Time and Frequency
บริการสอบเทียบเครื่องมือวัดทางด้านความถี่และเวลา (Time and Frequency)
Stop Watch RPM Meter
Timer Total Revolution
Signal Generator Counter
Arbitray Waveform Generator Frequency Meter
Frequency Counter Tachometer
Etc. Please contact
Time and Frequency ISO/IEC 17025 Accreditation
Parameter/Equipment |
Range |
Expanded Uncertainty of Measurement (+/-) |
Reference Standard, Method, and/or Equipment |
|
1 Frequency - Source |
(0.1 to 100) Hz (>0.1 to 1 kHz (> 1 to 10) kHz (> 10 to 100) kHz (> 0.1 to 1 MHz (> 1 to 15) MHz |
2.4 mHz 23 mHz 0.23 Hz 2.3 Hz 24 Hz 0.35 kHz |
HP 33120A Function Generator |
|
1 Frequency - Source |
(0.01 to 119.99) Hz (120 to 1199.9) Hz (1.2 to 11.999) kHz (12 to 119.99) kHz (120 to 1199.9) kHz (1.2 to 2) MHz |
0.2 mHz/Hz + 7.1 µHz |
Multiproduct Calibrator |
|
1 Frequency - Source |
300 kHz (> 300 to500) kHz (> 0.5 to 1) MHz (> 1 to 100) MHz (> 100 to 500) MHz (> 0.5 to 1) GHz (> 1 to 2) GHz (>2 to 3) GHz (> 3 to 4) GHz (> 4 to 5) GHz (> 5 to 6) GHz |
0.49Hz 0.82 Hz 1.7 Hz 0.16 kHz 0.82 kHz 1.6 kHz 3.3 kHz 4.9 kHz 6.5 GHz 8.2 kHz 9.8 kHz |
Signal Generator, SMIQ 06L |
|
1 Frequency – Measure |
(1 to 40) Hz (0.04 to 10) MHz |
0.58 mHz + 19 µHz 0.12 mHz + 60 mHz |
HP 3458A Multimeter (30 min) |
|
1 Frequency – Measure |
100 kHz (> 100 to 300) kHz (> 0.3 to 1) MHz (> 1 to 10) MHz (> 10 to 100) MHz (>100 to 225) MHz (> 0.225 to 1) GHz (> 1 to 3) GHz (> 3 to 5) GHz (>5 to 12.4) GHz |
1.2 x 10-6 kHz 3.6 x 10-6 kHz 1.2 x 10-8 MHz 1.2 x 10-7 MHz 5.1 x 10-8 MHz 5.2 x 10-7 MHz 1.1 x 10-6 MHz 1.5 x 10-8 GHz 2.5 x 10-8 GHz 6.5 x 10-8 GHz |
HP 53131A Universal Counter (24 hrs) |
|
1 Tachometer |
(Up to 99.99) RPM (>99 to 999.99) RPM (>999.99 to 99 999) RPM |
0.072 RPM 0.1 RPM 0.58 RPM |
Multiproduct Calibrator |
|
1 Stopwatch & Timers |
Up to 60 sec (60 to 600) sec (600 to 1200) sec (1200 to 1800) sec (1800 to 3600) sec |
0.033 sec 0.039 sec 0.046 sec 0.053 sec 0.074 sec |
HP 53131A Universal Counter – Totalize Method |
|
1 Rotation Speed/Total Revolutions |
(0.1 to 30) RPM (> 30 to 1 000) RPM (> 1 000 to 10 000) RPM (> 10 000 to 90 000) RPM |
0.5 % of Reading 0.2 % of Reading 0.07 % of Reading 0.07 % of Reading |
Tachometer |
1. On-site calibration service is available for this parameter, since on-site conditions are typically more variable than those in the laboratory, larger measurement uncertainties are expected on-site than what is reported on the accredited scope
