{"id":91896,"date":"2023-10-09T16:35:04","date_gmt":"2023-10-09T14:35:04","guid":{"rendered":"https:\/\/ageon.it\/prodotto\/sensore-par-per-lilluminazione-solare\/"},"modified":"2025-03-20T13:30:16","modified_gmt":"2025-03-20T11:30:16","slug":"sensore-par-per-lilluminazione-solare","status":"publish","type":"product","link":"https:\/\/ageon.it\/en\/prodotto\/sensore-par-per-lilluminazione-solare\/","title":{"rendered":"PAR sensor"},"content":{"rendered":"<div class=\"wpb-content-wrapper\"><p>[vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;1&#8243; bottom_padding=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;3&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243; uncode_shortcode_id=&#8221;329029&#8243;][vc_column column_width_use_pixel=&#8221;yes&#8221; gutter_size=&#8221;2&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/1&#8243; uncode_shortcode_id=&#8221;348789&#8243;][vc_tabs tab_scrolling=&#8221;yes&#8221; typography=&#8221;yes&#8221; border_100=&#8221;yes&#8221; product_from_builder=&#8221;yes&#8221; title=&#8221;Instructions&#8221;][vc_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;3&#8243; title=&#8221;Technical specifications&#8221; tab_id=&#8221;596cf3b-996a5d02-52266a5a-5a4d1071-2033560b-3b14&#8243; product_from_builder=&#8221;yes&#8221;][vc_column_text uncode_shortcode_id=&#8221;619367&#8243;]First off, here are some basics about light measurement. The PAR sensor measures light in micromoles per square meter per second. What does it mean? Simply put, it counts the number of photons &#8211; particles of light &#8211; that fall onto the detector surface each second. The detector surface is flat, so the incident light angle is crucial as well. When the sun is at its zenith (directly overhead), the sensor receives its light entirely. If radiation comes in at an angle, the sensor receives less light.[\/vc_column_text][vc_row_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_column_text uncode_shortcode_id=&#8221;183888&#8243;]The PAR (photosynthetically active radiation) sensor measures the amount of light radiation (from 400 to 700 nm) plants are exposed to. The total amount of light radiation includes sunlight plus any artificial light source from specialized bulbs or LED lamps.[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_single_image media=&#8221;90864&#8243; media_width_percent=&#8221;100&#8243; uncode_shortcode_id=&#8221;569950&#8243;][\/vc_column_inner][\/vc_row_inner][vc_column_text uncode_shortcode_id=&#8221;163946&#8243;]My PAR sensor curve is jagged. Shouldn&#8217;t it be smooth? What is happening?<\/p>\n<p>There are two factors that can make PAR curve jagged.<br \/>\nThe first one could be caused by incorrect placement. If the sensor is placed in a greenhouse structure, this casts a shadow on the PAR sensor and the curve will drop.<\/p>\n<p>The second one is more subtle. At certain times in the morning and evening, there are jumps in the measurement. It seems that the detector suddenly receives more light. Why does it happen?<br \/>\nThis is due to the clouds, which might initially seem counterintuitive. When the morning sunlight hits the detector at an angle on a cloudless day, the radiation received follows the cosine law.<br \/>\nIf there are clouds right above the detector, solar radiation can be reflected onto the sensor by the clouds, even if they do not block the sun. In this case, the detector receives the same amount of sunlight as in the first case, plus the light the cloud reflects. As a result, the PAR reading is higher.