However, a single person can collect the data if that person uses a voice activated tape recorder to record the readings.ĭetailed scheduling and traffic control at test sites must be coordinated by the RSC. Data collection using the Dipstick ® is a two person operation, with one person operating the Dipstick ® and the other person recording the data. 3.2 OPERATIONAL GUIDELINES 3.2.1 General Proceduresĭipstick ® measurements are to be taken by personnel who have been trained in using the device and are familiar with the procedures described in this manual. Decisions with respect to the need for Dipstick ® measurements at these test sections should be made on a case-by-case basis by responsible RSC personnel. Profile measurements on GPS and SPS sites that cannot be obtained using the LTPP profiler should be obtained using the Dipstick ®.
When the automated Dipstick ® is used for data collection, it should be used in manual mode, with data recorded manually. The spacing between the two feet of the Dipstick ® is approximately 304.8 mm for both models. Both the manual and the automated Dipsticks ® display data in millimeters.
Swivel footpads having an approximate diameter of 32 mm should be used for all measurements.Įach RSC is in possession of at least one manual Dipstick ® (Model 1500) and two automated Dipsticks ® (Model 2000 and Model 2200). After the sensor achieves equilibrium, the difference in elevation between the two points is displayed. The sensor becomes unbalanced as the Dipstick ® is pivoted from one leg to the other as it is moved down the pavement, causing the display to become blank. The Dipstick ® sensor is mounted in such a way that its axis and line passing through the footpad contact points are co-planar. The body of the Dipstick ® houses an inclinometer (pendulum), LCD panels, and a battery for power supply. However, the profile obtained from Dipstick ® measurements may have a vertical shift from the true profile because of systematic cumulative errors in the Dipstick ® readings. The Dipstick ®, which is manufactured by Face Company, is a manually operated device for collection of precision profile measurements, and can collect data at rates greater than traditional rod and level survey procedures. PROFILE MEASUREMENTS USING THE FACE DIPSTICK ® 3.1 INTRODUCTION Only allowed for peninsular orders in Spain and Portugal.LTPP Manual for Profile Measurements and Processing CHAPTER 3. This service has a small surcharge from the transport company of 3% of the value of your order with a minimum of 3.95€. With this method you will pay the order in cash to the dealer at the time of delivery, so you do not pay until you receive it. Once the order is placed, you will receive in the email the necessary data to make the transfer. The order may be delayed a bit since it is launched once payment has been received and verified in our bank account at Banco Sabadell. Make your payment through bank transfer or deposit.
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