Which is a vendor specific class implementation. Perhaps there's some kind of usb hardware problem going on here. Sorry Darkwing, I didn't spot that yellow connector. This tutorial shows you how to un-brick the FTRL. USB port configuration and the information contained in this manual. Set the serial port configuration and then read from and write to the device. How to install ftdi Drivers for Arduino.
But any other cheap chip other than FTDI will works. I have no idea what that's for, the FT cannot be programmed, it can be made to bit-bash several of its IO pins and maybe they are connected to that 2x3 header. This is a variety of options. This is about a development module which uses the COM port. Thermal Power Sensors. Slit Beam Profiler.
Fiber Attenuators. Integrating Spheres. Fiber Patch Cables. Laser Safety Curtains. SM1 Lens Tube Systems. Please Wait. For continuous wave CW sources, this value is equivalent to the peak power density, while for pulsed laser sources this value is calculated from the time-averaged power and beam profile. The appropriate range is chosen internally by the power meter to achieve the best accuracy. Automatic ranging can be turned off. Under conditions of intermittent use, with twenty-minute maximum exposure time for the SC and two minute maximum exposure time for the SC.
In all cases, the acceleration circuit was switched off. Resolution performance will be similar with our other power meter consoles. Calibration can be performed at SM1 1. Delta Mode, enabled above, shows the fluctuation range during the measurement period.
Click to Enlarge Power Statistics Mode: Calculate numerical statistics for a pre-determined measurement period. The panel displays the analyzed values in a bar graph and the results as numerical values. Click to Enlarge Data Logging: Enable long-term measurement and simultaneous recording from up to eight power meters.
Save data as. Click to Enlarge Figure 1: Parameters used to describe pulsed laser emission are indicated in the plot above and described in the table below. Parameter Symbol Units Description Pulse Energy E Joules [J] A measure of one pulse's total emission, which is the only light emitted by the laser over the entire period.
The pulse energy equals the shaded area, which is equivalent to the area covered by diagonal hash marks. Average Power P avg Watts [W] The height on the optical power axis, if the energy emitted by the pulse were uniformly spread over the entire period. Pulse Width Seconds [s] A measure of the time between the beginning and end of the pulse, typically based on the full width half maximum FWHM of the pulse shape.
Also called pulse duration. Repetition Rate f rep Hertz [Hz] The frequency with which pulses are emitted. Equal to the reciprocal of the period. Example Calculation: Is it safe to use a detector with a specified maximum peak optical input power of 75 mW to measure the following pulsed laser emission?
Please Give Us Your Feedback. First Name. Last Name Submit Anonymously:. Contact Me:. Prefer to Request a Quote? Request Quote. Enter Comments Below:. Submit Feedback:. Click for a new code. The power meter is a USB type and the power meter interface is a serial type. Is it possible to use a USB-serial port gender to connect two products? Reply please.
Thank you very much for your feedback! The PM can be directly connected to a computer without the need for an additional interface.
It has all the measurement electronics already integrated in the USB stick. The PM is not necessary in this case. The two devices cannot be connected in any way either. I will contact you directly to provide further assistance. Dear John, thank you for your feedback. The 1. For lasers with high peak powers we recommend sensors like SC or SC.
Unfortunately this alters the power measurement to higher values comparing with and without USB extension cable. Does the power measurement depend on the USB voltage? Many thanks in advance! Dear Carsten, thank you very much for your inquiry. The device is USB powered and if the supply voltage reaches too a low value, the internal voltages would collapse, which could lead to the observed effect.
Depending on the cable used, too much supply voltage can drop across the cable over the distance. I have contacted you directly to discuss further details. Thank you very much for your inquiry. Here it depends on what kind of reproducibility you are referring to. For the repeatability of the measurement results and thus the precision, the reproducibility is better than 0. Dear Connor Lee, thank you for your feedback.
Dear all, as many other users here we are interested in linux drives for PM16 and PM Thanks a lot. Dear Stefano, thank you for your inquiry.
I have contacted you directly to provide send necessary drivers and provide further assistance. Hello, I read in other comments that you can provide drivers for Linux to operate your USB power meters. We just got a PM and we would like to use it under Linux. Could you send the appropriate drivers and instructions please?
Dear Katharina, thank you for your inquiry. This allows you to use a USB port in your computer to a RS type devices such as point-of-sale terminals, serial modems as well as industrial equipment.
A number of our Plugable serial port. Time while you to overcome this product! We proudly boast about Rs, and support serial port. It is a USB to connect devices. Everything was up and running yesterday using the built in graphics. Buy our selection of Vm Socket Motherboard now! The version of Endurance Software was V6. There is no hardware issue with it, it worked perfectly fine on Windows 7. Should you have any problems during the installation of the firmware upgrade please, call and select option 1 for assistance.
We use cookies to ensure that we give you the best experience on our website. On some Samsung tablets, you find the Wi-Fi item on the Connections tab. I have to right click in my system tray icon and click eject to open it? The library is usually used in blocking mode, i. It is also possible to define a maximum timeout to wait for the hardware to be initialized. This won't send the program into a spinlock when the scale is disconnected and will probably also account for hardware failures.
It provides a tare function, which "resets" the scale to 0. Many other implementations calculate the tare weight when the ADC is initialized only. I needed a way to be able to set the tare weight at any time. Use case : Place an empty container on the scale, call tare to reset the readings to 0, fill the container and get the weight of the content. According to the datasheet,. Use case : Battery-powered scales. Channel B has a fixed gain of The same function is used to select the channel A or channel B, by passing or 64 for channel A, or 32 for channel B as the parameter.
This will spawn a Python virtualenv in the current directory, install platformio into it and then execute platformio run , effectively building for all environments defined in platformio.
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