VM-90三向轨迹测振仪是由日本理音公司生产的高精度测量仪器。该仪器重量仅为230克，便于携带和操作。它能够同时在三个方向（X轴、Y轴、Z轴）测量振动速度值及总值，并可按任意两个方向显示振动速度或位移轨迹图。这种独特的测量方式使其在振动分析领域具有显著优势。

在技术指标方面，VM-90采用三向压电加速度探头，测量方式为振动速度。其量程范围为0.2mm/s (RMS)至70mm/s (RMS)，最小测量值可达0.1mm/s (RMS)，测量精度为±10%。频率特性方面，基准频率为80Hz，X轴和Y轴的频率范围为10Hz至1kHz（±2dB），Z轴的频率范围为10Hz至500Hz（±2dB），10Hz以下和1kHz以上分别为-18dB/oct。

该仪器内存容量较大，可存储100组（X轴、Y轴、Z轴、总值）数据和8组3个方向的振动波形（1024点）。它配备了RS-232C接口，便于数据传输和进一步分析。显示屏为LCD 128×64，能够清晰地显示测量结果和波形。电源为2节5号电池，连续操作时间可达18小时。此外，VM-90的环境温度范围为0～50℃，相对湿度小于95%RH，尺寸为200(H)×65(W)×32(D) mm。

VM-90三向轨迹测振仪广泛应用于机械制造、航空航天、汽车工业、电子设备等领域。它能够帮助工程师和技术人员快速准确地检测和分析设备的振动情况，从而提高设备的运行效率和可靠性。

The VM-90 three-axis trajectory vibration meter is a high-precision measuring instrument produced by RION, a Japanese company. Weighing only 230 grams, this portable and easy-to-operate device can simultaneously measure vibration velocity values and total values in three directions (X, Y, and Z axes) and display vibration velocity or displacement trajectory diagrams in any two directions. This unique measurement method gives it a significant advantage in the field of vibration analysis.

In terms of technical specifications, the VM-90 features a triaxial piezoelectric accelerometer probe and measures vibration velocity. Its measuring range is from 0.2 mm/s (RMS) to 70 mm/s (RMS), with a minimum measurable value of 0.1 mm/s (RMS) and a measurement accuracy of ±10%. Regarding frequency characteristics, the reference frequency is 80 Hz. The frequency range for the X and Y axes is 10 Hz to 1 kHz (±2dB), while for the Z axis, it is 10 Hz to 500 Hz (±2dB). Frequencies below 10 Hz and above 1 kHz are -18dB/oct.

The instrument has a large memory capacity, capable of storing 100 sets of data (X, Y, Z, and total values) and 8 sets of vibration waveforms in three directions (1024 points). It is equipped with an RS-232C interface for convenient data transfer and further analysis. The display is an LCD 128×64, which can clearly show measurement results and waveforms. Powered by two AA batteries, the VM-90 can operate continuously for up to 18 hours. Additionally, it has an operating temperature range of 0 to 50℃ and a relative humidity of less than 95%RH. The dimensions are 200(H)×65(W)×32(D) mm.

The VM-90 three-axis trajectory vibration meter is widely used in various fields such as mechanical manufacturing, aerospace, automotive industry, and electronic equipment. It can help engineers and technicians quickly and accurately detect and analyze the vibration conditions of equipment, thereby improving the operating efficiency and reliability of the equipment.

VM-90三向轨迹测振仪的市场价格一般在48000元左右。该仪器由日本理音公司生产，其产品以高精度和可靠性著称。在中国市场上，有众多经销商提供该产品的销售及售后服务，例如北京时代天晨科技有限公司、厦门欣锐仪器仪表有限公司等。