This website uses cookies so that we can provide you with the best user experience possible. Cookie information is stored in your browser and performs functions such as recognising you when you return to our website and helping our team to understand which sections of the website you find most interesting and useful.
ITEMLIST
Products Infomation
- Products by Category
- RION VM-230A,VM-240A Acoustical Capacity Meter (combustion chamber)
Acoustic Measurement of Capacity/Volume Now precision measurement under dry conditions is possible for any shape of object.
Acoustical Capacity Meter (Combustion Chamber Capacity Meter)
*Regardless of the shape, the combustion chamber capacity can be measured by simply placting the capacity meter on the combustion chamber cavity of the cylinder head.
*In stead of using a spark plug of the assembled engine, special adapters are used to connect to the capacity meter so that the combustion chamber capacity can be measured.
*In the process of engine manufacturing or maintenance, the combustion chamber capacity can be measured ibn just two seconds in dry conditions.
Acoustical Volume Meter
*Unlike the conbentional method of the Archimedes pronciple (where the target object is immersed in water), this system allows volume measurement of the target object in dry conditions.
*Even the volume of objects with complex shape can be measured accurately in a short time (approx. two seconds).
Acoustical Capacity Meter (combustion chamber)
Model:
VM-230A,VM-240A
Maker:
RION CO.,LTD.
Measurement Method
The target capacity is calculated based on a comparison with a Reference Standard. First, the capacity of the Reference Standard is measured, with the results providing the parameters for measuring the target. Once the calibration process is completed, the target capacity can be measured repeatedly. Currently, to improve measurement precision, two or three Reference Standards are used for calibration. For example, for measuring target capacity of approximately 50 cm3, a measurement precision at
±0.05 cm3 can be achieved.
VM-240A/230A: Acoustical Capacity Meter
Specifications
| Acoustical Capacity Meter (Combustion Chamber Capacity Meter) |
|
| Capacity/ volume measurement: repeat precision | ±0.05 cm3 ＊１ |
| Required measurement time | Approx. 2 seconds (When number of analysis points is 1 024. Units: one-second steps) |
| Measurement frequency | 15 to 99 Hz (variable, depends on the object) |
| Numbers of analysis points | 256 to 4 096 points (variable, in a power-of-two. Initial value: 1 024 points) |
| Reference chamber: acoustic pressure in measurement tank |
Approx. 94 to 134 dB (1 to 100 Pa rms) |
| Reference chamber: internal dimension, capacity | φ90 mm x 91 (H) mm V1 nealy equal to 570 cm3 |
| Controller | Connected to a computer through a USB cable. 54 (H) x 150 (W) x 170 (D) mm, approx.400 g |
| Consumption current | 5 V, approx. 475 mA (approx. 2.4 VA) |
| Available OS | Microsoft Windows 7 Professional 32 bit / 64 bit, 8.1 Pro 32 bit / 64 bit, 10 Pro 32 bit / 64 bit |
| Accessories | ■ Connection cable, USB cable ■ AC adapter ■ Software (CD-ROM) |
| Options | ■ Reference standards For calibration, at least two reference standards are needed. 0 to 120 cm3 (in 5 cm3 increments) (Manufactured according to the capacity of the object.) ■ Spark plug hole adapter (for assembled engines) |
＊1 When a volume of 50 cm3 is measured under standard environmental conditions (20 ˚C, 50 %) (for a cylinder head)
To view the pdf files, the Adobe Reader from Adobe Systems is required.