Rotary Laser Leveller

[slaich2000]

Hello, I have been working to construct rotary laser leveler for a while using high horizontal wavelength around 600nm with motor (1100 rpm) but the receiver is not giving any signal. I am using Leica receiver and self constructed transmitter. Please could any suggest circuit diagram for this operation?

Application: The transmitter is set to the zero level and the receiver detects signal. If the signal is at positive x-axis till then the hydraulic machine works to make the height of receiver up to the level of transmitter.

Please help! Thanks

 

[D.A.(Tony)Stewart]

lack of details shows a misunderstanding of how Laser transmitter is expected to be modulated and wavelength filtered for receiver. WHere are your specs?

 

[FvM]

Rotating laser are usually operated without modulation, because you have only microseconds beam transition time at larger distance.

I don't know however any specifications of the "Leica receiver", I didn't even hear of it, although I have been involved in laser measurement system design.

It's quite easy to calculate the light intensity and waveform at a certain distance from the rotating device, provided you know the optical power and beam width of the laser. So you can predict the received signal.

 

[slaich2000]

@SunnySkyGuy Here are the specifications:



I am using this specification as a reference to build a project, but not able to achieve. Can you help in developing the circuit for transmitter and receiver?

 

[FvM]

I don't believe that building a laser leveller is particularly a circuit design problem. It's a problem of laser and sensor selection, optics, rotation mechanic. There are different sensor concepts, e.g. using an array of discrete photo diodes, linear sensor arrays, PSD.