![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-measurement-Ani-1.gif\")
<\/p>\n<\/p>\n
Nuclear (gamma) level measurement technology has been applied effectively for measuring liquids and solids for more than 30 years. A typical system consists of a gamma ray source, a detector and microprocessor. The gamma source is normally mounted outside the vessel<\/a>, and emits energy through the walls and contents, collimated towards the detector, which is mounted on the opposite side. The gamma energy emitted reaches the detector when the vessel is empty. As the process level rises in the vessel, energy reaching the detector will decrease in an inversely proportional relationship to the level. A computer processes the detector signal and transmits the process variable as 4-20 mA analog or digital fieldbus signal.<\/p>\n Gamma technologies are an attractive option to users because they can usually be mounted external to the tank or vessel<\/a>, allowing for installation and maintenance without modifications to the tank or interrupting the process. With pressurized or exotic alloy vessels<\/a>, this can be a major advantage since adding openings to accommodate a sensor may not be practical.<\/p>\n *<\/p>\n \u062a\u0642\u0646\u064a\u0629 \u0642\u064a\u0627\u0633 \u0627\u0644\u0645\u0646\u0633\u0648\u0628 Level Measurement<\/span>\u00a0\u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0635\u062f\u0631 \u0625\u0634\u0639\u0627\u0639 ( \u0623\u0634\u0639\u0629 \u062c\u0627\u0645\u0627 Gamma<\/span>\u00a0) \u0645\u0633\u062a\u062e\u062f\u0645\u0629 \u0628\u0634\u0643\u0644 \u0641\u0639\u0627\u0644 \u0644\u0642\u064a\u0627\u0633 \u0645\u0646\u0633\u0648\u0628 \u0627\u0644\u0633\u0648\u0627\u0626\u0644 \u0648\u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u0635\u0644\u0628\u0629 \u0644\u0623\u0643\u062b\u0631 \u0645\u0646 30 \u0639\u0627\u0645\u064b\u0627. \u0648\u062a\u062a\u0643\u0648\u0646 \u0645\u0646\u0638\u0648\u0645\u0629 \u0627\u0644\u0642\u064a\u0627\u0633 \u0627\u0644\u0646\u0645\u0648\u0630\u062c\u064a\u0629 \u0645\u0646 \u0645\u0635\u062f\u0631 \u0644\u0623\u0634\u0639\u0629 \u062c\u0627\u0645\u0627 Gamma<\/span>\u00a0\u0648\u0643\u0627\u0634\u0641 Detector<\/span>\u00a0\u0648\u0645\u0639\u0627\u0644\u062c \u062f\u0642\u064a\u0642 Microprocessor<\/span>\u00a0.<\/p>\n \u0639\u0627\u062f\u0629\u064b \u0645\u0627 \u064a\u062a\u0645 \u062a\u0631\u0643\u064a\u0628 \u0645\u0635\u062f\u0631 \u0623\u0634\u0639\u0629 \u062c\u0627\u0645\u0627 Gamma<\/span>\u00a0\u062e\u0627\u0631\u062c \u0627\u0644\u0648\u0639\u0627\u0621 Vessel<\/span><\/a>\u00a0\u0623\u0648 \u0627\u0644\u062e\u0632\u0627\u0646 Tank<\/span>\u00a0\u060c \u0648\u064a\u0637\u0644\u0642 \u0627\u0644\u0645\u0635\u062f\u0631 \u0627\u0644\u0623\u0634\u0639\u0629 \u0627\u0644\u062a\u064a \u062a\u0642\u0648\u0645 \u0628\u0627\u062e\u062a\u0631\u0627\u0642 \u062c\u062f\u0627\u0631 \u0627\u0644\u062e\u0632\u0627\u0646 \u0648\u0627\u062e\u062a\u0631\u0627\u0642 \u0627\u0644\u0645\u0648\u0627\u062f \u0627\u0644\u0645\u062e\u0632\u0646\u0629 \u0628\u0627\u0644\u062f\u0627\u062e\u0644 \u0644\u062a\u0633\u0642\u0637 \u0639\u0644\u064a \u0627\u0644\u0643\u0627\u0634\u0641 Detector<\/span>\u00a0\u0627\u0644\u0645\u062b\u0628\u062a \u062e\u0627\u0631\u062c \u0627\u0644\u062e\u0632\u0627\u0646 \u0641\u064a \u0627\u0644\u062c\u0647\u0629 \u0627\u0644\u0645\u0642\u0627\u0628\u0644\u0629 \u0639\u0644\u064a \u0627\u0644\u062c\u0627\u0646\u0628 \u0627\u0644\u0622\u062e\u0631 .