[\/vc_column_text][vc_single_image media=&#8221;90866&#8243; media_width_percent=&#8221;100&#8243; uncode_shortcode_id=&#8221;134524&#8243;][vc_row_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_column_text uncode_shortcode_id=&#8221;150528&#8243;]Photosynthetic Photon Flux Density (PPFD) measurements<br \/>\n0-4000 \u03bcmol\/s\/m\u00b2 (\u00b110% accuracy)[\/vc_column_text][vc_separator sep_color=&#8221;&#8221; uncode_shortcode_id=&#8221;195948&#8243;][vc_column_text uncode_shortcode_id=&#8221;133072&#8243;]Perfect cosine response[\/vc_column_text][vc_separator sep_color=&#8221;&#8221; uncode_shortcode_id=&#8221;195948&#8243;][vc_column_text uncode_shortcode_id=&#8221;167225&#8243;]Protection class: IP68[\/vc_column_text][vc_separator sep_color=&#8221;&#8221; uncode_shortcode_id=&#8221;202457&#8243;][vc_column_text uncode_shortcode_id=&#8221;393549&#8243;]Wireless and battery-powered[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/2&#8243;][vc_single_image media=&#8221;90868&#8243; media_width_percent=&#8221;100&#8243; uncode_shortcode_id=&#8221;192757&#8243;][\/vc_column_inner][\/vc_row_inner][\/vc_tab][vc_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;3&#8243; title=&#8221;Sensor placement&#8221; tab_id=&#8221;728596cf3b-996a5d02-52266a5a-5a4d1071-2033560b-3b14&#8243; product_from_builder=&#8221;yes&#8221;][vc_row_inner][vc_column_inner width=&#8221;2\/3&#8243;][vc_column_text uncode_shortcode_id=&#8221;152430&#8243;]The PAR sensor should be positioned above the plants canopy, in a position that ensures uninterrupted solar radiation exposure throughout the day.<\/p>\n<p>The support structure includes a bubble level, which is essential to ensure the sensor is level. This way, you will avoid losing light portions and underestimating the PPFD.<br \/>\nBased on this sensor data and sophisticated cloud calculations, you can obtain the instantaneous (W\/m2) and the daily cumulative radiation (J\/cm2).[\/vc_column_text][\/vc_column_inner][vc_column_inner width=&#8221;1\/3&#8243;][vc_single_image media=&#8221;90870&#8243; media_width_percent=&#8221;100&#8243; uncode_shortcode_id=&#8221;495227&#8243;][\/vc_column_inner][\/vc_row_inner][\/vc_tab][vc_tab gutter_size=&#8221;2&#8243; column_padding=&#8221;3&#8243; title=&#8221;Downloads&#8221; tab_id=&#8221;6728596cf3b-996a5d02-52266a5a-5a4d1071-2033560b-3b14&#8243; product_from_builder=&#8221;yes&#8221;][vc_row_inner][vc_column_inner column_width_use_pixel=&#8221;yes&#8221; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/1&#8243; column_width_pixel=&#8221;700&#8243;][vc_custom_heading heading_semantic=&#8221;h3&#8243; sub_lead=&#8221;yes&#8221;]Documents:[\/vc_custom_heading][vc_empty_space empty_h=&#8221;1&#8243;][\/vc_column_inner][\/vc_row_inner][vc_separator sep_color=&#8221;,Default&#8221;][vc_row_inner][vc_column_inner column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/3&#8243;][vc_custom_heading text_size=&#8221;h5&#8243;]<strong>Brochure<\/strong>[\/vc_custom_heading][\/vc_column_inner][vc_column_inner column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/3&#8243;][vc_custom_heading text_size=&#8221;h5&#8243;]PDF[\/vc_custom_heading][\/vc_column_inner][vc_column_inner column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/3&#8243;][vc_column_text uncode_shortcode_id=&#8221;207285&#8243;]<a href=\"https:\/\/ageon.it\/storage\/2023\/07\/manuale_linee_guida_installazione_in_serra-1.pdf\"><img decoding=\"async\" class=\"\" src=\"\/wp-content\/uploads\/2020\/11\/icona_acrobat.gif\" alt=\"\" width=\"24\" height=\"24\" border=\"0\" hspace=\"0.5\" vspace=\"0.5\" \/><\/a>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_separator