Rotary Torque Sensor

Projects General Guidance
1

Hello everyone;

I want to ask about something I wonder. I plan to buy a rotary torque sensor. I am planning to buy the product I shared the link of. But I need your support on something.(TRD305: Rotary Torque Sensor (With encoder) - +/-6 ...+/-1000Nm ) Can I control to this sensor with Arduino. Sensor output is 2mV/V. So can this sensor thinkable as Load-Cell. I had worked with the load cell before and I was able to read data from the load cell using the HX711 ic. Can I use this sensor with the module I shared the link for? Do you have any information on the subject? (SparkFun Load Cell Amplifier - HX711 - SEN-13879 - SparkFun Electronics)

2

2mV/V

makes no sense to me. in fact NONE of the specs make much sense

Capacities : 6, 12, 25, 63, 160, 500, 1000 Nm.
Rated output : 2 mV/V.
Non Linearity : 0.2%.
Material : Stainless steel.
Encoder output: TTL.
Safe overload: 150%.
Excitation: 5 to 11 VDC.
Encoder excitation: 5 VDC.
Rotational Speed: 3000 RPM.

I'd suggest you need to contact the manufacturer and get application information.

3

The information in the datasheet is quite limited as well.

From what I read it does appear to be some kind of load sensor, with four connections: excitation and signal. That's very similar of a typical load cell, so the HX711 may work with this.

To be sure, you will have to contact the seller/manufacturer for details. You may also be able to unearth a datasheet that has more details in it, ideally even reference circuits.

If it really is basically a load cell, you should be able to read it with an Arduino. Chances are you can read it with an Arduino, albeit possibly with some other hardware as interface, based on the simple fact that almost all electricity based sensors can be read with an Arduino.

4

wvmarle:
The information in the datasheet is quite limited as well.

From what I read it does appear to be some kind of load sensor, with four connections: excitation and signal. That's very similar of a typical load cell, so the HX711 may work with this.

To be sure, you will have to contact the seller/manufacturer for details. You may also be able to unearth a datasheet that has more details in it, ideally even reference circuits.

If it really is basically a load cell, you should be able to read it with an Arduino. Chances are you can read it with an Arduino, albeit possibly with some other hardware as interface, based on the simple fact that almost all electricity based sensors can be read with an Arduino.

Thank you wvmarle. I have one more question. I examined the cable codes in the datasheet. I don't need to use an encoder because I will not do any angle control. Therefore, is it possible to control the sensor with only 4 wires required for the torque connector? Finally, thank you for your advice. I wrote a mail to the seller regarding the issue.

5

Based on what the datasheet shows I think that's a yes, but that kind of details you have to confirm with the manufacturer. It all depends on how the thing is actually constructed. As the saying goes, the devil is in the details, and that is particularly true when it comes to (electrical) engineering.

6

Guess y’all’s Google is broken.

mV/V is a unit for strain gauges at least. It came up in the last thread in these fora concerning reading a rotary torque measurement device.

You will be good with the HX711. One board color is said to be a bit better, forget which blue or green.

Mind the wires from the device, they may not be colors in any standard interpretation like red is positive…

HTH

a7

7

This topic was automatically closed 120 days after the last reply. New replies are no longer allowed.