<\/p>\n \u00a0\u062a\u0635\u0644 \u0637\u0627\u0642\u0629 \u0623\u0634\u0639\u0629 \u062c\u0627\u0645\u0627 \u0627\u0644\u0645\u0646\u0628\u0639\u062b\u0629 \u0643\u0627\u0645\u0644\u0629 \u0625\u0644\u0649 \u0627\u0644\u0643\u0627\u0634\u0641 \u0639\u0646\u062f\u0645\u0627 \u064a\u0643\u0648\u0646 \u0627\u0644\u062e\u0632\u0627\u0646 \u0641\u0627\u0631\u063a\u064b\u0627. \u0648\u0645\u0639 \u0627\u0631\u062a\u0641\u0627\u0639 \u0645\u0633\u062a\u0648\u0649 \u0627\u0644\u0645\u0646\u0633\u0648\u0628 \u062f\u0627\u062e\u0644 \u0627\u0644\u062e\u0632\u0627\u0646 \u060c \u062a\u0646\u062e\u0641\u0636 \u0627\u0644\u0637\u0627\u0642\u0629 \u0627\u0644\u062a\u064a \u062a\u0635\u0644 \u0625\u0644\u0649 \u0627\u0644\u0643\u0627\u0634\u0641 \u0641\u064a \u0639\u0644\u0627\u0642\u0629 \u062a\u0646\u0627\u0633\u0628\u064a\u0629 \u0639\u0643\u0633\u064a\u0629 \u0645\u0639 \u0627\u0644\u0645\u0633\u062a\u0648\u0649 . \u0648\u064a\u0642\u0648\u0645 \u062c\u0647\u0627\u0632 \u0627\u0644\u0643\u0645\u0628\u064a\u0648\u062a\u0631 \u0628\u0645\u0639\u0627\u0644\u062c\u0629 \u0627\u0644\u0625\u0634\u0627\u0631\u0629 \u0627\u0644\u0646\u0627\u062a\u062c\u0629 \u0645\u0646 \u0627\u0644\u0643\u0627\u0634\u0641 \u0648\u064a\u0646\u062a\u062c \u0627\u0644\u0643\u0645\u0628\u064a\u0648\u062a\u0631 \u0642\u064a\u0645\u0629 \u0627\u0644\u0642\u064a\u0627\u0633 \u0641\u064a \u0635\u0648\u0631\u0629 \u0625\u0634\u0627\u0631\u0629 \u062a\u0646\u0627\u0638\u0631\u064a\u0629 Analog Signal<\/span>\u00a0\u0639\u0644\u064a \u0635\u0648\u0631\u0629 \u062a\u064a\u0627\u0631 \u0645\u0646 4 \u0625\u0644\u064a 20 \u0645\u0644\u064a \u0623\u0645\u0628\u064a\u0631 \u0623\u0648 \u0641\u064a \u0635\u0648\u0631\u0629 \u0625\u0634\u0627\u0631\u0629 \u0631\u0642\u0645\u064a\u0629 Digital Signal<\/span>\u00a0.<\/p>\n \u062a\u0639\u062f \u062a\u0642\u0646\u064a\u0627\u062a \u0623\u0634\u0639\u0629 \u062c\u0627\u0645\u0627 Gamma<\/span> \u062e\u064a\u0627\u0631\u064b\u0627 \u062c\u0630\u0627\u0628\u064b\u0627 \u0644\u0644\u0645\u0633\u062a\u062e\u062f\u0645\u064a\u0646 \u0646\u0638\u0631\u064b\u0627 \u0644\u0623\u0646\u0647 \u064a\u0645\u0643\u0646 \u0639\u0627\u062f\u0629\u064b \u062a\u0631\u0643\u064a\u0628\u0647\u0627 \u062e\u0627\u0631\u062c \u0627\u0644\u062e\u0632\u0627\u0646 Tank<\/span>\u00a0\u0623\u0648 \u0627\u0644\u0648\u0639\u0627\u0621 Vessel<\/span><\/a>\u00a0\u060c \u0645\u0645\u0627 \u064a\u0633\u0645\u062d \u0628\u0627\u0644\u062a\u062b\u0628\u064a\u062a \u0648\u0627\u0644\u0635\u064a\u0627\u0646\u0629 \u0628\u062f\u0648\u0646 \u0625\u062c\u0631\u0627\u0621 \u062a\u0639\u062f\u064a\u0644\u0627\u062a \u0639\u0644\u0649 \u0627\u0644\u062e\u0632\u0627\u0646 \u0623\u0648 \u0625\u064a\u0642\u0627\u0641 \u0627\u0644\u0639\u0645\u0644\u064a\u0629 \u0627\u0644\u0625\u0646\u062a\u0627\u062c\u064a\u0629 . \u0648\u064a\u0645\u0643\u0646 \u0623\u0646 \u064a\u0643\u0648\u0646 \u0630\u0644\u0643 \u0645\u064a\u0632\u0629 \u0631\u0626\u064a\u0633\u064a\u0629 \u0623\u064a\u0636\u0627 \u0645\u0639 \u0627\u0644\u0623\u0648\u0639\u064a\u0629<\/a> \u0627\u0644\u0645\u0635\u0646\u0648\u0639\u0629 \u0645\u0646 \u0633\u0628\u0627\u0626\u0643 \u0645\u0636\u063a\u0648\u0637\u0629 Pressurized Alloy<\/span>\u00a0\u0623\u0648 \u0633\u0628\u0627\u0626\u0643 \u063a\u0631\u064a\u0628\u0629 Exotic Alloy<\/span>\u00a0\u060c \u0646\u0638\u0631\u064b\u0627 \u0644\u0623\u0646 \u0625\u0636\u0627\u0641\u0629 \u0627\u0644\u0641\u062a\u062d\u0627\u062a \u0644\u062a\u0631\u0643\u064a\u0628 \u062c\u0647\u0627\u0632 \u0642\u064a\u0627\u0633 \u0644\u0644\u0645\u0646\u0633\u0648\u0628 \u0642\u062f \u0644\u0627 \u064a\u0643\u0648\u0646 \u0639\u0645\u0644\u064a\u064b\u0627.<\/p>\n *<\/p>\n Gamma sensors have capabilities that make them particularly suited for applications that other technologies find difficult:<\/p>\n * Solid or liquid contents not a factor;<\/p>\n * Immune to internal obstructions;<\/p>\n * Wide range of process temperatures;<\/p>\n * Chemical characteristics not critical;<\/p>\n * Unaffected by turbulence, flow variations; and,<\/p>\n * Reads through mist, foam and heavy vapor density.<\/p>\n *<\/p>\n \u062a\u0645\u062a\u0644\u0643 \u0627\u0644\u0623\u062c\u0647\u0632\u0629 \u0648\u0627\u0644\u062d\u0633\u0627\u0633\u0627\u062a \u0627\u0644\u0645\u0639\u062a\u0645\u062f\u0629 \u0639\u0644\u064a \u0623\u0634\u0639\u0629 \u062c\u0627\u0645\u0627 Gamma<\/span> \u0642\u062f\u0631\u0627\u062a \u062a\u062c\u0639\u0644\u0647\u0627 \u0645\u0646\u0627\u0633\u0628\u0629 \u0628\u0634\u0643\u0644 \u062e\u0627\u0635 \u0644\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u062a\u064a \u064a\u0635\u0639\u0628 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062a\u0642\u0646\u064a\u0627\u062a \u0627\u0644\u0623\u062e\u0631\u064a \u0641\u064a\u0647\u0627 \u060c \u0648\u0645\u0646 \u0647\u0630\u0647 \u0627\u0644\u0645\u0645\u064a\u0632\u0627\u062a :<\/p>\n *<\/p>\n \u0627\u0644\u0642\u064a\u0627\u0633 \u0639\u0646\u062f \u0646\u0642\u0637\u0629 \u0648\u0627\u0644\u0642\u064a\u0627\u0633 \u0627\u0644\u0645\u062a\u0648\u0627\u0635\u0644 \u0644\u0644\u0645\u0646\u0633\u0648\u0628 \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0639\u0646\u0635\u0631 \u0645\u0634\u0639<\/span><\/p>\n .<\/p>\n \u0641\u064a \u0639\u0645\u0644\u064a\u0627\u062a \u0627\u0644\u0642\u064a\u0627\u0633 \u0627\u0644\u0645\u062a\u0648\u0627\u0635\u0644\u00a0Continuous Level Measurement<\/span><\/strong> \u0646\u0633\u062a\u062e\u062f\u0645 \u062b\u0644\u0627\u062b \u0637\u0631\u0642:<\/p>\n *<\/p>\n Continuous Level Measurement<\/strong><\/span><\/p>\n There are three basic configurations with which a continuous level measurement can be performed:<\/p>\n 1. Rod Detector and Point Source.<\/p>\n 2. Point Detector and Rod Source.<\/p>\n 3. Rod Detector and Rod Source.<\/p>\n .<\/p>\n .