sep_color=&#8221;,Default&#8221;][vc_row_inner][vc_column_inner column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/3&#8243;][vc_custom_heading text_size=&#8221;h5&#8243; uncode_shortcode_id=&#8221;181975&#8243;]<strong>Datasheet:<\/strong>[\/vc_custom_heading][\/vc_column_inner][vc_column_inner column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/3&#8243;][vc_custom_heading text_size=&#8221;h5&#8243;]PDF[\/vc_custom_heading][\/vc_column_inner][vc_column_inner column_width_percent=&#8221;100&#8243; align_horizontal=&#8221;align_center&#8221; gutter_size=&#8221;3&#8243; overlay_alpha=&#8221;50&#8243; shift_x=&#8221;0&#8243; shift_y=&#8221;0&#8243; shift_y_down=&#8221;0&#8243; z_index=&#8221;0&#8243; medium_width=&#8221;0&#8243; mobile_width=&#8221;0&#8243; width=&#8221;1\/3&#8243;][vc_column_text uncode_shortcode_id=&#8221;583768&#8243;]<img decoding=\"async\" class=\"\" src=\"\/wp-content\/uploads\/2020\/11\/icona_acrobat.gif\" alt=\"\" width=\"24\" height=\"24\" border=\"0\" hspace=\"0.5\" vspace=\"0.5\" \/>[\/vc_column_text][\/vc_column_inner][\/vc_row_inner][vc_separator sep_color=&#8221;,Default&#8221;][\/vc_tab][\/vc_tabs][\/vc_column][\/vc_row][vc_row row_height_percent=&#8221;0&#8243; override_padding=&#8221;yes&#8221; h_padding=&#8221;2&#8243; top_padding=&#8221;1&#8243; bottom_padding=&#8221;5&#8243; overlay_alpha=&#8221;50&#8243; gutter_size=&#8221;2&#8243; column_width_percent=&#8221;100&#8243; shift_y=&#8221;0&#8243; z_index=&#8221;0&#8243;][vc_column column_width_percent=&#8221;100&#8243; gutter_size=&#8221;4&#8243; overlay_alpha=&#8221;50&#8243; 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carousel_navspeed=&#8221;400&#8243; carousel_loop=&#8221;yes&#8221; carousel_dots=&#8221;yes&#8221; carousel_dots_space=&#8221;yes&#8221; carousel_dots_mobile=&#8221;yes&#8221; stage_padding=&#8221;0&#8243; single_back_color=&#8221;color-lxmt&#8221; single_overlay_color=&#8221;color-wvjs&#8221; single_overlay_opacity=&#8221;50&#8243; single_text_visible=&#8221;yes&#8221; single_text_anim=&#8221;no&#8221; single_padding=&#8221;2&#8243; single_title_dimension=&#8221;h5&#8243; single_border=&#8221;yes&#8221; uncode_shortcode_id=&#8221;140102&#8243;][\/vc_column][\/vc_row]<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>This sensor measures photosynthetically active radiation to determine the amount of light plants are exposed to. <a title=\"MyAgeon \u2013 your greenhouse platform\" href=\"https:\/\/ageon.it\/en\/myageon-your-greenhouse-platform\/\" target=\"_blank\" rel=\"noopener\"><strong>MyAgeon<\/strong><\/a> platform allows you to view this data converted into instantaneous (W\/m2) and cumulative energy (J\/cm2)\u00a0.<\/p>\n","protected":false},"featured_media":89611,"template":"","meta":[],"product_cat":[375],"product_tag":[],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/ageon.it\/en\/wp-json\/wp\/v2\/product\/91896"}],"collection":[{"href":"https:\/\/ageon.it\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/ageon.it\/en\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ageon.it\/en\/wp-json\/wp\/v2\/media\/89611"}],"wp:attachment":[{"href":"https:\/\/ageon.it\/en\/wp-json\/wp\/v2\/media?parent=91896"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/ageon.it\/en\/wp-json\/wp\/v2\/product_cat?post=91896"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/ageon.it\/en\/wp-json\/wp\/v2\/product_tag?post=91896"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}