{"id":104,"date":"2024-01-01T14:16:14","date_gmt":"2024-01-01T13:16:14","guid":{"rendered":"https:\/\/www.albertenmiriam.nl\/wordpress\/?page_id=104"},"modified":"2024-01-01T15:51:22","modified_gmt":"2024-01-01T14:51:22","slug":"trigger-print","status":"publish","type":"page","link":"https:\/\/www.albertenmiriam.nl\/wordpress\/homepage\/electronic-designs\/trigger-print\/","title":{"rendered":"Trigger print"},"content":{"rendered":"\n

If a photo-camera is used to digitize a film the camera should be triggered on the correct time point to take a picture of one positive of the film. Triggering the camera 16 times a second would follow the film projector running at 16 Hz (pictures\/second). By using a magnet and a Hall sensor this trigger pulse can be easily generated. This trigger print holds all the electronics needed to generate a trigger pulse to trigger a photo-camera. <\/p>\n\n\n\n

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The trigger pcb with 2 wires for the power<\/figcaption><\/figure>\n\n\n\n

The PCB starts with some AC to DC conversion (PCB can also be driven by DC), a small powersupply, a Hall sensor (at the bottom-side of the PCB) , a LED to show the status of the Hall sensor and an output stage to trigger the camera. Every projector is different and to prevent creating a lot of different board’s, it was decided to create only one PCB and use metal strips to position the board of the right spot).<\/p>\n\n\n\n

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A cinch (jack) connector can be used for the trigger cable. Shielded audio cable can be used to transport the trigger signal. Connections for the trigger output are H3 & H4.<\/p>\n\n\n\n

The size of the pcb is only 33 * 14.5 mm<\/p>\n","protected":false},"excerpt":{"rendered":"

If a photo-camera is used to digitize a film the camera should be triggered on the correct time point to take a picture of one positive of the film. Triggering the camera 16 times a second would follow the film projector running at 16 Hz (pictures\/second). By using a magnet and a Hall sensor this… Continue reading Trigger print<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"parent":53,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"class_list":["post-104","page","type-page","status-publish","hentry","entry"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.albertenmiriam.nl\/wordpress\/wp-json\/wp\/v2\/pages\/104","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.albertenmiriam.nl\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.albertenmiriam.nl\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.albertenmiriam.nl\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.albertenmiriam.nl\/wordpress\/wp-json\/wp\/v2\/comments?post=104"}],"version-history":[{"count":6,"href":"https:\/\/www.albertenmiriam.nl\/wordpress\/wp-json\/wp\/v2\/pages\/104\/revisions"}],"predecessor-version":[{"id":116,"href":"https:\/\/www.albertenmiriam.nl\/wordpress\/wp-json\/wp\/v2\/pages\/104\/revisions\/116"}],"up":[{"embeddable":true,"href":"https:\/\/www.albertenmiriam.nl\/wordpress\/wp-json\/wp\/v2\/pages\/53"}],"wp:attachment":[{"href":"https:\/\/www.albertenmiriam.nl\/wordpress\/wp-json\/wp\/v2\/media?parent=104"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}