteurs fournis par l'utilisateur ou avec des accessoires P.M.S.
Un récepteur WWVB integral fournit les informations de jour de l'année, l'heure et minutes dans un format binaire, permettant une corrélation très précise de l'ensemble des données des capteurs avec le Temps Universel.
Sensor input and timing data are converted to FM-modulated IRIG sub- carriers and, along with a 6800 Hz reference frequency, automatically recorded on a commercial one-eighth inch tape cassette. An analysis of recorded data can be provided by P.M.S. at a very nominal charge, or it can be done elsewhere.
Some of the special features of the magnetometer are: continuous operation when desired, with optional mode for automatic triggering by either magnetic phenomena or external trigger inputs: an output for triggering of external equipment; metered battery voltage: WWVB signal strength and sensor output level indicators; a TTL BCD format Universal Time output; an integral battery charger/eliminator; auditory monitoring of magnetometer operation; automatic shut-off after go seconds if triggering stimulus does not recur (conserving battery and tape); system expansion provision; adjustable magnetometer gain; adjustable system-trigger sensitivity: and a noise-filter capacity.
Because the P.M.S. Model 100 was designed for automatic detection and recording of electromagnetic 'signatures' reportedly associated with some UFOs, it was decided that the unit providing the best probability of recording magnetic profiles recognizable as being anomalistic would be one with a low false alarm rate. Thus, a steeply rolled-off frequency response of 0.1 to beyond 10 Hz (110 dB, 60 Hz rejection) was chosen to allow high amplification without interference from man-made sources at the high end or natural geomagnetic field variations at the low end. The P.M.S. Model 105 magnetometer head covers the afore-described band with an output of 40 mV/gamma Hz in low gain mode or 800 mV/gamma Hz in high gain mode. Overall system detection threshold is adjustable between 0.13 gamma.Hz and 350 gamma.Hz.
The Project Starlight staff congratulates the P.M.S. organization, not only for a well-done job on the unit produced for us, but also for P.M.S.'s pioneering and precedent-setting research and development work, which promises to develop a spectrum of detection, monitoring and recording devices engineered specifically to meet the rather difficult-to-define needs of the new field of instrumented UFO research.
Because the Precision Monitoring Systems recording magnetometer and sensor head are the unique and valuable inventions of that San Diego organization, P.S.l. does not deem it appropriate to publish the schematics of those devices. Persons interested in the magnetometer and/or its sensor head should write directly to Precision Monitoring Systems, P. 0. Box 15064, San Diego, California, 92115. If you are technically qualified or competent in areas of the physical sciences, and dedicated to the scientific side of UFO research, or if you are interested in financing research and development of instrumentation for UFO research, or if you want to purchase the type of high-quality equipment P.M.S. is interested in producing, then the P.M.S. people would probably enjoy hearing from you.
P.M.S.'s research and development of instruments for UFO-effect detection, monitoring, and recording, seem to form an important complement to P.S.I.'s on-site application of sophisticated equipment in UFO monitoring and signaling studies. Now that the P.S.I. laboratory building is completed at the isolated research site, it is probable that additional P.M.S. equipment will be added as it becomes available.
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