Patent US2. 01. 20. Low power, automated weight logger. ORIGIN OF INVENTION. 31.9% of the Bell system was. An automated system may have a. General aviation pilots can use Aircraft Weight and Balance to check their aircraft before takeoff. 1.0.0.2: Category; Category: Home Software: Subcategory: Hobby Software: Operating Systems; Operating Systems: Windows XP. The Balance System SD also serves as a valuable training device to enhance kinesthetic abilities that may provide some degree of compensation for. 9.75' w x 7.25 ' h (24.8 x 18.4 cm). Automated Powder Dosing in the Life Science Laboratory. Automated Powder Dosing in the. The Quantos automated dosing balance has a minimum. The timing of major pollination periods may be changing due to climate change and land use change, as plant blooming dates respond to temperature and climate and floral composition. Synchronization between the plants and pollinators must be maintained for healthy ecosystem function. This coupling between the plants and pollinators is extremely difficult to investigate due to the large numbers of species involved. The interaction may occur at varying times throughout the year, depending on location and the floral composition. Compared to recording blooming dates from individual plants or small plots, the behavior of the bees integrates the information over a considerable area (for example, 5 km diameter). Balance Accuracy FlexiWeigh The balance is an. Automated system identifies potential. Figure 1 Balance Weight Pulley System. 100 Impulse Way, Mount Olive. Figure 2 Labeled Balance Weight Assembly. Another issue is copper creep. Automated Weight and Balance System (AWBS) Training. This one-day class will present all the new features of Version 10 of the US Air Force’s Automated Weight and Balance Software in a. Automated Dye Measurement /L W. Automated stock solution makeup is a. The console and instrumentation are certified to NEC Class 1 / Division 2. The ground breaking e-balance system represents a. Bees also sample many species of plants. The area resolved by the hive sampling may be of the same spatial extent as derived satellite data (5 km binned resolution) and of coupled climate- ecosystem models. Bees may be kept in standard hives by about 1. There is a need for a low cost way to monitor the weight of hundreds of bee hives daily, at their remote locations. The weights of bee hives near residences are commonly monitored with manual beam balance platform scales. However, remote bee hive sites may only be visited at weekly, monthly, or even longer intervals. Low cost is important to encourage volunteer beekeepers to perform the monitoring at many sites across the country. If a low cost, low power, battery- powered logging scale for beehives were available, ecologists may be able to bring the vast sampling benefits of the satellite data to bear on this important research area. SUMMARY. The adapter circuit may include a second battery power supply, a switchable voltage regulator, and an amplifier. The data logger may switch the voltage regulator in the adapter circuit on and off. The amplifier may amplify a signal from the load cell and send the amplified signal to the data logger. The voltage regulator may regulate power from the power supply to the load cell. The mechanical beam platform scale may have a weighing platform, a balance beam, and a tension rod connected between the weighing platform and the balance beam. The tension rod may include the electronic load cell. The electronic load cell may be disposed between the base and the loading platform. The loading platform may receive a weight to be measured. A is a perspective view of the base an alternate embodiment of a weighing scale. B is a perspective view of the loading platform of the alternate embodiment of a weighing scale. C is a side view of FIG. D is a sectional view of the alternate embodiment of a weighing scale taken along the location of line 4. D- 4. D in FIG. 5 is a diagram of one embodiment of an adapter circuit for an automated weight logger. DETAILED DESCRIPTION. Beehive weight changes may indicate nectar availability and nectar harvesting in the environment. NASA has developed a network (http: //honeybeenet. The hive weight data may be compared with satellite- derived vegetation phenology data. The automated weight logger 1. The weighing scale 1. The data logger 1. The adapter circuit 2. The adapter circuit 2. The amplifier 2. 8 may amplify the signal from the load cell 1. The voltage regulator 2. Load cell 1. 4 may be a temperature compensated load cell. The weight logger 1. The bee hive 9. 0 may rest on the weighing scale 1. The conventional scale 3. The conventional scale 3. The tension rod 3. A. An item to be weighed is placed on platform 3. Platform 3. 2 may have a lever ratio of about 1. The lever system in the platform 3. Tension rod 3. 4 may transmit this force to beam balance 3. The modified scale 4. The tension rod 4. The length B of tension rod 4. A of tension rod 3. Load cell 5. 0 may provide an electric signal that is proportional to the weight of the item (not shown) on the platform 3. The item that is weighed may be a bee hive that remains in place on the platform 3. The load cell 5. 0 of FIG. FIG. The mechanical advantage of the lever system in the platform 3. Thus, a load cell 5. An example of a suitable load cell 5. Model FT2. 4- 3- 1 available from Measurement Specialties, Inc. The precision of the scale 4. A- D show an alternate embodiment of a weighing scale. A is a perspective view of the base 6. Base 6. 0 may include a pair of spaced- apart longitudinal supports 6. Supports 6. 4 and cross- member 6. B is a perspective view of the loading platform 6. C is a side view of FIG. Loading platform 6. Supports 6. 8 may have, for example, an L- shaped cross- section. Cross- member 6. 8 may have, for example, a channel- shaped cross- section. For supporting a standard size bee hive, the supports 6. C of about 2. 0 inches long and may be spaced apart a distance D of about 1. D is a sectional view of the alternate embodiment of a weighing scale taken through the cross- members 6. D- 4. D of FIG. 4. B shows only the loading platform 6. FIG. 4. D is a section through both the base 6. Spacers 7. 6, 7. 8 may be placed above and below load cell 7. Load cell 7. 2 may be fixed to spacers 7. Base 6. 0 and loading platform 6. The load cell 7. 2 of FIG. D may correspond to the load cell 1. FIG. Calibration of load cell 7. A suitable data logger 1. Model U1. 2- 0. 13 available from ONSET Computer. Data logger 1. 6 may include an external temperature probe and may accept 2 external inputs. The adapter circuit 2. Connection block 8. The battery power supply 2. FIG. 1), for example, a 9 volt battery, may be connected to voltage regulator 2. Voltage regulator 2. Voltage regulator 2. Power from the power supply 2. FIG. 1) may be supplied by the voltage regulator 2. A voltage monitoring signal may be supplied to data logger 1. The amplifier 2. 8 may amplify the load cell signal to about 5 volts, and supply the amplified signal to the data logger 1. Because the sensitivity of load cells may vary, a jumper circuit including an additional pair of connection blocks 8. For example, if a load cell has a sensitivity of 2 m. V/V, then a jumper cable may be placed between the two connections in block 8. If the load cell sensitivity is 3 m. V/V, then a jumper cable may be placed between the two connections in block 8. The data logger sample time may be less than a second. The data stored in the memory 1. USB connection to, for example, a laptop computer. Because the automated weight logger 1. The memory 1. 8 in the data logger 1. At this duty cycle, both the 3 volt data logger battery 2. The bee hive may sit continuously on the weighing scale 1. Scale measurements may be made at daily intervals throughout the year. During active hive periods, daily weight changes of a hive may be monitored to within about 0. A daily change of bee hive weight may be in a range from about . The total hive weight may range between about 5. During less active periods, such as winter, the hive weight may be measured at least weekly. The required precision may be about 0. The ambient temperature may also be logged. The prior art may be devoid of a low cost, low power data logger for load cell measurements. Prior art devices may cost several thousands of dollars, may require large batteries, may use alternating current, or may require a dedicated computer. The invention may be useful where many spatially remote sites must be monitored. Examples may include measurement of bridge and building stresses, and snow.
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