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Here are questions recently asked by our customers:
| Q- I'm trying to identify which specific type of reflective tape from 3M should be used with the AccuRange 4000-RET laser rangefinder |
| A- Acuity recommends two different retroreflective targets for the AR4000-RET. We suggest 3M High Gain Reflective Sheeting 7610 or 7590. More informaiton can be learned from the Rangefinder technical data page. |
| Q- I have an application that requires distance measurement in the range of 45 to 90 feet. The accuracy is not critical beyond a few inches. The target is dark metal and is moving. There are multiple targets at different ranges. The output must be into a PC and interface with my program or into a data logger. The environment is severe and the range finder must be waterproof. There are personel present so eye damage is a concern. |
| A-
We have rangefinders that will measure to 90 feet. We have the AR1000 laser distance sensor that has a Class 2 visible laser and another one,the AR3000, that is considerably more expensive, that is completely eye safe (Class I, infrared).
Dark targets are okay, brighter colors are always better. How fast are they moving and what exactly do you mean by "multiple targets are different ranges?"
All of our sensors are RS232 and analog output capable. |
| Q- I am looking for something with the accuracy of +/-.001 inches for checking overall length for some stock bars approximately 145" long. Would you have a device that could accomplish this quickly. You can send info to email address above. Thank You. |
| A- None of our laser rangefinders that can measure 145 inches will maintain an accuracy of 0.001". Thank you for your interrest in Acuity products, but we can not satisfy your requirements in this case. |
Q - Hello,Can you tell me if I can contact a sales agent for New Zealand (or Australia)? |
| A- We do have an agent for Oceania that handles sensor requests in AU and NZ. Please contact Sam Bhasin at Bestech. |
| Q- Looking for laser distance measurement device, with the precision of 10 micron or better, with 100HZ or higher sampling rate, digital output, max distance, around 1m.Please kindly advise the model recommended as well as the prices and availability. |
| A- By precision, we believe that this customer is referring to "resolution". Resolution is the smallest increment of change that can be detected by the laser sensor. It is often a function of the number of pixels on the detector array. Our AR700-8 has a span of 203 mm, too short for this customer's needs. We can offer the AR700-24 which will have a resolution of 31 microns instead. |
Q- We have bought three AR600-8 displacement meters to use in a road profiling project .Our goal is to have all three sending their measurements at the same time, the questions we have are the following: What is the best rate we can get using non-continuous sampling, using the “take single sample” character “E”? We have noticed that there is an approx. 1.39 ms delay from the “request” (char “E”) and the sample return; that reduces a lot the 1,000 samples of the continuous mode.- If we send the character “E” to all the three AR600-8 at the same time. Are they going to answer at the same time, or they may differ from each other?- Is there any other way we can “synchronize” them? Thank you in advance for your help. |
A- Thanks for your e-mail to our website. I originally worked with you since you first contacted our company and made the decision to purchase. I do not know of too many Road Profiling organizations who do “polled” sampling instead of using the faster automatic sampling. However, I can answer your question. Using the “E” command, the fastest sample rate is 625 Hz. To achieve this maximum rate, you must consider the following: 1) This is open loop. You issue the command and do not wait for the data response 2) Sensor is set to “RATE” priority. 3) Sensor sampling speed is set to 1250 Hz (S8 command) 4) You operate at the fastest baud rate 5) You operate in binary mode. The sensors should respond at the same time after issuing the command simultaneously. |
| Q- We are looking to install an automated measuring system for determining block height of polyurethane foam cast on a conveyor. Typical block heights range from 1.5" to 5.5". We are currently using hand-held calipers to measure random points on the block and then inputing the results into an SPC data collection program. |
| A- Measuring the thickness of polyurethane foam that rests on a conveyor is the simplest example of online thickness measurement using a laser sensor since you can use a single sensor that references the conveyor as the zero point. I recommend the AR700-6 laser distance gage. It's CMOS detector will measure to any color foam. Data can be transmitted to a serial port and handed off to your SPC data acquistion software. |
| Q- I just purchased a new AR1000 laser distance sensor and I forgot that it did not include any connectors. How do I quickly connect this computer and begin taking measurements? |
| A- To begin using the AR1000, you need to get power to the sensor and attach the serial communications cable leads to your computer's serial port. See our new Quick Start Guide for concise instructions. |
| Q- When I apply appropriate power to the AR1000 laser distance sensor, the laser light does not turn on. Is this sensor broken or do I have to do something else? |
| A- Please download the AR1000 Quick Start Guide. The default configuration has the devices laser turned OFF. To turn on the laser, type DT <enter> to enter a sampling mode. |
| Q- I am using an AR700-16 laser distance gage and I am seeing periodic noise in my data. I am running the sensor at 230 Kbaud, 9400 Hz sampling speed and binary output. What is causing these "steps" in my data? |
| A- Verify that analog output is disabled. Follow the instructions in section 5.2.5 of the AR700 User's Manual regarding processing the 2 byte binary values correctly. |
Frequently Asked Questions for Acuity sensors
