search for rpm sensor for Analog Devices 5B45

T

Thread Starter

TommyT

I'm a retired calibration & controls guy.
I have a client with a testing machine that uses a 60 tooth wheel for rpm. The sensor (magnetic? hall effect? prox?) was lost. Of course, no records. The sensor's output was sent to an f/v converter - Analog Decives, Inc. 5B45-05.

Spec. pdf is at:
http://www.analog.com/static/imported-files/data_sheets/5B45_46.pdf

I would like to find a 3/8"x1" hall effect or magnetic sensor that would work with the existing 5B45 f/v. Alternatively, I could replace the f/v converter with another model that accepts a standard hall effect sensor.

I need to have 0-5vdc = 0-10,000rpm output from the replacement.

I can even go to a photo sensor, if you think it best. There's a 6-black/6-white disk I can use for that.

Thanks for your help.
 
A smarter solution should be the following:

1) Any RPM sensors, for example, from the List of Rotation Speed Sensors Manufacturers at Sensors Web Portal (http://www.sensorsportal.com):
http://www.sensorsportal.com/HTML/SENSORS/RotationSens_Manuf.htm

2) The UFDC-1 integrated circuit with a direct RPM measuring mode:
http://www.sensorsportal.com/HTML/E-SHOP/PRODUCTS_4/UFDC_1.htm

You will not lost an accuracy due to the f/v converter and get a flexible and universal solution for a wide RPM range, 1-255 possible tooth number and a constant quantization error.

Good luck !
 
I haven't looked up the actual specs, but you should look through the Omron and Red Lion catalogues for this sort of thing. The biggest problem though might be the 10,000 kHz requirement.
 
> The biggest problem though might be the 10,000 kHz requirement.

No 10, 000 kHz, but 10,000 RPM. It is no any problem with the UFDC-1. It is working in very wide RPM range.
 
You are correct, I intended to say 10 000 Hz (or 10 kHz), not 10 000 kHz. That's from 10 000 rpm and 60 gear teeth. A 60 tooth wheel is often used because it makes converting Hz to rpm simpler.

All the same, this sort of application is common, but 10 kHz sensors less so. Quite often the speed is measured on the output side of a conveyor gearbox, where the speed (frequency) is much lower.
 
Yes, it was. Mainly, due to a classical methods for frequency (rpm) measurements. The UFDC-1 is based on a novel, advanced method for frequency (rpm) measurements. So, now it is possible to measure a high rotation speed with programmable, constant relative error and non-redundant conversion time.
 
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