<\/p>\n \u0627\u0644\u0646\u0648\u0639 \u0627\u0644\u062b\u0627\u0646\u064a \u064a\u062a\u0645 \u0648\u0636\u0639 \u0627\u0644\u0645\u0635\u062f\u0631 \u0627\u0644\u0625\u0634\u0639\u0627\u0639\u064a \u0627\u0644\u0637\u0648\u0644\u064a \u0641\u064a \u0645\u0631\u0643\u0632 \u0627\u0644\u0648\u0639\u0627\u0621 \u060c \u0648\u064a\u0643\u0648\u0646 \u0630\u0644\u0643 \u0645\u0639 \u0627\u0644\u0623\u0648\u0639\u064a\u0629<\/a> \u0630\u0627\u062a \u0627\u0644\u062c\u062f\u0627\u0631 \u0643\u0628\u064a\u0631 \u0627\u0644\u0633\u0645\u0643 Thick-Walled<\/span> Vessels<\/span> \u060c \u0648\u0647\u0646\u0627 \u062a\u0639\u0628\u0631 \u0627\u0644\u0623\u0634\u0639\u0629 \u062c\u062f\u0627\u0631 \u0648\u0627\u062d\u062f \u0641\u0642\u0637 .<\/p>\n .<\/p>\n .<\/p>\n .<\/p>\n .<\/p>\n *<\/p>\n \u0627\u0644\u0639\u0648\u0627\u0645\u0644 \u0627\u0644\u0645\u0624\u062b\u0631\u0629 \u0639\u0644\u064a \u0627\u0644\u0625\u062e\u062a\u064a\u0627\u0631 \u0641\u064a\u0645\u0627 \u0628\u064a\u0646\u0647\u0627 :<\/strong><\/p>\n .<\/p>\n The selection of an option depends on:<\/strong><\/p>\n \u25a0 the measuring geometry<\/p>\n \u25a0 the measuring task<\/p>\n \u25a0 ambient factors<\/p>\n \u25a0 considerations of space and money<\/p>\n *<\/p>\n \u0645\u0641\u062a\u0627\u062d \u0627\u0644\u0645\u0646\u0633\u0648\u0628 Level Switch<\/strong> <\/span><\/p>\n \u064a\u0645\u0643\u0646 \u0627\u0633\u062a\u062e\u062f\u0627\u0645\u0647 \u0643\u0645\u0641\u062a\u0627\u062d \u0644\u0644\u0645\u0646\u0633\u0648\u0628 Level Switch<\/span> \u0628\u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0645\u0635\u062f\u0631 \u0646\u0642\u0637\u064a Point Source<\/span> \u0648\u0643\u0627\u0634\u0641 \u0646\u0642\u0637\u064a\u00a0Point<\/span> Detector<\/span> \u0648\u0630\u0644\u0643 \u0644\u0645\u0631\u0627\u0642\u0628\u0629 \u0627\u0644\u0645\u0646\u0633\u0648\u0628 \u0639\u0646\u062f \u0646\u0642\u0637\u0629 \u0645\u0639\u064a\u0646\u0629 \u0628\u063a\u0636 \u0627\u0644\u0646\u0638\u0631 \u0639\u0646 \u0645\u062d\u062a\u0648\u064a \u0627\u0644\u0648\u0639\u0627\u0621<\/a> \u0645\u0646 \u062d\u0628\u064a\u0628\u0627\u062a \u0635\u0644\u0628\u0629 Bulk<\/span> \u0623\u0648 \u0633\u0627\u0626\u0644\u0629 Liquid<\/span> .<\/p>\n *<\/p>\n \u0627\u0644\u0645\u0642\u064a\u0627\u0633 \u0627\u0644\u0625\u0634\u0639\u0627\u0639\u064a \u0644\u0644\u0645\u0646\u0633\u0648\u0628 –\u00a0\u0627\u0644\u0642\u064a\u0627\u0633 \u0627\u0644\u0625\u0634\u0639\u0627\u0639\u064a \u0644\u0644\u0645\u0646\u0633\u0648\u0628<\/p>\n .<\/p>\n Nuclear Level Measurement –\u00a0Radiation Level Measurement –\u00a0Nuclear Level Gauge –\u00a0Radiometric Measurement – Continuous Level Measurement – Non-Contact Level Measurement<\/p>\n *<\/p>\n \u0627\u0644\u0645\u0635\u062f\u0631 \u0631\u0642\u0645 1<\/a> .<\/p>\n *<\/p>\n \u0627\u0636\u063a\u0637 \u0647\u0646\u0627 \u0644\u062a\u062a\u0627\u0628\u0639 \u0635\u0641\u062d\u062a\u0646\u0627 \u0639\u0644\u064a \u0627\u0644\u0641\u064a\u0633 \u0628\u0648\u0643 ***************************************************************<\/strong><\/span><\/p>\n .