Re: E-Field Probe Question
That's a bit of a puzzler Robert. As I recall, Tektronix used to state ristetime in terms of that observed when passing through amplifiers with gaussian rolloff and it was Rt(ns)= Bandwidth(Mhz) / 350 Ralph Cameron - Original Message - From: Robert Macy m...@california.com To: Dan Kwok dk...@intetron.com; Ralph Cameron ral...@igs.net; EMC-PSTC Group emc-p...@majordomo.ieee.org Sent: Monday, January 24, 2000 8:54 PM Subject: Re: E-Field Probe Question At first that looked like what is asked for is the ability to pass signals with a bandwidth of 10Hz. Given what they're looking for, stating frequency would make it easier to understand. But isn't the risetime 1/2pi F?? Or, are they just saying that the readings pop out at least 10 times per second, with the ability to respond in one reading? - Robert - Ralph Cameron wrote: Tr usually ment risetime when referred to pulsed signals. In this case I think it refers to response time less than 10Hz. In other words you'll get a reading in less than the period of ten hertz at the frequency of measurement. Hi Ralph, Would that be more appropriately stated as 0.10 sec? Just curious. Regards, Dan Kwok -- = Daniel Kwok Vancouver, BC, Canada Intetron Consulting, Inc. Telephone 604.432.9874 Email dk...@intetron.com FREE EMC Tips @ our website http://www.intetron.com; = - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: E-Field Probe Question
At first that looked like what is asked for is the ability to pass signals with a bandwidth of 10Hz. Given what they're looking for, stating frequency would make it easier to understand. But isn't the risetime 1/2pi F?? Or, are they just saying that the readings pop out at least 10 times per second, with the ability to respond in one reading? - Robert - Ralph Cameron wrote: Tr usually ment risetime when referred to pulsed signals. In this case I think it refers to response time less than 10Hz. In other words you'll get a reading in less than the period of ten hertz at the frequency of measurement. Hi Ralph, Would that be more appropriately stated as 0.10 sec? Just curious. Regards, Dan Kwok -- = Daniel Kwok Vancouver, BC, Canada Intetron Consulting, Inc. Telephone 604.432.9874 Email dk...@intetron.com FREE EMC Tips @ our website http://www.intetron.com; = - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: E-Field Probe Question
Yes, Dan, you're correct. Ralph Cameron - Original Message - From: Dan Kwok dk...@intetron.com To: Ralph Cameron ral...@igs.net; EMC-PSTC Group emc-p...@majordomo.ieee.org Sent: Monday, January 24, 2000 6:50 PM Subject: Re: E-Field Probe Question Ralph Cameron wrote: Tr usually ment risetime when referred to pulsed signals. In this case I think it refers to response time less than 10Hz. In other words you'll get a reading in less than the period of ten hertz at the frequency of measurement. Hi Ralph, Would that be more appropriately stated as 0.10 sec? Just curious. Regards, Dan Kwok -- = Daniel Kwok Vancouver, BC, Canada Intetron Consulting, Inc. Telephone 604.432.9874 Email dk...@intetron.com FREE EMC Tips @ our website http://www.intetron.com; = - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
Re: E-Field Probe Question
Tr usually ment risetime when referred to pulsed signals. In this case I think it refers to response time less than 10Hz. In other words you'll get a reading in less than the period of ten hertz at the frequency of measurement. Ralph Cameron EMC Consultant and Suppression of Consuemr Electronic Equipment (After Sale) - Original Message - From: Martin Rowe (TMW) m.r...@ieee.org To: emc-p...@ieee.org Sent: Monday, January 24, 2000 12:17 PM Subject: E-Field Probe Question I need clarification on a spec for an e-field probe. The spec is Tr less than 10 Hz. What is Tr? The probe is specified in SAE J1113/27 Electromagnetic Compatibility Measurements Procedure for Vehicle Components: Part 27:Immunity to Radiated Electromagnetic Fields-Reverberation Method. Thanks, /\ | Martin Rowe | / \ | Senior Technical Editor | /\ /\ | Test Measurement World | / \/ \/\ | voice 617-558-4426 |/\ /\ / \/ | fax 617-928-4426 | \/ \/ | e-mail m.r...@ieee.org | \ / | http://www.tmworld.com |\/ - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators). - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
E-Field Probe Question
I need clarification on a spec for an e-field probe. The spec is Tr less than 10 Hz. What is Tr? The probe is specified in SAE J1113/27 Electromagnetic Compatibility Measurements Procedure for Vehicle Components: Part 27:Immunity to Radiated Electromagnetic Fields-Reverberation Method. Thanks, /\ | Martin Rowe | / \ | Senior Technical Editor | /\ /\ | Test Measurement World | / \/ \/\ | voice 617-558-4426 |/\ /\ / \/ | fax 617-928-4426 | \/ \/ | e-mail m.r...@ieee.org | \ / | http://www.tmworld.com |\/ - This message is coming from the emc-pstc discussion list. To cancel your subscription, send mail to majord...@ieee.org with the single line: unsubscribe emc-pstc (without the quotes). For help, send mail to ed.pr...@cubic.com, jim_bac...@monarch.com, ri...@sdd.hp.com, or roger.volgst...@compaq.com (the list administrators).
