Sprayer on-board instrumentation was developed to measure vibration inputs to the boom, boom accelerationresponse, boom end height response, and sprayer position along a field track with an aim of relating boom dynamics to fieldspray deposits. Vibration responses included tires, chassis suspension, boom suspension, and any flexure in components(including boom). Twelve accelerometers measured responses in longitudinal (x), vertical (y), and transverse (z) directionsat the chassis center rear, boom center, and at each boom end. Accelerometer rating of 10 g with a manufacturer-ratedaccuracy of 1% produced satisfactory system responses. An ultrasonic distance sensor operated satisfactorily as a boomheight sensor over mown grass with an accuracy of 0.03 m. A photoelectric-based position-along-track sensor operatedsatisfactorily with a 23 cm wide target to block the beam with an accuracy of 6 cm. This position sensor was developed toassist in locating the sprayer and boom dynamics relative to spray deposit samplers in a follow-on study. A PC-based dataacquisition system polled sensors at 2.5 kHz. Signal noise was reduced using bandpass (0.1 to 15 Hz) software filtering.Y-accelerations at the boom center ranged from 1.5 to -0.8 g. Response frequencies of the sprayer vehicle and boom rangedfrom 4 to 7 Hz in x, y, and z directions on a smooth track. A 20 cm track bump resulted in sprayer and boom response frequenciesof 1 to 2 Hz in the y direction and 5 to 6 Hz in x and z directions. The bump increased the peak acceleration power up to afactor of 19 for the y direction at both boom ends compared with a smooth track. A 20 cm dip and an opposing 20 cm bumpin the sprayer track had an insignificant effect in shifting primary response frequencies in the y direction. However, thedip/bump reduced the response frequency (<5 Hz) in the x and z directions at the boom center. A one-half sprayer tank loadof water (1514 L) dampened vehicle vibration so that the water load changed the main response frequency (<4.5 Hz) andreduced power levels (~55%) in the y direction at the boom center. The developed instrumentation system may be useful inthe design of future sprayers and spray booms and assist decisions on sprayer suspensions and operating speeds, boom designlength, and use of active boom suspensions.