<\/p>\n Nuclear (gamma) level measurement technology has been applied effectively for measuring liquids and solids for more than 30 years. A typical system consists of a gamma ray source, a detector and microprocessor. The gamma source is normally mounted outside the vessel, and emits energy through the walls and contents, collimated towards the detector, which is […]<\/p>\n","protected":false},"author":2,"featured_media":2373,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[5],"tags":[24,174,118],"_links":{"self":[{"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/posts\/2366"}],"collection":[{"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/comments?post=2366"}],"version-history":[{"count":10,"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/posts\/2366\/revisions"}],"predecessor-version":[{"id":2641,"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/posts\/2366\/revisions\/2641"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/media\/2373"}],"wp:attachment":[{"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/media?parent=2366"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/categories?post=2366"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.inst-sim.com\/1\/wp-json\/wp\/v2\/tags?post=2366"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/nuclear-Level-measurement.jpg\"){kind=spacer}
<\/p>\n![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-measurement-Ani-2.gif\")
<\/p>\n\n
\u0637\u0631\u0642 \u0627\u0633\u062a\u062e\u062f\u0627\u0645 \u0627\u0644\u062c\u0647\u0627\u0632 General Arrangements<\/span><\/h2>\n
![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-Measurement-1.png\")
<\/p>\n\n
\u0645\u0635\u062f\u0631 \u0637\u0648\u0644\u064a \u0645\u0639 \u0643\u0627\u0634\u0641 \u0646\u0642\u0637\u064a Rod Source With Point Detector<\/span><\/h3>\n
![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-Measurement-2.png\")
<\/p>\n![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-Measurement-5.png\")
<\/p>\n\u0645\u0635\u062f\u0631 \u0646\u0642\u0637\u064a \u0645\u0639 \u0643\u0627\u0634\u0641 \u0637\u0648\u0644\u064a Point Source With Rod Detector<\/span><\/h3>\n
![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-Measurement-3.png\")
<\/p>\n![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-Measurement-6.png\")
<\/p>\n\u0645\u0635\u062f\u0631 \u0637\u0648\u0644\u064a \u0645\u0639 \u0643\u0627\u0634\u0641 \u0637\u0648\u0644\u064a Rod Source With Rod Detector<\/span><\/h3>\n
![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-Measurement-4.png\")
<\/p>\n![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-Measurement-7.png\")
<\/p>\n\n
![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/07\/Radiometric-Measurement-8.png\")
<\/p>\n\u0645\u0635\u0637\u0644\u062d\u0627\u062a Terminology<\/span><\/h2>\n
![\"\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2018\/04\/Inst-Sim-Face-ani-small2.gif\")
<\/a><\/p>\n![\"handwave-yellow\"](\"http:\/\/www.inst-sim.com\/1\/wp-content\/uploads\/2016\/11\/handwave-Yellow.gif\")
<\/p>\n\u0645\u0648\u0627\u0636\u064a\u0639 \u0630\u0627\u062a \u0635\u0644\u0629<\/strong><\/span><\/h3>\n
*<\/h3>\n
\n
<\/p>\n","protected":false},"excerpt":{"rendered":"